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This report is only for the use of participating laboratories
Proficiency TestingFINAL REPORT
Food Microbiology
food Non
2016
Proficiency Testing Provider Certificate Number 3189-02.
© IFM Quality Services Pty Ltd
This report is only for the use of participating laboratories
roficiency TestingFINAL REPORT
Food Microbiology Scheme
food Non-pathogens16P6-NP
2016 August
Program Coordinator: Ingrid FlemmingIFM Quality Services Pty LtdPO Box 877 IngleburnNSW 2565 AustraliaTel: +61 (0)2 9618 3311Fax: +61 (0)2 9618 3355Samples Dispatched: 08 Results Due: 05 September 2016Report Issued: 23 September 2016
Page: 1
roficiency Testing
Food Microbiology
pathogens
Program Coordinator: Ingrid Flemming IFM Quality Services Pty Ltd PO Box 877 Ingleburn NSW 2565 Australia Tel: +61 (0)2 9618 3311 Fax: +61 (0)2 9618 3355 Samples Dispatched: 08 August 2016 Results Due: 05 September 2016
23 September 2016
Page: 2 © IFM Quality Services Pty Ltd
This report is only for the use of participating laboratories
Operational Summary
Number of rounds and frequency of testing The Food Microbiology Scheme consists of 4 rounds. In this round, laboratories received 6 samples representing foods from a production facility. This report covers results for the three “food non-pathogen” samples.
Sample presentation and reconstitution Samples were presented in plastic sachets, labeled A, B and C. Samples resembled actual foods, and were blended from naturally and artificially contaminated materials. Participants were requested to treat them as “ready to test”.
Assurance of sample integrity Samples were prepared by the Support Division of IFM Quality Services. Homogeneity tests were conducted by the Testing Division of IFM Quality Services. On production, each sample batch was subjected to a homogeneity evaluation. Following initial acceptance, retained samples underwent regular monitoring to confirm ongoing homogeneity and fitness for purpose. All required homogeneity criteria were met.
Method of dispatch All samples were sent via express courier. Insulated packaging and a cooling agent were used to assist in protection against temperature fluctuations during transit.
Assessment procedure Please refer to IFM’s Policies on the assessment of microbiological PTP results:
http://www.ifmqs.com.au/proficiency/references/QPL001-04_Assessment_of_Microbiological_PT_Results.pdf
Participants with outliers are advised to consider their measurement uncertainty and customer expectations before determining whether corrective actions are necessary.
Dispute procedure Participants wishing to dispute their assessment, or appeal an evaluation on other grounds should submit their appeal in writing to the program coordinator.
Please refer to http://www.ifmqs.com.au/ifm_terms_and_conditions.htm for the detailed policy.
Confidentiality The identity of participants and any identifying information supplied by participants is treated as confidential. Appropriate policies and procedures have been put into place to ensure this confidentiality is maintained. Please refer to http://www.ifmqs.com.au/ifm_policy_on_confidentiality.htm for the detailed policy.
Test instructions Instructions applicable to this testing round may be found at:
http://www.ifmqs.com.au/proficiency/instructions/16P6NP_Instructions.pdf
Page: 3 © IFM Quality Services Pty Ltd
This report is only for the use of participating laboratories
Individual results Should individual test results be required, these will be provided upon request.
Available Tests Tests Assessment and Acceptance Criteria
Enumeration (cfu/g) Bacillus cereus Coliform E. coli Enterobacteriaceae Thermotolerant (Faecal) Coliform Lactic acid bacteria Mould Plate Total Anaerobic Yeast
For enumerative tests, robust statistics are applied in order to determine a Z-score for each result. Acceptable Z-scores are |Z|<3. Whenever possible non-numeric results are assessed by applying simple pass/fail assessments without issue of Z-scores.
Variations to the normal assessment procedure will be detailed in the discussion.
