ILC-WASTE WATER 11 - ki.si · In ILC-Waste Water 11 participated 47 laboratories from Slovenia and from abroad. ... P i x x i p 1 1 (4) ... A1 F-mg/l 1,76 0,13 21 1,74 0,0920

,

ILC-WASTE WATER 11

Final report

Ljubljana, November 2005

National Institute of Chemistry Ljubljana

ILC-WASTE WATER 10

Final report Tehnical coordinator: dr. Magda Cotman Head of Laboratory for Chemistry, Biology and Technology of Water

prof. dr. Milenko Roš

Director NIC:

dr. Peter Venturini

Ljubljana, November 2005

National Institute of Chemistry Ljubljana DP-2338

ILC-WASTE WATER 10

Final report

Authors: dr. Magda Cotman prof. dr. Milenko Roš dr. Andreja Drolc

CONTENTS

1 INTRODUCTION 1 2 TEHNICAL PART

1 3 CONCLUSIONS

9

Annex 1 Results from the homogeneity and stability testing

10

Annex 2 Analytical data report

17

Annex 3 Graphical presentation results of the participants

42

Annex 4 Graphical presentation of Z-scores

57

Annex 5 Assessment of participants performance

72

Annex 6 List of participants

75

ILC-Waste Water 11

1. INTRODUCTION

The interlaboratory comparison on the field of analyses of waste water (ILC-Waste Water 11) was organised with aim to examine qualification of laboratories and to improve the quality of determinations in waste water. The present proficiency test was organised by National Institute of Chemistry in Ljubljana with the support Ministry of Environment and Physical Planning (MOP).

For the interlaboratory comparison ILC-Waste Water 11 we prepared samples for determination: chemical oxygen demand, total organic carbon, metals (aluminium, iron, cadmium, chromium), anions (fluoride, chloride, o-phosphate, sulphate) chromium(VI)), ammonium nitrogen and total nitrogen, phenols, oil and grease Parameter total nitrogen) is firstly included in the interlaboratory comparison.

The present report describes some important information about the proficiency testing scheme, results of homogeneity and stability studies and results of all participating laboratories. Each laboratory in the report was represented by its code number, which remains constant throughout the data tables and figures. The identification numbers were randomly given to the participating laboratory and the link between code number and the name of laboratory were known only technical co-ordinator. All information was treated with the greatest care and strictly confidential so the anonymity of the participants is guaranteed.

2. TEHNICAL PART

2. 1 Time schedule

Table 1: Time schedule for ILC-Waste Water 11 till the end of September 2005

Instructions for performing analysis and proper handling of sample in ILC-Waste Water 11

5. October 2005 Dispatch of samples 30. October 2005 Dead line for reporting of the results December 2005 Written report to be send to participants

Table 2: Technical committee ILC-Waste Water 11 Marjana Kovačič Representative Ministry of environment

and physical planning (MOP) Katja Otrin-Debevc Slovenian accreditation (SA) Marjan Veber Independent expert Boža Gregorc Representative of the participants Milenko Roš Andreja Drolc Magda Cotman

Representatives of organisers National Institute of Chemistry

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2.2 Participants

In ILC-Waste Water 11 participated 47 laboratories from Slovenia and from abroad. All laboratories paid fee and reported the results within the deadline except one who had technical problems with the equipment.

For the ILC-Waste Water 11 we prepared two samples for parameter: samples S1 and S2 for COD and TOC; samples K1 and K2 for metals (Al, Fe, Cd, Cr); samples A1 and A2 (fluoride, chloride, o-phosphate, sulphate). Samples K1-Cr (Cr(VI)), H1 (ammonium nitrogen), HTD1 (total nitrogen) TLS 1 (oil and grease) and F1 (phenol) were in one concentration level. Table 3: Samples used in ILC-Waste water 11 Sample code

Matrix Parameter ∗Concentration level

Amount Package

A1 artificially prepared solution

F-, PO43--P

Cl-, SO42-

0,5-5 mg/l 0,5-50 mg/l

500 ml

polyethylene bottle

A2 waste water F-, PO43--P

Cl-, SO42-

5-50 mg/l 50-500 mg/l

500 ml

polyethylene bottle

K1 artificially prepared solution

Al, Fe Cd, Cr,

250-2000 µg/l 10-200 µg/l

500 ml polyethylene bottle

K2 waste water Al, Fe Cd, Cr

10-250 µg/l 200-2000 µg/l


S1 artificially prepared solution

COD TOC

30–100 mg/l 1-50 mg/l


S2 waste water COD TOC

100 – 2000 mg/l 50 - 700 mg/l


F1 artificially prepared solution

Phenol 10-1000 µg/l 1000 ml polyethylene bottle

H1 waste water NH4+-N

1-100 mg/l 500 ml polyethylene

bottle HTD 1 artificially prepared

solution Total N 10- 500 mg/l 500 ml polyethylene

bottle K1-Cr artificially prepared

solution Cr(VI) 100 - 1000 µg/l

500 ml polyethylene

bottle TLS1 artificially prepared

solution Oil and grease 1-500 mg/l 1000 ml

(final volume)

polyethylene bottle

∗ concentration level could retire

2.3 Distribution of samples

Representatives of laboratories took over the samples at National Institute of Chemistry. Participants were requested to keep the samples during the transport in a refrigerator at 4ºC. The participants received with samples "Instructions for performing analyses and proper handling of samples". Participants of interlaboratory comparisons should apply the methods, which are prescribed in ISO standards, or other validated in-house methods. Analyses were done in three independent and parallel measurements. Results of the analyses were reported using the report forms. If the procedure deviates from the ISO standards, deviations were reported on the report forms, too.

.

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2.4 Quality assurance at National Institute of Chemistry

Quality assurance during sample preparation

The samples were prepared due to the quality control system at National Institute of Chemistry, Laboratory for chemistry, biology and technology of waters. We use glass (pipettes, volumetric flask) with certificates. All equipment used in interlaboratory comparison was good maintained and calibrated.

We performed for all samples the studies of stability and homogeneity. All analytical methods used in laboratory are validated. For the quality control we used: control charts, reference materials, certified reference material and laboratory collaborates in international interlaboratory comparisons.

2.5 Stability and homogeneity studies

The studies homogeneity and stability were performed: • for COD, Cr(VI), anions (fluoride, chloride, o-phosphate, sulphate)

ammonium nitrogen at National Institute of Chemistry; Laboratory for chemistry, biology and technology of waters,

• for metals: at National Institute of Chemistry; Laboratory for analytical chemistry

• for phenols, oil and grease we bought samples at RM producers. They guaranteed for stability and homogeneity of samples.

