.indd


1953 ( 28 ) 60


1958 ( 33 ) JWSA K 101(
) 1959 ( 34 ) JIS K 6762( )
(2012 )

JPS-04
1993 ( 5 )7 JIS K 6762 1997 (
9 )9
1998 ( 10 )12 1999



ISO ISO 44272007 2012
24 JIS K6762 2013 25
PE



1. PE ------------------------------------------------------------------------------------- 1 1.1 ---------------------------------------------------------------- 1 1.2 ---------------------------------------------------------------- 2 1.3 -------------------------------------------------------------------- 3 1.4 --------------------------------------------------------------------------------------- 4
1. ---------------------------------------------------------------------------------------------------- 7 2. PE ------------------------------------------------------------------------------------- 9 2.1 -------------------------------------------------------------------------- 9 2.2 -------------------------------------------------------------------------- 9 1) ------------------------------------------------------------------------------------------------------ 9 2) MRS ---------------------------------------------------------------------------------------------- 11 3) 1.0MPa ------------------------------------- 12 4) --------------------------------------------------------------- 13 5) ------------------------------------------------------------------------------------------------------ 14 6) ------------------------------------------------------------------------------------------------------ 16
7) ---------------------------------------------------------------------------- 17 8) ------------------------------------------------------------------------------- 19 2.3 ----------------------------------------------------------------------- 20 1) ------------------------------------------------------------------------------------------------------ 20 2) --------------------------------------------------------------------------------------------------- 20 3) -------------------------------------------------------------------------------------------- 21 3. ----------------------------------------------------------------------------------------------------------- 23 4. ----------------------------------------------------------------------------------------------------------- 27 5. ------------------------------------------------------------------------------------------------------- 28 1) ------------------------------------------------------------------------------------------------------------ 28 2) ------------------------------------------------------------------------------------------------------------ 28 6. ------------------------------------------------------------------------------------ 29 1) ------------------------------------------------------------------------------------------------------------ 29 2) --------------------------------------------------------------------------------------------------------- 29 3) ------------------------------------------------------------------------------------------------------ 29 7. ----------------------------------------------------------------------------------------------------------- 31
1. --------------------------------------------------------------------------------------- 33 2. ------------------------------------------------------------------------------------------------------- 34 3. ----------------------------------------------------------------------------------------------------------------- 35 3.1 -------------------------------------------------------------------------------------------------------------- 35 3.2 -------------------------------------------------------------------------------------------------------------- 35 3.3 (JWWA B 116) --------------------------------------------------------------------------------- 35 3.4 ------------------------------------------------------------------------------------------------- 37 3.5 ---------------------------------------------------------------------------------------------- 39 3.6 --------------------------------------------------------------------------------- 41 3.7 ------------------------------------------------------------------------------------------- 43 3.8 ----------------------------------------------------------------------- 43 3.9 ----------------------------------------------------------------------- 43 4. ----------------------------------------------------------------------------------------------------------- 44 5. ------------------------------------------------------------- 48 6. ----------------------------------------------------------------------------------------------------------- 48 7. ----------------------------------------------------------------------------------------------------------- 49 8. ------------------------------------------------------ 50 8.1 ------------------------------------------------ 50 8.2 ------------------------------------------------------------- 50 8.3 ------------------------------------------------------------------------------------------- 50 9. --------------------------------------------------------------------------------------------- 51 10. ---------------------------------------------------------------------------------------------------------- 51 11. ---------------------------------------------------------------------------------------------------------- 51 12. ---------------------------------------------------------------------------------------------------------- 51 13. -------------------------------------------------------------------------------- 53
1. PE --------------------------------------------------------------------------- 54 2. --------------------------------------------------------------------------------------------- 57 2.1 ------------------------------------------------------------------------------------------ 57 2.2 ------------------------------------------------------------------------------------------------- 58 2.3 ----------------------------------------------------------------------------- 62
2.4 ------------------------------------------------------------------------------ 64 2.5 -------------------------------------------------------------------------- 64
3. PE ------------------------------------------------- 65 3.1 -------------------------------------------------------------------------------------------------------------- 65
3.2 ------------------------------------------------------------------------------------------- 65 4. PE ----------------------------------------------------------------- 69 5. ----------------------------------------------------------------------------------------------------------------- 70 6. PE --------------------------------------------------------------------------- 75 7. PE -------------------------------------------------------------------- 76 8. PE ------------------------------------------------------------------------------ 79 9. SI ------------------------------------------------------------------------------------------------ 80
– 1 –