Participation Summary 82 organisations enrolled 77 organisations participated 227 sets of results were submitted 3541 individual test results were received 3527 results were assessed 14 results were not assessed 140 results were assessed as outliers
Sample Content
Sample A RM Number Organism Name (IFM Number) RM1966 Lactobacillus fermentum (1514) RM2298 Candida utilis (0016) RM2315 Enterobacter aerogenes (2201) RM2328 Escherichia coli (2005) RM2352 Lactobacillus casei (1504) RM2411 Bacillus cereus (1604)
Page: 4 © IFM Quality Services Pty Ltd
This report is only for the use of participating laboratories
Duplicate Samples B and C RM Number Organism Name (IFM Number) RM1925 Klebsiella pneumoniae (2703) RM2299 Aspergillus niger (0019) RM2326 Bacillus cereus (1604) RM2328 Escherichia coli (2005)
Discussion Mould Count - Sample A
Sample A was not inoculated with mould. However, a low level of mould was present in the raw ingredients.
Lactic acid bacteria and Yeast Count – Duplicate Samples B and C
5 participants incorrectly enumerated lactic acid bacteria in both samples B and C. In total, 6 participants enumerated lactic acid bacteria in sample B and 7 in sample C.
4 participants incorrectly enumerated yeast in both samples B and C. No participant reported a false positive for both lactic acid bacteria and yeast across these samples. Monitoring of the sample by IFM’s laboratory confirmed the level of both lactic acid bacteria and yeast to be <10 cfu/g.
Page: 5 © IFM Quality Services Pty Ltd
This report is only for the use of participating laboratories
16P6NP Food Non PathogensBacillus cereus count
Sample A (cfu/g) - Log ValuesNumber of Results Received 70Number of Results Analysed 54Quartile 1 2.1538Quartile 3 2.4771IQR 0.3233NIQR 0.2397Median 2.3010Acceptable High:Median + (3*NIQR) 3.0200Acceptable Low:Median - (3*NIQR) 1.5820Statistically Acceptable Range 1.43800
5
10
15
20
25
30
<1.0
0
<2.0
0
Mor
e
1.65
4
1.81
6
1.97
8
2.13
9
2.30
1
2.46
3
2.62
4
2.78
6
2.94
8
Mor
e
BelowDetection
Limit
Result (cfu/g) - Log Values
Freq
uenc
y
16P6NP Food Non PathogensBacillus cereus count
Sample A
Non-numeric
Excluded
Included
Results
Bacillus cereus Count Sample A (cfu/g)
Page: 6 © IFM Quality Services Pty Ltd
This report is only for the use of participating laboratories
16P6NP Food Non PathogensBacillus cereus count
Sample B (cfu/g) - Raw ValuesNumber of Results Received 72Number of Results Analysed 21Quartile 1 23.0000Quartile 3 120.0000IQR 97.0000NIQR 71.9061Median 50.0000Acceptable High:Median + (3*NIQR) 265.7183Acceptable Low:Median - (3*NIQR) -165.7183Statistically Acceptable Range 431.43660
5
10
15
20
25
30
<10
<100
Mor
e
1.5
50.
98.5
147.
195.
5
244.
Mor
e
BelowDetection
Limit
Result (cfu/g) - Raw Values
Freq
uenc
y
16P6NP Food Non PathogensBacillus cereus count
Sample B
Non-numeric
Excluded
Included
Results
Bacillus cereus Count Sample B (cfu/g)
Page: 7 © IFM Quality Services Pty Ltd
This report is only for the use of participating laboratories
16P6NP Food Non PathogensBacillus cereus count
Sample C (cfu/g) - Log ValuesNumber of Results Received 72Number of Results Analysed 21Quartile 1 1.6990Quartile 3 2.3802IQR 0.6812NIQR 0.5050Median 2.0000Acceptable High:Median + (3*NIQR) 3.5150Acceptable Low:Median - (3*NIQR) 0.4850Statistically Acceptable Range 3.03000
5
10
15
20
25
<1.0
0
<2.0
0
Mor
e
0.63
8
0.97
8
1.31
9
1.65
9 2.