Homogeneity of samples

All samples of waste water were filtrated because it contains particles. For the between bottle homogeneity testing proper number of bottles were taken randomly and were analysed. The instruction all participants were warned to mix the samples. The results of stability testing are in Annex 1 and Table 4.

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Table 4: Results of homogeneity testing samples used in ILC-Waste Water 11 Sample code

Parameter Unit Mean value Standard deviation

Used method

Description

S1 COD mg/l 48,0 1,73 S2 COD mg/l 826 9,6

SIST ISO 6060 Oxidation with K2Cr2O/-titration

K1 Al µg/l 841 9,5 K1 Fe µg/l 603 1,7 K1 Cr µg/l 50,7 0,5 K1 Cd µg/l 121 3,6

SIST EN ISO 11885

ICP AES

K2 Al µg/l 196 7,0 K2 Fe µg/l 234 6,0 K2 Cr µg/l 338 3,5 K2 Cd µg/l 437 4,6

SIST EN ISO 11885

ICP AES

A1 F- mg/l 1,76 0,02 A1 Cl- mg/l 13,3 0,03 A1 PO4

3--P mg/l 3,17 0,01 A1 SO4

2- mg/l 23,6 0,50 A2 F- mg/l 21,0 0,28 A2 Cl- mg/l 185 3,15 A2 PO4

3--P mg/l 29,5 0,27 A2 SO4

2- mg/l 284 4,86

SIST ISO 10304-2

Ion chromatoraphy

H1 NH4+-N mg/l 31,3 0,08 SIST ISO 5664 Destilation, titrimetric

K1-Cr Cr(VI) µg/l 337 0,47 SIST ISO 11083 Spectrophotometric, diphenylcarbazide

Prepared samples were homogenous enough to be used in ILC-Waste Water 11 due to calculated between bottles and within bottle standard deviations The criteria sBB< 1/3 sL (standard deviation between bottle is smaller then 1/3 standard deviation between participants) were fulfilled for all samples used in ILC-Waste Water 11.

Stability of samples

It is known that waste water samples are degradable. Because of these we made preliminary stability study. Samples were exposed to four different temperature conditions. Because the impacts of different temperature were not significant in preliminary study the stability study with samples used in ILC-Waste Water 11 was performed only at 4°C. Beside the samples the reference material with suitable matrix (waste water) were analysed. The results of stability study were in Annex 1. Results obtained confirmed the stability of analysed parameters for duration of PT scheme

2.6 Evaluation of the results

Upon the distribution of samples each participant of ILC-Waste Water 11 received laboratory code number, which was only known to the participant and the organiser of interlaboratory comparison. The participants were requested to analyse samples by their usual techniques. They were requested to make three separate determinations of each parameter and report the results together with a short description of the method used on the report form attached to the instruction sheet. The reported results and other relevant information are given in Annex 2.

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Calculation of performance statistic

The results of participants were analysed using the statistical procedure of ISO 5725-2 (1994). To minimise the influence of extreme results statistical outliers were removed prior calculation. We used Cochran test and Grubbs test.

Cochrans criterion test eliminates only the highest value in a set of standard deviations and is therefore a one-side outlier test.

∑=

= p

iis

sC

1

2

2

max (1)

smax - is the highest standard deviation in the set

If C is greater than its 1% critical value, then item is called a statistical outlier. Cochrans criterion applies strictly only when all the standard deviations are derived from the same number (n) of the test results obtained under repeatability conditions.

Grubbs test eliminates the largest and the smallest observations

The largest observation:

sxxG pp ⎟⎟⎠

⎞⎜⎜⎝

⎛−=

_

(2)

and the smallest observation:

sxxG ⎟⎟⎠

⎞⎜⎜⎝

⎛−=

_

11 (3)

where

∑=

=P

iixx

p 1

1 (4)

and

2(1

1 )1

xxp

iip

s −−

= ∑=

(5)

All results (raw results) were used for the determination statistical outliers.

Reference values

Reference values were determined:

• Mean value (consensus value): the mean value of all participants, which analyses parameter with standard method without outliers and other unsuitable results.

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• Reference value determinate in laboratory that prepared reference material).

Table 5: Summary of data for calculation reference values "Raw" results Results for the

calculation of reference valuesSample code

Parameter Unit

Mean

Stand. deviation

Mean

Stand. deviation

Mean

Stand. deviation

S1 COD mg/l 51,8 8,13 39 50,9 4,60 34 S2 COD mg/l 827 23,2 39 826 18,0 34 S1 TOC mg/l 20,3 1,59 9 20,2 1,16 8 S2 TOC mg/l 334 15,0 9 335 15,0 9 K1 Al µg/l 798 225 19 836 12,1 17 K1 Fe µg/l 565 156 25 609 80,6 22 K1 Cd µg/l 50,0 4,7 25 50,2 2,62 24 K1 Cr µg/l 122 11,2 24 122 11,2 24 K2 Al µg/l 221 107 20 215 54,2 17 K2 Fe µg/l 255 45,8 25 238 26,8 18 K2 Cd µg/l 297 18,8 25 308 18,8 25 K2 Cr µg/l 401 45,0 25 411 32,9 22 A1 F- mg/l 1,76 0,13 21 1,74 0,09 20 A1 Cl-, mg/l 13,1 1,02 33 13,2 0,99 32 A1 PO4

3--P mg/l 3,13 0,85 33 2,99 0,36 30 A1 SO4

2- mg/l 24,8 3,28 31 24,3 2,25 29 A2 F- mg/l 22,1 6,93 20 20,7 1,83 18 A2 Cl- mg/l 176 8,87 32 176 8,87 32 A2 PO4

3--P mg/l 28,8 8,25 33 27,9 2,68 30 A2 SO4

2- mg/l 265 23,4 32 263 18,8 30 H1 NH4

+-N mg/l 31,1 1,69 34 31,0 1,37 32 HTD1 Total N mg/l 74,2 13,2 16 71,7 5,76 13 K1-Cr Cr(VI) µg/l 337 40,2 24 344 15,7 22 F1 Phenol µg/l 127 28,8 14 116 Ref. value TLS1 Oil and grease mg/l 60,5 60,8 20 50,0 Ref. value

The internationally recommended Z-score was used as the performance score. For each results Xi the individual Z score was calculated according to formula presented.

sperf

valuereferenceXiZ ""−= (6)

"reference” value: average of laboratory averages without outliers sperf – target performance criteria

sperf= CVperf. (reference value) (7)

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Table 6: Target performance criteria Sample code Concentration level

CVperf

S1(COD) 30-100 mg/l 2,5% S2(COD) 100-2000 mg/l 5 % S1(TOC) 1-50 mg/l 10% S1(TOC) 50-700 mg/l 5% K1 (Al, Fe) K1 (Cd, Cr)