2.34
1
2.68
1
3.02
2
3.36
2
Mor
e
BelowDetection
Limit
Result (cfu/g) - Log Values
Freq
uenc
y
16P6NP Food Non PathogensBacillus cereus count
Sample C
Non-numeric
Excluded
Included
Results
Bacillus cereus Count Sample C (cfu/g)
Page: 8 © IFM Quality Services Pty Ltd
This report is only for the use of participating laboratories
16P6NP Food Non PathogensColiform Count
Sample A (cfu/g) - Log ValuesNumber of Results Received 189Number of Results Analysed 98Quartile 1 3.2175Quartile 3 3.6968IQR 0.4793NIQR 0.3553Median 3.5441Acceptable High:Median + (3*NIQR) 4.6100Acceptable Low:Median - (3*NIQR) 2.4781Statistically Acceptable Range 2.1319
0
10
20
30
40
50
60
70
80
2.58
5
2.82
5
3.06
5
3.30
4
3.54
4
3.78
4
4.02
3
4.26
3
4.50
3
Mor
e
>2.4
78
>4.6
1
Mor
e
Pres
ent
Abse
nt
Result (cfu/g) - Log Values AboveDetection
Limit
Detection
Freq
uenc
y
16P6NP Food Non PathogensColiform Count
Sample A
Non-numeric
Excluded
Included
Results
Coliform Count Sample A (cfu/g)
Page: 9 © IFM Quality Services Pty Ltd
This report is only for the use of participating laboratories
16P6NP Food Non PathogensColiform Count
Sample B (cfu/g) - Log ValuesNumber of Results Received 192Number of Results Analysed 110Quartile 1 2.6628Quartile 3 3.0350IQR 0.3723NIQR 0.2760Median 2.8195Acceptable High:Median + (3*NIQR) 3.6474Acceptable Low:Median - (3*NIQR) 1.9916Statistically Acceptable Range 1.6558
0
10
20
30
40
50
60
2.07
5
2.26
1
2.44
7
2.63
3
2.82
3.00
6
3.19
2
3.37
8
3.56
4
Mor
e
>1.9
92
>3.6
47
Mor
e
Pres
ent
Abse
nt
Result (cfu/g) - Log Values AboveDetection
Limit
Detection
Freq
uenc
y
16P6NP Food Non PathogensColiform Count
Sample B
Non-numeric
Excluded
Included
Results
Coliform Count Sample B (cfu/g)
Page: 10 © IFM Quality Services Pty Ltd
This report is only for the use of participating laboratories
16P6NP Food Non PathogensColiform Count
Sample C (cfu/g) - Log ValuesNumber of Results Received 191Number of Results Analysed 112Quartile 1 2.6628Quartile 3 2.9934IQR 0.3307NIQR 0.2451Median 2.7924Acceptable High:Median + (3*NIQR) 3.5278Acceptable Low:Median - (3*NIQR) 2.0570Statistically Acceptable Range 1.4708
0
10
20
30
40
50
60
70
2.13
1
2.29
6
2.46
2
2.62
7
2.79
2
2.95
8
3.12
3
3.28
8
3.45
4
Mor
e
>2.0
57
>3.5
28
Mor
e
Pres
ent
Abse
nt
Result (cfu/g) - Log Values AboveDetection
Limit
Detection
Freq
uenc
y
16P6NP Food Non PathogensColiform Count
Sample C
Non-numeric
Excluded
Included
Results
Coliform Count Sample C (cfu/g)
Page: 11 © IFM Quality Services Pty Ltd
This report is only for the use of participating laboratories
16P6NP Food Non PathogensE. coli Count
Sample A (cfu/g) - Log ValuesNumber of Results Received 160Number of Results Analysed 90Quartile 1 2.6556Quartile 3 3.1055IQR 0.4499NIQR 0.3335Median 2.9542Acceptable High:Median + (3*NIQR) 3.9548Acceptable Low:Median - (3*NIQR) 1.9537Statistically Acceptable Range 2.0010
0
5
10
15
20
25
30
35
40
<1.0
0
<2.0
0
Mor
e
2.05
4
2.27
9
2.50
4
2.72
9
2.95
4
3.17
9
3.40
4
3.62
9
3.85
4
Mor
e
>1.9
54
>3.9
55
Mor
e
Pres
ent
Abse
nt
BelowDetection
Limit
Result (cfu/g) - Log Values AboveDetection
Limit
Detection
Freq
uenc
y
16P6NP Food Non PathogensE. coli Count
Sample A
Non-numeric
Excluded
Included
Results
E. coli Count Sample A (cfu/g)
Page: 12 © IFM Quality Services Pty Ltd
This report is only for the use of participating laboratories
16P6NP Food Non PathogensE. coli Count
Sample B (cfu/g) - Log ValuesNumber of Results Received 157Number of Results Analysed 83Quartile 1 1.9661Quartile 3 2.6628IQR 0.6966NIQR 0.5164Median 2.3617Acceptable High:Median + (3*NIQR) 3.9109Acceptable Low:Median - (3*NIQR) 0.8125Statistically Acceptable Range 3.0984
0
10
20
30
40
50
60
<1.0
0
<2.0
0
Mor
e
0.96
8
1.31
7
1.66
5
2.01
3
2.36
2
2.71
3.05
8
3.40
7
3.75
5
Mor
e
>0.8
13
>3.9
11
Mor
e
Pres
ent
Abse
nt
BelowDetection
Limit
Result (cfu/g) - Log Values AboveDetection
Limit
Detection
Freq
uenc
y
16P6NP Food Non PathogensE. coli Count
Sample B
Non-numeric
Excluded
Included
Results
E. coli Count Sample B (cfu/g)
Page: 13 © IFM Quality Services Pty Ltd
This report is only for the use of participating laboratories
16P6NP Food Non PathogensE. coli Count
Sample C (cfu/g) - Log ValuesNumber of Results Received 158Number of Results Analysed 81Quartile 1 2.0000Quartile 3 2.6628IQR 0.6628NIQR 0.4913Median 2.3802Acceptable High:Median + (3*NIQR) 3.8541Acceptable Low:Median - (3*NIQR) 0.9063Statistically Acceptable Range 2.9478
0
5
10
15
20
25
30
35
40
45
50
<1.0
0
<2.0
0
Mor
e
1.05
5
1.38
6
1.71
7
2.04
9
2.38
2.71
2
3.04
3
3.37
4
3.70
6
Mor
e
Pres
ent
Abse
nt
BelowDetection
Limit
Result (cfu/g) - Log Values Detection
Freq
uenc
y
16P6NP Food Non PathogensE. coli Count
Sample C
Non-numeric
Excluded
Included
Results
E. coli Count Sample C (cfu/g)
Page: 14 © IFM Quality Services Pty Ltd
This report is only for the use of participating laboratories
16P6NP Food Non PathogensEnterobacteriaceae Count
Sample A (cfu/g) - Log ValuesNumber of Results Received 104Number of Results Analysed 72Quartile 1 3.4090Quartile 3 3.6924IQR 0.2834NIQR 0.2101Median 3.5533Acceptable High:Median + (3*NIQR) 4.1835Acceptable Low:Median - (3*NIQR) 2.9230Statistically Acceptable Range 1.2605
0
5
10
15
20
25
30
2.98
6
3.12
8
3.27
3.41
2
3.55
3
3.69
5
3.83
7
3.97
8
4.12
Mor
e
Result (cfu/g) - Log Values
Freq
uenc
y
16P6NP Food Non PathogensEnterobacteriaceae Count
Sample A
Excluded
Included
Results
Enterobacteriaceae Count Sample A (cfu/g)
Page: 15 © IFM Quality Services Pty Ltd
This report is only for the use of participating laboratories
16P6NP Food Non PathogensEnterobacteriaceae Count
Sample B (cfu/g) - Log ValuesNumber of Results Received 104Number of Results Analysed 73Quartile 1 2.6990Quartile 3 2.9590IQR 0.2601NIQR 0.1928Median 2.8195Acceptable High:Median + (3*NIQR) 3.3979Acceptable Low:Median - (3*NIQR) 2.2412Statistically Acceptable Range 1.1567
0
5
10
15
20
25
30
2.29
9
2.42
9
2.55
9
2.69
2.82
2.95
3.08
3.21
3.34
Mor
e
Result (cfu/g) - Log Values
Freq
uenc
y
16P6NP Food Non PathogensEnterobacteriaceae Count