250-1000 µg/l 10-200 µg/l

5 % 10%

K2 (Al, Fe) K2 (Cd, Cr)

10-250 µg/ 200-1000 µg/l

10% 5%

A1 (F-, PO43--P)

A1 (Cl-, SO42-)

0,5-5 mg/l 0,5-50 mg/l

5 %

A2 (F-, PO43--P)

A2 (Cl-, SO42-)

5-50 mg/l 50-500 mg/

5 %

H1 (NH4+-N ) 1-100 mg/l 5%

HTD1 1-100 mg/l 5% K1-Cr (Cr(VI)) 100-1000 µg/l 5 % F1 10-1000 µg/l 10 % TLS 1-500 mg/l 15% ∗ the criteria is canged during the scheme

To ease the interpretation of Z-scores the following agreements were internationally made: ⏐Z⏐≤ 2 the result is satisfactory 2<⏐Z⏐<3 the result is questionable ⏐Z⏐≥ 3 the result is unsatisfactory The Z-scores are presented in the Annex 2 (tables) and in Annex 4 (graphs). The summarised results are shown in Table 7.

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Table 7: Data used for computing Z scores

Limits Sample code

Parameter Unit

Reference value lower upper

S1 COD mg/l 50,9 45,8 56,0S2 COD mg/l 826 785 867S1 TOC mg/l 20,2 16,2 24,3S2 TOC mg/l 335 302 369K1 Al µg/l 836 752 920K1 Fe µg/l 609 548 670K1 Cd µg/l 50,2 40,2 60,2K1 Cr µg/l 122 97,5 146K2 Al µg/l 215 172 258K2 Fe µg/l 238 191 286K2 Cd µg/l 308 277 338K2 Cr µg/l 411 370 452A1 F- mg/l 1,74 1,56 1,91A1 Cl- mg/l 13,2 11,9 14,5A1 PO4

3--P mg/l 2,99 2,69 3,29A1 SO4

2- mg/l 24,3 21,9 26,7A2 F- mg/l 20,7 18,6 22,8A2 Cl- mg/l 176 159 194A2 PO4

3--P mg/l 27,9 25,1 30,6A2 SO4

2- mg/l 263 236 289H1 NH4

+-N mg/l 31,0 27,9 34,1HTD1 Total N mg/l 71,7 64,5 78,9K1-Cr Cr(VI) µg/l 344 310 379F1 Phenol µg/l 116 92,8 139TLS1 Oil and grease mg/l 50,0 35,0 65,0

Performance criteria

Each laboratory could co-operate in ILC-Waste Water 11 with optional number of parameters or samples.

Each laboratory should get a certificate, which summarise the performance of participant in the ILC-Waste Water 11. The certificate contains: name and address of participant, name of PT scheme, date of issue, parameters and signatures. The summarised results together with performance criterions for all participants are shown in Annex 5.

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3. CONCLUSIONS

The quality control of water analysis is currently a major priority in many countries. Only accurate analytical results allow valid conclusions to be drawn about the quality of different types of waste water and the risk related to biota. Quality assurance for water analysis is, therefore, a major concern for the evaluation of the state of environment or the quality of waste water. The quest of quality is a long-term process, which requires adherence to rules such as the use of control charts, reference material, certified reference material and participation in interlaboratory comparisons.

The interlaboratory comparison (ILC-Waste Water 11) was organised at the National Institute of Chemistry, Laboratory for chemistry, biology and technology of waters on the basis of international standards. The present PT attracted around 50 participants from Slovenia and from abroad. For the interlaboratory comparison ILC-Waste Water 11 we prepared samples for determination: chemical oxygen demand, total organic carbon, metals (aluminium, iron, cadmium, chromium), anions (fluoride, chloride, o-phosphate, sulphate) chromium(VI)), ammonium nitrogen, total nitrogen, phenols, oil and grease. Total nitrogen determination is firstly included. The concentration levels for aluminium and iron were changed between samples K1 and K2, so the performance criteria was exchanged too.

For most parameters we used as reference values consensus values: the mean values of all participants, which analyses parameter with standard method without outliers and other unsuitable results. The reference values for phenols and oil and grease were determined in laboratory, which prepared RM.

For the calculation of performance criteria we used target performance criteria on the basis requirements for laboratories performing monitoring of waste water. The performance criteria were known participants in advance. The target performance criterions for oil and grease changed during the scheme from 10% to 15% because of low concentration of analyte.

The purpose of this PT scheme is to enable the participants to check their day-to-day analytical performance. The participants should use the results for improving its quality.

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Annex 1

Results from the homogeneity and stability testing

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Table 1-1: Results of the homogeneity test sample S1 for determination COD used in ILC- Waste Water 11

Results, mg/l Sample code 1 2 3 Mean value,

mg/l Standard deviation, mg/l

S1 vz št. 20 46,0 46,0 46,0 46,0 0,0 S1 vz št. 32 46,0 46,0 55,0 49,0 5,2 S1 vz št.38 46,0 46,0 55,0 49,0 5,2

Mean value, mg/l 48,0 Stand. deviation of means, mg/l 1,73

Measurement uncertainty, % 2,8 (K=2) Table 1-2 Results of the homogeneity test sample S2 for determination COD used in ILC- Waste Water 11



S2 vz št.33 819 819 819 819 0,0 S2 vz št.38 837 837 837 837 0,0 S2 vz št.45 819 819 828 822 5,2

Mean value, mg/l 826 Stand. deviation of means, mg/l 9,6

Measurement uncertainty, % 2,8 (K=2) Table 1-3: Results of the homogeneity test sample K1 for determination metals used in ILC- Waste Water 11

Results, µg/l (average value ± measurement uncertainty)

Sample code

Al Fe Cd Cr K1 vz. št.15 848±30 601±20 51,2±5 123±7K1 vz. št.26 844±30 604±20 50,6±5 121±7K1 vz. št. 32 830±30 604±20 50,2±5 120±7

Mean value, µg/l 841 603 50,7 121Stan. deviation, µg/ 9,5 1,7 0,5 3,6

Table 1-4: Results of the homogeneity test sample K2 for determination metals used in ILC- Waste Water 11

Results, µg/l (average value ± measurement uncertainty)

Sample code

Al Fe Cd Cr K2 vz. št.20 203±10 228±12 342±15 434±20K2 vz. št.21 189±10 234±12 335±15 434±20K2 vz.št.30 197±10 240±12 338±15 442±20

Mean value, µg/l 196 234 338 437Stan. deviation, µg/l 7,0 6,0 3,5 4,6

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Table 1-5: Results of the homogeneity test sample A1 for determination fluoride used in ILC- Waste Water 11