Sample B
Excluded
Included
Results
Enterobacteriaceae Count Sample B (cfu/g)
Page: 16 © IFM Quality Services Pty Ltd
This report is only for the use of participating laboratories
16P6NP Food Non PathogensEnterobacteriaceae Count
Sample C (cfu/g) - Log ValuesNumber of Results Received 104Number of Results Analysed 73Quartile 1 2.6812Quartile 3 2.9294IQR 0.2482NIQR 0.1840Median 2.7993Acceptable High:Median + (3*NIQR) 3.3513Acceptable Low:Median - (3*NIQR) 2.2474Statistically Acceptable Range 1.1038
0
5
10
15
20
25
30
2.30
3
2.42
7
2.55
1
2.67
5
2.79
9
2.92
3
3.04
8
3.17
2
3.29
6
Mor
e
Result (cfu/g) - Log Values
Freq
uenc
y
16P6NP Food Non PathogensEnterobacteriaceae Count
Sample C
Excluded
Included
Results
Enterobacteriaceae Count Sample C (cfu/g)
Page: 17 © IFM Quality Services Pty Ltd
This report is only for the use of participating laboratories
16P6NP Food Non PathogensThermotolerant (Faecal) Coliform Count
Sample A (cfu/g) - Log ValuesNumber of Results Received 65Number of Results Analysed 37Quartile 1 2.6628Quartile 3 3.3802IQR 0.7175NIQR 0.5318Median 3.0414Acceptable High:Median + (3*NIQR) 4.6369Acceptable Low:Median - (3*NIQR) 1.4458Statistically Acceptable Range 3.1911
0
2
4
6
8
10
12
14
16
18
20
1.60
6
1.96
5
2.32
4
2.68
3
3.04
1
3.4
3.75
9
4.11
8
4.47
6
Mor
e
>1.4
46
>4.6
37
Mor
e
Pres
ent
Abse
nt
Result (cfu/g) - Log Values AboveDetection
Limit
Detection
Freq
uenc
y
16P6NP Food Non PathogensThermotolerant (Faecal) Coliform Count
Sample A
Non-numeric
Excluded
Included
Results
Thermotolerant (Faecal) Coliform Count Sample A (cfu/g)
Page: 18 © IFM Quality Services Pty Ltd
This report is only for the use of participating laboratories
16P6NP Food Non PathogensThermotolerant (Faecal) Coliform Count
Sample B (cfu/g) - Log ValuesNumber of Results Received 66Number of Results Analysed 44Quartile 1 2.3802Quartile 3 2.8648IQR 0.4846NIQR 0.3592Median 2.6628Acceptable High:Median + (3*NIQR) 3.7405Acceptable Low:Median - (3*NIQR) 1.5851Statistically Acceptable Range 2.1554
0
5
10
15
20
25
30
1.69
4
1.93
6
2.17
8
2.42
2.66
3
2.90
5
3.14
7
3.39
3.63
2
Mor
e
>1.5
85
>3.7
4
Mor
e
Pres
ent
Abse
nt
Result (cfu/g) - Log Values AboveDetection
Limit
Detection
Freq
uenc
y
16P6NP Food Non PathogensThermotolerant (Faecal) Coliform Count
Sample B
Non-numeric
Excluded
Included
Results
Thermotolerant (Faecal) Coliform Count Sample B (cfu/g)
Page: 19 © IFM Quality Services Pty Ltd
This report is only for the use of participating laboratories
16P6NP Food Non PathogensThermotolerant (Faecal) Coliform Count
Sample C (cfu/g) - Log ValuesNumber of Results Received 67Number of Results Analysed 44Quartile 1 2.3802Quartile 3 2.8209IQR 0.4406NIQR 0.3267Median 2.6628Acceptable High:Median + (3*NIQR) 3.6427Acceptable Low:Median - (3*NIQR) 1.6828Statistically Acceptable Range 1.9599
0
5
10
15
20
25
30
1.78
1
2.00
2
2.22
2
2.44
2
2.66
3
2.88
3
3.10
3
3.32
4
3.54
4
Mor
e
>1.6
83
>3.6
43
Mor
e
Pres
ent
Abse
nt
Result (cfu/g) - Log Values AboveDetection