A1 vz št 2 1,72 1,73 1,74 1,73 0,01 A1 vz št 25 1,75 1,77 1,77 1,76 0,01 A1 vz št 29 1,77 1,78 1,78 1,78 0,01


Measurement uncertainty, % 2,8 (K=2) Table 1-6: Results of the homogeneity test sample A2 for determination fluoride used in ILC-Waste Water 11

1 Results, mg/l Sample code 1 2 3 Mean value,




Measurement uncertainty, % 2,8 (K=2) Table 1-7: Results of the homogeneity test sample A1 for determination chloride used in ILC-Waste Water 11





Measurement uncertainty, % 2,8 (K=2) Table 1-8: Results of the homogeneity test sample A2 for determination chloride used in ILC-Waste Water 11



A2 vz št 2 181 181 181 181 0,00 A2 vz št 20 185 186 186 186 0,58 A2 vz št 21 186 188 187 187 1,00


Measurement uncertainty, % 2,8 (K=2)

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Table 1-9: Results of the homogeneity test sample A1 for determination o-phosphate used in ILC-Waste Water 11





Measurement uncertainty, % 2,8 (K=2) Table 1-10: Results of the homogeneity test sample A2 for determination o-phosphate used in ILC-Waste Water 11





Measurement uncertainty, % 2,8 (K=2) Table 1-11: Results of the homogeneity test sample A1 for determination sulphate used in ILC-Waste Water 11





Measurement uncertainty, % 2,8 (K=2) Table 1-12: Results of the homogeneity test sample A2 for determination sulphate used in ILC-Waste Water 11



A2 vz št 2 278 278 278 278 0,00 A2 vz št 20 287 287 287 287 0,00 A2 vz št 21 287 285 285 286 1,15


Measurement uncertainty, % 2,8 (K=2)

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Table 1-13: Results of the homogeneity test sample H1 for determination ammonia nitrogen used in ILC-Waste Water 11



H1 vz št 8 31,0 31,3 31,4 31,2 0,21 H1 vz št. 20 31,4 31,3 31,0 31,2 0,21 H1 vz št. 39 31,4 31,1 31,6 31,4 0,25


Measurement uncertainty, % 2,1 (K=2) Table 1-14: Results of the homogeneity test sample K1-Cr for determination chromium(VI) used in ILC-Waste Water 11

Results, µg/l Sample code 1 2 3 Mean value,

µg /l Stand. deviation, µg /l

K1vz št 4 339 339 342 340 1,73 K1vz št 13 337 337 335 336 1,15 K1vz št 30 337 337 337 337 0,00

Mean value, µg/l 337 Stan. deviation, µg/l 0,47

Table 1-15: Results of the stability test sample S1 for determination COD used in ILC- Waste Water 11

Results, mg/l Date Sample code 1 2 3 Mean value,

mg/l Stand. deviation, mg/l

5.10.2005 S1 vz št. 20 46,0 46,0 46,0 46,0 0,012.10.2005 S1 vz št. 20 45,0 45,0 48,0 46,0 1,718.10.2005 S1 vz št. 20 49,0 49,0 49 49,0 0,0

Table 1-16: Results of the stability test sample S2 for determination COD used in ILC- Waste Water 11



5.10.2005 S2 vz št.38 837 837 837 837 0,012.10.2005 S2 vz št.38 825 825 825 825 0,018.10.2005 S2 vz št.38 837 819 819 825 10,4

Table 1-17: Results of the stability test sample K1 for determination metals used in ILCP- Waste Water 11 Date Results, µg/l

(average value ± measurement uncertainty)

Sample code

Al Fe Cd Cr 20. 10. 2005 K1 vz. št.15 848±30 601±20 51,2±5 123±77. 11. 2005 K1 vz. št.15 897±30 669±20 52,4±5 131±7

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Table 1-18: Results of the stability test sample K2 for determination metals used in ILC- Waste Water 11 Date Results, µg/l

(average value ± measurement uncertainty)

Sample code

Al Fe Cd Cr 20. 10. 2005 K2 vz. št.20 203±10 228±12 342±15 434±207. 11. 2005 K2 vz. št.20 196±10 242±12 321±15 444±20 Table 1-19: Results of the stability test sample A1 for determination fluoride used in ILC- Waste Water 11



7.10.2005 A1 vz št 25 1,75 1,77 1,77 1,76 0,0110.10.2005 A1 vz št 25 1,77 1,78 1,79 1,78 0,0117.10.2005 A1 vz št 25 1,80 1,79 1,80 1,80 0,01

Table 1-20: Results of the stability test sample A2 for determination fluoride used in ILC- Waste Water 11




Table 1-21: Results of the stability test sample A1 for determination chloride used in ILC- Waste Water 11




Table 1-22: Results of the stability test sample A2 for determination chloride used in ILC- Waste Water 11



7.10.2005 A2 vz št 21 186 188 187 187 1,0010.10.2005 A2 vz št 21 175 173 174 174 1,0017.10.2005 A2 vz št 21 173 173 174 173 0,58

Table 1-23: Results of the stability test sample A1 for determination o-phosphate used in ILC- Waste Water 11




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Table 1-24: Results of the stability test sample A2 for determination o-phosphate used in ILC- Waste Water 11



7.10.2005 A2 vz št 21 29,7 29,8 29,7 30 0,0610.10.2005 A2 vz št 21 28,5 27,2 27 28 0,7517.10.2005 A2 vz št 21 28,2 28 28 28 0,36

Table 1-25: Results of the stability test sample A1 for determination sulphate used in ILC- Waste Water 11




Table 1-26: Results of the stability test sample A2 for determination sulphate used in ILC- Waste Water 11



7.10.2005 A2 vz št 21 287 285 285 286 1,1510.10.2005 A2 vz št 21 271 273 274 273 1,5317.10.2005 A2 vz št 21 259 260 260 260 0,58

Table 1-27: Results of the stability test sample H1 for determination ammonia nitrogen used in ILC- Waste Water 11



5.10.2005 H1 vz št. 20 31,4 31,3 31,0 31,2 0,2113.10.2005 H1 vz št. 20 31,3 31,1 31,3 31,2 0,1220.10.2005 H1 vz št. 20 31,2 31,3 31,4 31,3 0,10

Table 1-28: Results of the stability test sample K1-Cr for determination chromium(VI) used in ILC- Waste Water 11



5.10.2005 K1vz št 13 337 337 335 336 1,1510.10.2005 K1vz št 13 349 351 356 352 3,6117.10.2005 K1vz št 13 350 351 352 351 1,00

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Annex 3

Graphical presentation results of the participants

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0

20

40

60

80

100

31 28 13 42 39 26 29 8 41 30 4 20 3 32 33 21 25 22 27 40 7 23 24 34 38 48 17 46 14 18 12 19 10 2 45 1 44 6 15