Limit
Detection
Freq
uenc
y
16P6NP Food Non PathogensThermotolerant (Faecal) Coliform Count
Sample C
Non-numeric
Excluded
Included
Results
Thermotolerant (Faecal) Coliform Count Sample C (cfu/g)
Page: 20 © IFM Quality Services Pty Ltd
This report is only for the use of participating laboratories
16P6NP Food Non PathogensLactic acid bacteria Count
Sample A (cfu/g) - Log ValuesNumber of Results Received 38Number of Results Analysed 36Quartile 1 4.9754Quartile 3 5.3222IQR 0.3468NIQR 0.2571Median 5.1139Acceptable High:Median + (3*NIQR) 5.8852Acceptable Low:Median - (3*NIQR) 4.3427Statistically Acceptable Range 1.5424
0
2
4
6
8
10
12
4.42
4.59
4
4.76
7
4.94
1
5.11
4
5.28
7
5.46
1
5.63
4
5.80
8
Mor
e
Result (cfu/g) - Log Values
Freq
uenc
y
16P6NP Food Non PathogensLactic acid bacteria Count
Sample A
Excluded
Included
Results
Lactic acid bacteria Count Sample A (cfu/g)
Page: 21 © IFM Quality Services Pty Ltd
This report is only for the use of participating laboratories
0
5
10
15
20
25
30
35
Below Detection Limit False Positive NotAssessed
16P6NP Food Non PathogensLactic acid bacteria Count
Sample B (cfu/g)
Freq
uenc
y
Excluded
Included
Results
Lactic acid bacteria Count Sample B (cfu/g)
Page: 22 © IFM Quality Services Pty Ltd
This report is only for the use of participating laboratories
0
5
10
15
20
25
30
35
Below Detection Limit False Positive NotAssessed
16P6NP Food Non PathogensLactic acid bacteria Count
Sample C (cfu/g)
Freq
uenc
y
Excluded
Included
Results
Lactic acid bacteria Count Sample C (cfu/g)
Page: 23 © IFM Quality Services Pty Ltd
This report is only for the use of participating laboratories
16P6NP Food Non PathogensMould Count
Sample A (cfu/g) - Raw ValuesNumber of Results Received 179Number of Results Analysed 34Quartile 1 10.0000Quartile 3 72.5000IQR 62.5000NIQR 46.3313Median 22.5000Acceptable High:Median + (3*NIQR) 161.4938Acceptable Low:Median - (3*NIQR) -116.4938Statistically Acceptable Range 277.98750
10
20
30
40
50
60
70
80
90
<10
<100
Mor
e
22.5
53.7
5
85.
116.
25
147.
5
Mor
e
BelowDetection
Limit
Result (cfu/g) - Raw Values
Freq
uenc
y
16P6NP Food Non PathogensMould Count
Sample A
Non-numeric
Excluded
Included
Results
Mould Count Sample A (cfu/g)
Page: 24 © IFM Quality Services Pty Ltd
This report is only for the use of participating laboratories
16P6NP Food Non PathogensMould Count
Sample B (cfu/g) - Log ValuesNumber of Results Received 178Number of Results Analysed 111Quartile 1 2.1847Quartile 3 2.4771IQR 0.2924NIQR 0.2168Median 2.3424Acceptable High:Median + (3*NIQR) 2.9928Acceptable Low:Median - (3*NIQR) 1.6921Statistically Acceptable Range 1.30070
10
20
30
40
50
60
<1.0
0
<2.0
0
Mor
e
1.75
8
1.90
4
2.05
2.19
6
2.34
2
2.48
9
2.63
5
2.78
1
2.92
7
Mor
e
BelowDetection
Limit
Result (cfu/g) - Log Values
Freq
uenc
y
16P6NP Food Non PathogensMould Count
Sample B
Non-numeric
Excluded
Included
Results
Mould Count Sample B (cfu/g)
Page: 25 © IFM Quality Services Pty Ltd
This report is only for the use of participating laboratories
16P6NP Food Non PathogensMould Count
Sample C (cfu/g) - Log ValuesNumber of Results Received 177Number of Results Analysed 112Quartile 1 2.2195Quartile 3 2.4771IQR 0.2577NIQR 0.1910Median 2.3617Acceptable High:Median + (3*NIQR) 2.9348Acceptable Low:Median - (3*NIQR) 1.7887Statistically Acceptable Range 1.14610
10
20
30
40
50
60
<1.0
0
<2.0
0
Mor
e
1.84
6
1.97
5
2.10
4
2.23
3
2.36
2
2.49
1
2.61
9
2.74
8
2.87
7
Mor
e
BelowDetection
Limit
Result (cfu/g) - Log Values
Freq
uenc
y
16P6NP Food Non PathogensMould Count
Sample C
Non-numeric
Excluded
Included
Results
Mould Count Sample C (cfu/g)
Page: 26 © IFM Quality Services Pty Ltd
This report is only for the use of participating laboratories
16P6NP Food Non PathogensPlate Count
Sample A (cfu/g) - Log ValuesNumber of Results Received 174Number of Results Analysed 122Quartile 1 4.2672Quartile 3 5.1761IQR 0.9089NIQR 0.6738Median 4.9845Acceptable High:Median + (3*NIQR) 7.0059Acceptable Low:Median - (3*NIQR) 2.9632Statistically Acceptable Range 4.0427
0
10
20
30
40
50
60
70
80
90
100
3.16
7
3.62
1
4.07
6
4.53
4.98
5
5.43
9
5.89
3
6.34
8
6.80
2
Mor
e
Result (cfu/g) - Log Values
Freq
uenc
y
16P6NP Food Non PathogensPlate CountSample A
Excluded
Included
Results
Plate Count Sample A (cfu/g)
Page: 27 © IFM Quality Services Pty Ltd
This report is only for the use of participating laboratories
16P6NP Food Non PathogensPlate Count
Sample B (cfu/g) - Log ValuesNumber of Results Received 174Number of Results Analysed 124Quartile 1 3.0414Quartile 3 3.3064IQR 0.2650NIQR 0.1965Median 3.1761Acceptable High:Median + (3*NIQR) 3.7655Acceptable Low:Median - (3*NIQR) 2.5867Statistically Acceptable Range 1.1788
0
10
20
30
40
50
60
2.64
6
2.77
9
2.91
1
3.04
4
3.17
6
3.30
9
3.44
1
3.57
4
3.70
6
Mor
e
Result (cfu/g) - Log Values
Freq
uenc
y
16P6NP Food Non PathogensPlate CountSample B
Excluded
Included
Results
Plate Count Sample B (cfu/g)
Page: 28 © IFM Quality Services Pty Ltd
This report is only for the use of participating laboratories
16P6NP Food Non PathogensPlate Count
Sample C (cfu/g) - Log ValuesNumber of Results Received 173Number of Results Analysed 123Quartile 1 3.0512Quartile 3 3.3174IQR 0.2663NIQR 0.1974Median 3.2304Acceptable High:Median + (3*NIQR) 3.8226Acceptable Low:Median - (3*NIQR) 2.6383Statistically Acceptable Range 1.1844
0
10
20
30
40
50
60
2.69
8
2.83
1
2.96
4
3.09
7
3.23
3.36
4
3.49
7
3.63
3.76
3
Mor
e
Result (cfu/g) - Log Values
Freq
uenc
y
16P6NP Food Non PathogensPlate CountSample C
Excluded
Included
Results
Plate Count Sample C (cfu/g)
Page: 29 © IFM Quality Services Pty Ltd
This report is only for the use of participating laboratories
16P6NP Food Non PathogensTotal Anaerobic Count
Sample A (cfu/g) - Log ValuesNumber of Results Received 21Number of Results Analysed 21Quartile 1 4.8633Quartile 3 5.0414IQR 0.1781NIQR 0.1320Median 4.9912Acceptable High:Median + (3*NIQR) 5.3872Acceptable Low:Median - (3*NIQR) 4.5952Statistically Acceptable Range 0.7920
0
1
2
3
4
5
6