Identification code

CO

D, m

g/l

results outlier reference value lower limit upper limit

Figure 3-1: Results of determination COD in sample S1 used in ILC-Waste Water 11

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600

650

700

750

800

850

900

950

1000

31 22 25 1 20 7 45 8 28 19 13 30 27 38 34 46 48 33 26 41 4 6 24 12 32 14 17 21 40 42 44 18 29 39 15 2 23 10 3

Identifcation code

CO

D, m

g/l


Figure 3-2: Results of determination COD in sample S2 used in ILC-Waste Water 11

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0,0

5,0

10,0

15,0

20,0

25,0

30,0

6 8 43 13 28 18 29 25 30

Identifcation code

TOC

, mg/

l


Figure 3-3: Results of determination TOC in sample S1 used in ILC-Waste Water 11

200

220

240

260

280

300

320

340

360

380

400

28 8 6 43 13 30 18 25 29

Identification code

TOC

, mg/

l


Figure 3-4: Results of determination TOC in sample S2 used in ILC-Waste Water 11

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0

200

400

600

800

1000

1200

1400

13 28 35 23 7 34 44 14 48 46 41 39 22 27 8 30 37 19 25

Identifcation code

Con

c. A

l, µg

/l

results outlier lower limit upper limit outlier

Figure 3-5: Results of determination aluminium in sample K1 used in ILC-Waste Water 11

0

100

200

300

400

500

600

13 39 46 48 34 23 19 41 27 28 37 22 35 30 25 8 7 43 14 44

Identifcation code

Con

c. A

l, µg

/l

results reference value lower limit upper limit oultlier

Figure 3-6: Results of determination aluminium in sample K2 used in ILC-Waste Water 11

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0

10

20

30

40

50

60

70

80

4 25 23 8 29 27 43 30 13 2 32 41 28 46 48 34 26 44 22 37 14 39 7 35 6

Identification code

Con

c. C

d, µ

g/l

results reference value lower limit upper limit outlier

Figure 3-7: Results of determination cadmium in sample K1 used in ILC-Waste Water 11

200

220

240

260

280

300

320

340

360

14 23 7 6 25 2 4 8 44 28 34 46 27 30 29 41 32 37 22 48 13 35 26 43 39Identification code

Con

c. C

d, µ

g/l


Figure 3-8: Results of determination cadmium in sample K2 used in ILC-Waste Water 11

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ILC- Waste Water 11

0

20

40

60

80

100

120

140

160

2 13 37 23 44 43 22 41 46 48 8 27 28 35 14 34 6 29 26 7 39 25 30 40

Identification code

Con

c. C

r, µg

/l

results reference value lower limit upperl limit outlier

Figure 3-9: Results of determination chromium in sample K1 used in ILC-Waste Water 11

0

100

200

300

400

500

600

26 44 37 2 23 29 14 28 13 35 8 46 6 48 22 41 39 34 7 32 43 40 30 27 25Identification code

Con

c. C

r, µg

/l


Figure 3-10: Results of determination chromium in sample K2 used in ILC-Waste Water 11

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ILC- Waste Water 11

0

100

200

300

400

500

600

700

800

900

40 13 17 37 2 23 26 27 48 30 32 29 35 22 39 41 4 46 25 19 34 20 7 28 8

Identification code

Con

c. F

e, µ

g/l


Figure 3-11: Results of determination iron in sample K1 used in ILC-Waste Water 11

0

100

200

300

400

500

600

700

13 2 37 17 26 39 46 48 35 41 22 27 29 32 7 30 28 4 23 20 34 19 25 8 40

Identifcation code

Con

c. F

e, µ

g/l


Figure 3-12: Results of determination iron in sample K2 used in ILC-Waste Water 11

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ILC- Waste Water 11

0,0

0,5

1,0

1,5

2,0

2,5

3,0

3,5

36 44 39 2 8 10 23 18 28 11 6 32 13 34 29 41 22 7 48 25 43Identification code

Con

c. fl

ourid

e, m

g/l


Figure 3-13: Results of determination fluoride in sample A1 used in ILC-Waste Water 11

0,0

5,0

10,0

15,0

20,0

25,0

30,0

35,0

40,0

45,0

50,0

55,0

36 7 23 39 10 18 22 2 32 34 29 48 41 28 8 13 44 25 43 6Identification code

Con

c. fl

ourid

e, m

g/l


Figure 3-14: Results of determination fluoride in sample A2 used in ILC-Waste Water 11

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ILC- Waste Water 11

0

2

4

6

8

10

12

14

16

18

20

44 14 19 2 6 26 18 32 21 34 8 45 46 20 35 48 39 22 11 4 29 43 7 28 13 38 27 23 30 17 10 25 16Identification code

Con

c. c

hlor

ide,

mg/

l

results outlier reference value lower lomit upper limit

Figure 3-15: Results of determination chloride in sample A1 used in ILC-Waste Water 11

100

120

140

160

180

200

220

240

44 2 13 23 6 27 48 4 19 35 45 18 7 16 14 43 46 20 34 39 29 21 22 25 8 32 17 10 28 38 30 26

Identiication code

Con

c. c

hlor

ide,

mg/

l

results outlier reference value lower limit upper limit Figure 3-16: Results of determination chloride in sample A2 used in ILC-Waste Water 11

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ILC- Waste Water 11

0,0

1,0

2,0

3,0

4,0

5,0

6,0

7,0

8,0

13 21 45 30 18 16 2 6 25 7 27 35 34 22 26 14 29 40 10 31 43 23 19 37 20 32 39 48 8 44 46 28 4

Identification code

Con

c. o

-pho

spha

te, m

g P/

l


Figure 3-17: Results of determination o-phosphate in sample A1 used in ILC-Waste Water

11

0,0

10,0

20,0

30,0

40,0

50,0

60,0

70,0

19 13 10 21 45 30 16 2 7 26 29 34 27 35 14 39 32 40 48 20 43 37 25 8 23 44 6 46 28 18 22 31 4

Identifcation code

Con

c. o

-pho

spha

te, m

g P/

l

results outlier reference v alue lower limit upper limit

Figure 3-18: Results of determination o-phosphate in sample A2 used in ILC-Waste Water 11

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ILC- Waste Water 11

02468

10121416182022242628303234363840

17 16 20 10 38 40 44 32 29 26 48 30 23 2 27 36 13 4 6 21 7 34 22 8 46 28 41 46A 25 37 43

Identification code

Con

c. s

upha

te, m

g/l

results outlier re ference value low er lim it upper lim it

Figure 3-19: Results of determination sulphate in sample A1 used in ILC-Waste Water 11