7
4.63
5
4.72
4
4.81
3
4.90
2
4.99
1
5.08
5.16
9
5.25
8
5.34
7
Mor
e
Result (cfu/g) - Log Values
Freq
uenc
y
16P6NP Food Non PathogensTotal Anaerobic Count
Sample A
Excluded
Included
Results
Total Anaerobic Count Sample A (cfu/g)
Page: 30 © IFM Quality Services Pty Ltd
This report is only for the use of participating laboratories
16P6NP Food Non PathogensTotal Anaerobic Count
Sample B (cfu/g) - Log ValuesNumber of Results Received 21Number of Results Analysed 21Quartile 1 2.9590Quartile 3 3.1761IQR 0.2170NIQR 0.1609Median 3.0414Acceptable High:Median + (3*NIQR) 3.5241Acceptable Low:Median - (3*NIQR) 2.5587Statistically Acceptable Range 0.9654
0
1
2
3
4
5
6
7
2.60
7
2.71
6
2.82
4
2.93
3
3.04
1
3.15
3.25
8
3.36
7
3.47
5
Mor
e
Result (cfu/g) - Log Values
Freq
uenc
y
16P6NP Food Non PathogensTotal Anaerobic Count
Sample B
Excluded
Included
Results
Total Anaerobic Count Sample B (cfu/g)
Page: 31 © IFM Quality Services Pty Ltd
This report is only for the use of participating laboratories
16P6NP Food Non PathogensTotal Anaerobic Count
Sample C (cfu/g) - Log ValuesNumber of Results Received 21Number of Results Analysed 21Quartile 1 2.8921Quartile 3 3.1139IQR 0.2218NIQR 0.1645Median 3.0000Acceptable High:Median + (3*NIQR) 3.4934Acceptable Low:Median - (3*NIQR) 2.5066Statistically Acceptable Range 0.9867
0
1
2
3
4
5
6
7
8
2.55
6
2.66
7
2.77
8
2.88
9 3.
3.11
1
3.22
2
3.33
3
3.44
4
Mor
e
Result (cfu/g) - Log Values
Freq
uenc
y
16P6NP Food Non PathogensTotal Anaerobic Count
Sample C
Excluded
Included
Results
Total Anaerobic Count Sample C (cfu/g)
Page: 32 © IFM Quality Services Pty Ltd
This report is only for the use of participating laboratories
16P6NP Food Non PathogensYeast Count
Sample A (cfu/g) - Log ValuesNumber of Results Received 180Number of Results Analysed 110Quartile 1 3.0792Quartile 3 3.3979IQR 0.3188NIQR 0.2363Median 3.2304Acceptable High:Median + (3*NIQR) 3.9393Acceptable Low:Median - (3*NIQR) 2.5216Statistically Acceptable Range 1.41780
10
20
30
40
50
60
70
<1.0
0
<2.0
0
Mor
e
2.59
3
2.75
2
2.91
2
3.07
1
3.23
3.39
3.54
9
3.70
9
3.86
8
Mor
e
BelowDetection
Limit
Result (cfu/g) - Log Values
Freq
uenc
y
16P6NP Food Non PathogensYeast Count
Sample A
Non-numeric
Excluded
Included
Results
Yeast Count Sample A (cfu/g)
Page: 33 © IFM Quality Services Pty Ltd
This report is only for the use of participating laboratories
0
20
40
60
80
100
120
140
160
180
Below Detection Limit False Positive NotAssessed
16P6NP Food Non PathogensYeast Count
Sample B (cfu/g)
Freq
uenc
y
Excluded
Included
Results
Yeast Count Sample B (cfu/g)
Page: 34 © IFM Quality Services Pty Ltd
This report is only for the use of participating laboratories
0
20
40
60
80
100
120
140
160
180
Below Detection Limit False Positive NotAssessed
16P6NP Food Non PathogensYeast Count
Sample C (cfu/g)
Freq
uenc
y
Excluded
Included
Results
Yeast Count Sample C (cfu/g)
Page: 35 © IFM Quality Services Pty Ltd
This report is only for the use of participating laboratories
�End of Report