150

170

190

210

230

250

270

290

310

10 37 36 20 21 30 13 7 2 23 27 22 34 40 32 38 25 46A 29 28 46 8 26 41 4 6 35 48 43 44 17 16

Identifcation code

Con

c. s

ulph

ate,

mg/

l


Figure 3-20: Results of determination sulphate in sample A2 used in ILC-Waste Water 11

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ILC- Waste Water 11

0

5

10

15

20

25

30

35

40

37 12 8 30 33 19 24 43 7 40 26 28 46 3 35 32 39 2 45 29 18 6 25 48 14 13 22 34 20 21 27 1 44 10Identifcation code

Con

c. N

H4-

N, m

g/l


Figure 3-21: Results of determination ammonia nitrogen in sample H1 used in ILC-Waste Water 11

40

50

60

70

80

90

100

110

120

37 2 28 10 24 6 29 32 12 7 25 35 39 8 46 13

Identification code

Con

c. to

tal n

itrog

en, m

g/l


Figure 3-22: Results of determination total nitrogen in sample HTD1 used in ILC-Waste Water 11

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ILC- Waste Water 11

100

150

200

250

300

350

400

450

500

28 14 13 18 39 6 35 22 25 43 47 8 26 36 29 30 40 32 48 34 41 46 7 37

Identification code

Con

c. C

r(VI

), µg

/l


Figure 3-23: Results of determination Cr(VI) in sample K1-Cr used in ILC-Waste Water 11

0

20

40

60

80

100

120

140

25 30 6 1 16 15 2 8 46 39 48 35 34 32 22 7 29 28 43 10Identification code

Con

c. T

LS, m

g/l


Figure 3-24: Results of determination oil and grease in sample TLS1 used in ILC-Waste Water 11

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ILC- Waste Water 11

0

20

40

60

80

100

120

140

160

180

200

220

240

25 43 46 28 13 34 45 8 2 39 29 32 35 7Identification code

Con

c. p

heno

l, m

g/l


Figure 3- 25: Results of determination phenol in sample F1 used in ILC-Waste Water 11

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Annex 4

Graphical presentation of Z-scores

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ILC-Waste Water 11

-4,00

-3,00

-2,00

-1,00

0,00

1,00

2,00

3,00

4,00

1 2 3 4 6 7 8 10 12 13 14 15 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 38 39 40 41 42 44 45 46 48

Identification code

Z

Figure 4-1: Z-scores for determination COD in sample S1 used in ILC- Waste Water 11

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ILC-Waste Water 11

-4,00

-3,00

-2,00

-1,00

0,00

1,00

2,00

3,00

4,00

1 2 3 4 6 7 8 10 12 13 14 15 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 38 39 40 41 42 44 45 46 48

Identifikacijska številka laboratorija

Z

Figure 4-2: Z-scores for determination COD in sample S2 used in ILC- Waste Water 11

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ILC-Waste Water 11

-4,00

-3,00

-2,00

-1,00

0,00

1,00

2,00

3,00

4,00

6 8 13 18 25 28 29 30 43

Identification code

Z

Figure 4-3: Z-scores for determination TOC in sample S1 used in ILC- Waste Water 11

-4,00

-3,00

-2,00

-1,00

0,00

1,00

2,00

3,00

4,00

6 8 13 18 25 28 29 30 43

Identification code

Z

Figure 4-4: Z-scores for determination TOC in sample S2 used in ILC- Waste Water 11

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ILC-Waste Water 11

-4,00

-3,00

-2,00

-1,00

0,00

1,00

2,00

3,00

4,00

7 8 13 14 19 22 23 25 27 28 30 34 35 37 39 41 44 46 48

Identifcation code

Z

Figure 4-5: Z-scores for determination Al in sample K1 used in ILC- Waste Water 11

-4,00

-3,00

-2,00

-1,00

0,00

1,00

2,00

3,00

4,00

7 8 13 14 19 22 23 25 27 28 30 34 35 37 39 41 43 44 46 48

Identification code

Z

Figure 4-6: Z-scores for determination Al in sample K2 used in ILC- Waste Water 11

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ILC-Waste Water 11

-4,00

-3,00

-2,00

-1,00

0,00

1,00

2,00

3,00

4,00

2 4 6 7 8 13 14 22 23 25 26 27 28 29 30 32 34 35 37 39 41 43 44 46 48

Identification code

Z

Figure 4-7: Z-scores for determination Cd in sample K1 used in ILC- Waste Water 11

-4,00

-3,00

-2,00

-1,00

0,00

1,00

2,00

3,00

4,00

2 4 6 7 8 13 14 22 23 25 26 27 28 29 30 32 34 35 37 39 41 43 44 46 48

Identification code

Z

Figure 4-8: Z-scores for determination Cd in sample K2 used in ILC- Waste Water 11

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ILC-Waste Water 11

-4,00

-3,00

-2,00

-1,00

0,00

1,00

2,00

3,00

4,00

2 6 7 8 13 14 22 23 25 26 27 28 29 30 34 35 37 39 40 41 43 44 46

Identification code

Z

Figure 4-9: Z-scores for determination Cr in sample K1 used in ILC- Waste Water 11

-4,00

-3,00

-2,00

-1,00

0,00

1,00

2,00

3,00

4,00

2 6 7 8 13 14 22 23 25 26 27 28 29 30 32 34 35 37 39 40 41 43 44 46 48

Identification code

Z

Figure 4-10: Z-scores for determination Cr in sample K2 used in ILC- Waste Water 11

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-4,00

-3,00

-2,00

-1,00

0,00

1,00

2,00

3,00

4,00

2 4 7 8 13 17 19 20 22 23 25 26 27 28 29 30 32 34 35 37 39 40 41 46 48

Identification code

Z

Figure 4-11: Z-scores for determination Fe in sample K1 used in ILC- Waste Water 11

-4,00

-3,00

-2,00

-1,00

0,00

1,00

2,00

3,00

4,00

2 4 7 8 13 17 19 20 22 23 25 26 27 28 29 30 32 34 35 37 39 40 41 46 48

Identification code

Z

Figure 4-12: Z-scores for determination Fe in sample K2 used in ILC- Waste Water 11

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-4

-3

-2

-1

0

1

2

3

4

2 6 7 8 10 11 13 18 22 23 25 28 29 32 34 36 39 41 43 44 48

Identification code

Z

Figure 4-13: Z-scores for determination fluoride in sample A1 used in ILC- Waste Water 11

-4

-3

-2

-1

0

1

2

3

4

2 6 7 8 10 13 18 22 23 25 28 29 32 34 36 39 41 43 44 48

Identification code

Z

Figure 4-14: Z-scores for determination fluoride in sample A2 used in ILC- Waste Water 11

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ILC-Waste Water 11

-4

-3

-2

-1

0

1

2

3

4

2 4 6 7 8 10 11 13 14 16 17 18 19 20 21 22 23 25 26 27 28 29 30 32 34 35 38 39 43 44 45 46 48

Identification code

Z

Figure 4-15: Z-scores for determination chloride in sample A1 used in ILC- Waste Water

11

-4

-3

-2

-1

0

1

2

3

4

2 4 6 7 8 10 13 14 16 17 18 19 20 21 22 23 25 26 27 28 29 30 32 34 35 38 39 43 44 45 46 48

Identifcation code

Z

Figure 4-16: Z-scores for determination chloride in sample A2 used in ILC- Waste Water 11

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ILC-Waste Water 11

-4

-3

-2

-1

0

1

2

3

4

2 4 6 7 8 10 13 14 16 18 19 20 21 22 23 25 26 27 28 29 30 31 32 34 35 37 39 40 43 44 45 46 48

Identification code

Z

Figure 4-17: Z-scores for determination o-phosphate in sample A1 used in ILC- Waste

Water 11

-4

-3

-2

-1

0

1

2

3

4

2 4 6 7 8 10 13 14 16 18 19 20 21 22 23 25 26 27 28 29 30 31 32 34 35 37 39 40 43 44 45 46 48

Identification code

Z

Figure 4-18: Z-scores for determination o-phosphate in sample A2 used in ILC- Waste

Water 11

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ILC-Waste Water 11

-4

-3

-2

-1

0

1

2

3

4

2 4 6 7 8 10 13 16 17 20 21 22 23 25 26 27 28 29 30 32 34 36 37 38 40 41 43 44 46 46A 48

Identification code

Z

Figure 4-19: Z-scores for determination sulphate in sample A1 used in ILC- Waste Water 11

-4

-3

-2

-1

0

1

2

3

4

2 4 6 7 8 10 13 16 17 20 21 22 23 25 26 27 28 29 30 32 34 35 36 37 38 40 41 43 44 46 46A 48

Identification code

Z

Figure 4-20: Z-scores for determination sulphate in sample A2 used in ILC- Waste Water 11

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ILC-Waste Water 11

-4

-3

-2

-1

0

1

2

3

4

1 2 3 6 7 8 10 12 13 14 18 19 20 21 22 24 25 26 27 28 29 30 32 33 34 35 37 39 40 43 44 45 46 48

Identification code

Z

Figure 4-21: Z score for determination ammonia nitrogen in sample H1 used in ILC-Waste

Water 11

-4

-3

-2

-1

0

1

2

3

4

2 6 7 8 10 12 13 24 25 28 29 32 35 37 39 46

Identifcation code

Z

Figure 4-22: Z score for determination total nitrogen in sample HTD1 used in ILC-Waste

Water 11

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ILC-Waste Water 11

-4

-3

-2

-1

0

1

2

3

4

6 7 8 13 14 18 22 25 26 28 29 30 32 34 35 36 37 39 40 41 43 46 47 48

Identifcation code

Z

Figure 4-23: Z score for determination Cr(VI) in sample K1-Cr used in ILC-Waste Water 11

-4

-3

-2

-1

0

1

2

3

4

1 2 6 7 8 10 15 16 22 25 28 29 30 32 34 35 39 43 46 48

Identifcation code

Z

Figure 4-24: Z score for determination oil and grease in sample TLS1 used in ILC-Waste Water 11

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ILC-Waste Water 11

-4

-3

-2

-1

0

1

2

3

4

2 7 8 13 25 28 29 32 34 35 39 43 45 46

Identifcation code

Z

Figure 4-25: Z score for determination phenol in sample F1 used in ILC-Waste Water

11

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Annex 5

Assessment of participants performance

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Table 5-1. Assessment of participants performance in ILC-Waste Water 11

Sample code S1-

COD S2-COD

S1-TOC

S2- TOC

K1-Al K2-Al K1-Cd K2-Cd K1-Cr K2-Cr K1-Fe K2-Fe A1-F- A2-F- A1-Cl- A2-Cl- A1 PO4-P

A2 PO4-P

A1- SO4

A2- SO4

H1- NH4-N

HTD1- CVN

K1-Cr(VI)

TLS 1 F1-phenol

1 z>3 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 3>z>2 3>z>2 z>3 1 3>z>2 1 13 1 z>3 14 1 1 1 1 1 1 1 1 1 1 1 z>3 z>3 6 z>3 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 z>3 z>3 7 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 z>3 1 3>z>2 z>3 8 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 z>3 1 z>3 z>3

10 11 1 1 1 3>z>2 1 1 3>z>2 1 z>3 z>3 z>3 11 1 1 12 1 1 1 3>z>2

13 3>z>2 1 1 1 1 1 1 1 1 z>3 z>3 1 1 z>3 z>3 1 1 1 1 z>3 z>3 z>3 3>z>2 114 1 1 1 1 1 1 1 1 z>3 1 z>3 3>z>2 1 3>z>2 15 z>3 1 116 1 1 z>3 1 z>3 z>3 1 17 1 1 11 1 z>3 z>3 3>z>2 18 1 1 1 1 1 1 1 1 1 1 1 119 1 1 1 1 1 1 z>3 1 1 3>z>2 z>3

20 1 1 1 1 1 1 1 1 1 1 z>3 21 1 1 1 1 1 1 1 1 3>z>2

22 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 23 1 1 1 1 1 1 1 1 1 1 1 1 11 1 z>3 1 1 24 1 1 1 1 25 1 1 1 1 1 1 1 1 1 1 1 z>3 3>z>2 1 z>3 1 z>3 1 1 3>z>2 1 3>z>2 1 z>3 1

CVN- Total nitrogen TLS-Oil and grease

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ILC- Waste Water 11

Sample code S1-

COD S2-COD

S1-TOC

S2- TOC

K1-Al K2-Al K1-Cd K2-Cd K1-Cr K2-Cr K1-Fe K2-Fe A1-F- A2-F- A1-Cl- A2-Cl- A1 PO4-P

A2 PO4-P

A1- SO4

A2 SO4

H1- NH4-N

HTD1- CVN

K1-Cr(VI)

TLS 1 F1-phenol

26 1 1 1 1 1 1 1 1 z>3 1 3>z>2 1 1 1 1 1 27 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 3>z>2 28 z>3 1 1 1 z>3 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 z>3 1 1 29 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 30 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 3>z>2 1 3>z>2 1 3>z>2 31 z>3 z>3 1 3>z>2

32 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 133 1 1 134 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 135 1 1 1 1 1 1 1 1 1 1 1 1 1 1 z>3 1 1 1 36 1 1 1 3>z>2 z>3

37 1 1 1 1 1 z>3 3>z>2 3>z>2 1 1 3>z>2 3>z>2 3>z>2 z>3 138 1 1 1 1 1 1 39 1 1 1 1 1 1 1 1 1 1 1 1 z>3 1 3>z>2 1 1 1 1 1 140 1 1 1 1 1 1 1 3>z>2 3>z>2 z>3 z>3 1 41 1 1 1 1 1 1 1 1 11 1 1 1 1 1 42 3>z>2 1 43 1 1 z>3 1 1 1 1 1 1 1 11 z>3 z>3 1 1 z>3 z>3 1 44 z>3 1 1 1 1 1 1 1 1 1 1 z>3 z>3 1 1 z>3 z>3 45 3>z>2 1 1 1 1 1 1 1 46 1 1 1 1 1 1 1 1 1 1 1 1 11 1 1 3>z>2 1 1 1 1 47 1 48 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 3>z>2 1 1 1

CVN- Total nitrogen TLS-Oil and grease

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Annex 6

List of participants

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ILC-Waste Water 11

Participants

Name of institution Address Post Zavod za zdravstveno varstvo Nova Gorica Laboratorij za sanitarno kemijo

Rožna dolina, Vipavska cesta 13 5000 Nova Gorica

JEKO - IN, Čistilna naprava Jesenice Javorniško nabrežje 19 4270 Jesenice Javno komunalno podjetje Žalec d.o.o. - Preskusni laboratorij Nade Cilenšek 5 3310 Žalec ICP Laboratorij za papirništvo - Področje: Monitoring OV Bogišičeva 8 1000 Ljubljana

Zavod za zdravstveno varstvo Celje Ipavčeva 18 3000 Celje Talum d.d. - DE kontrola kakovosti - OE laboratorij Tovarniška ulica 10 2325 Kidričevo

Regionalni tehnološki center Zasavja Grajska pot 10 1430 Hrastnik

Acroni d.o.o., TK - Sektor kemija Cesta Borisa Kidriča 44 4270 Jesenice

Krka, tovarna zdravil d.d., Novo mesto Šmarješka c. 6 8501 Novo mesto Zavod za zdravstveno varstvo Novo mesto, Sanitarno kem. laboratorij Mej vrti 5 8000 Novo mesto Kom. stan. družba d.o.o., Ajdovščina Laboratorij centralne ČN Ajdovščina Goriška 23/b 5270 Ajdovščina Vipap Videm Krško, Laboratorij vhodne kontrole in ekologije Tovarniška 18 8270 Krško

Rudnik Žirovski vrh Todraž 1 4224 Gorenja Vas Erico Velenje, Inštitut za ekološke raziskave, Laboratorij Koroška 58 3320 Velenje

Rudnik Mežica, Korlab d.o.o. Polena 6 2392 Mežica

Gorenje, d.d. - Analizna kemija Partizanska 12 3503 Velenje

Slovenske Železarne, Metal Ravne d.o.o. Koroška cesta 14 2390 Ravne na Koroškem

TDR - Metalurgija d.d. - Kemijski laboratorij Tovarniška cesta 51 2342 Ruše Zavod za zdravstveno varstvo - Inštitut za varstvo okolja, Maribor Prvomajska 1 2000 Maribor Javno podjetje Vodovod - Kanalizacija, TIS - Služba za nadzor kakovosti pitne in odpadne vode Vodovodna cesta 90 1000 Ljubljana Komunala Novo mesto d.o.o. Šmarješka c. 10 8000 Novo mesto

Ekoinženiring d.o.o. Koroška c. 14 2390 Ravne na Koroškem

TKI Hrastnik Za Savo 6 1430 Hrastnik Ikema d.o.o. Orešje 4 2250 Ptuj Iskraemeco, Laboratorijski center Savska loka 4 4000 Kranj

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ILC-Waste Water 11

Participants

Name of institution Address Post

Zavod za zdravstveno varstvo Koper, Oddelek za sanitarno kemijo Verdijeva ulica 11 6000 Koper Komunalno podjetje Ptuj, Laboratorij za izvajanje obratovalnega monitoringa odpadnih vod Puhova ul. 10 2250 Ptuj Zavod za zdravstveno varstvo Kranj Sanitarno kemijski laboratorij Gosposvetska ulica 12 4000 Kranj

Javno podjetje Snaga Povšetova ulica 6 1000 Ljubljana Unior d.d. Zreče Kovaška cesta 10 3214 Zreče Tehnološki laboratorij za pitne in odpadne vode Komunalnega podjetja Velenje Koroška cesta 37b 3320 Velenje

Cinkarna Celje Kidričeva 26 3000 Celje Gozdarski inštitut Slovenije, Laboratorij za gozdno ekologijo Večna pot 2 1000 Ljubljana Univerza v Mariboru, Fakulteta za strojništvo, Oddelek za tekstilstvo Laboratorij za barvanje, barvno metriko in ekologijo plemenitenja Smetanova ulica 17 2000 Maribor LEK, tovarna farmacevtskih in kemičnih izdelkov Enota PFU Kolodvorska 27 1234 Mengeš Inštitut Jožef Stefan, Ljubljana Jamova 39 1000 Ljubljana Danfoss Compressors-Kemijski laboratorij Heroja Starihe 24 8340 Črnomelj EIMV Ekološki laboratorij Hajdrihova 2 1000 Ljubljana Štore-steel. Kemijski laboratorij Železarska cesta 3 3220 Štore Nigrad d.d., Oddelek za laboratorijske preiskave Zagrebška cesta 30 2000 Maribor Melamin d.d. Kočevje, Ekološko analitski laboratorij Tomšičeva 9 1330 Kočevje INA, d.d, SSR II, Centralni ispitni laboratorij Lovinčičeva b.b 1000 Zagreb, Croatia Zagreb Institute of Public Health Mirogojska 16 10000 Zagreb, Croatia Hajdu-Bihar Megyei NTSZ Boszormenyi ut. 146 II-4032 Pf. 21, Hungary Fejer Megyei NISZ Soil Protection Laboratory Orszag ut. 23 2481 Velence, Hungary INA-Rafinerija nafte Rijeka, Kontrola Kvalitete Urinj b.b. 51221 Kostrena, HrvatskaINA Industrija nafte, d.d. SD Rafinerije I veleprodaja maziva, Rijeka, Laboratorij Milutina Barača br. 26 51000 Rijeka, Hrvatska

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Documents

ILC-WASTE WATER 11 - ki.si · In ILC-Waste Water 11 participated 47 laboratories from Slovenia and from abroad. ... P i x x i p 1 1 (4) ... A1 F-mg/l 1,76 0,13 21 1,74 0,0920