1. PE 0.75MPa PE JIS K 6762 ( PE )

3 PE100
1 ( )
1 W PE50 JIS K 6762 2 W PE80 JIS K 6762 3 W PE40,PE63,PE80,PE100 ISO 4427-2
1 1 2 JIS K 6762:1998
2 3 ISO 161-1 ISO 11922-1 ISO 4065 ISO 4427-2
MRS 2 MRS ISO 1167, ISO 9080 σ lcl ISO 12162
2 :MPa σlcl MRS PE40 4.0 5.0 4.0 PE50 5.0 6.3 5.0 PE63 6.3 8.0 6.3 PE80 8.0 10.0 8.0
PE100 10.0 11.2 10.0

3
a) ± 25 JIS K 7210
20min JIS K 6762 JA
b) 3 JIS K 6812
b) 2.0 2.5 JIS K 6813
c)
1 9.8MPa JIS K 6815-1JIS K 6815-32 19.6MPa
3 20.0MPa 350 JIS K 6815-1JIS K 6815-3
± 3 JIS K 6814
ISO 1167-1ISO 1167-2
JIS S 3200-1

JIS K 6762 JC
1 (TOC) 1mg/L 0.7mg/L
JIS K 6762 JD
a)
R : ( )
b) c) 3
R ×100% F1 F0
4
a) 0.915g/cm3 JIS K 7112 D a) b) c) 0.2~1.4g/10min JIS K 7210
a) 20min JIS K 6762 JA
d) 3 JIS K 6812
d) 2.0 2.5 JIS K 6813
a) 240
JIS K 7151JIS K 6762 JB
a) b) ± 25% c) d)
1.3 1) 1 2) 3) 1


– 4 –
1.4 1 2 3 5 6 7
5 1
90
2.2
25 34.0
90 24.0 0.423
2.0 ±0.4
120
3.2
40 48.0 ±0.25 2.9 6.5 ±0.45 6.05 60 35.0 0.788 90
130
4.05
50 60.0 ±0.30 3.6 8.0 ±0.55 7.45 40 44.0 1.216 110
150
5.45
:mm
1.0 ±0.2 120
16.5 0.143 40
90
1.75
25 34.0
±0.20 3.5
±0.30 3.2
90
50 60.0 ±0.30 1.5 5.0 4.65 40 50.0 0.829 110
150
3.15
:mm

90
0 40 50.6 1.061
a) b) c) d) e) 1m 0.960g/cm3 f)
:mm
1.
PE 10 PE ( 25 3 31 ) 1) 1997 “ ”
JIS S 3200-1 7 8 PE 9
8 ( )






9

S 3200-1
S 3200-2
S 3200-3
S 3200-4
S 3200-5
S 3200-6
S 3200-7
1. PE JIS S 3200-1 2.5MPa 2 2. PE JIS S 3200-7
– 8 –
2) PE 1998 4 1 JIS JIS
3) 3
10 PE S32.6.15 S32.12.12 H9.3.19 H9.3.19 H12.2.23 H12.2.23 S27.6.10 S27.12.4

H11.3.31
– 9 –
2. PE 2.1
11 11
1 2 3 PE50 PE80 PE100
g/cm2 JIS K 6922-2 0.910 0.942 0.942 0.942 % JIS K 7209 0.03 0.03 0.03
MPa JIS K 7161
JIS K 7162
9.8 19.6 20 % 350% MPa JIS K 7171 9.8 19.6 24
MRS MPa ISO 1167-1,2
9080, 12162 5 8 10
W/mk JIS A 1413 0.34 0.46 0.50 0.46 0.50
10-5/ JIS K 7197 16 18 11 13 11 13
J/kgK JIS K 7123 2.3 2.3 2.3
JIS K 7206 90 115 125 JIS K 7216 70 70 70
ESCR ASTM D 1693 1000 1000 1000

P (MPa) σ (MPa) D (mm)
t min (mm)
PE ( ) 12 13

– 10 –
10 0
:MPa
13 20 25 30 40 50
20 3.4 3.1 3.1 2.8 2.8 2.8 25 3.2 2.9 2.9 2.6 2.6 2.6 30 3.0 2.7 2.7 2.4 2.4 2.4 35 2.7 2.5 2.5 2.2 2.2 2.2 40 2.5 2.3 2.3 2.1 2.1 2.1
13 2 ( )
10 0
:MPa
13 20 25 30 40 50
20 4.7 4.4 4.1 3.8 3.7 3.3 25 4.4 4.1 3.8 3.5 3.4 3.1 30 4.1 3.8 3.6 3.3 3.2 2.9 35 3.8 3.5 3.3 3.0 3.0 2.6 40 3.5 3.3 3.0 2.8 2.7 2.4

– 11 –
2 20 50 ( ) 97.5% ( σ lcl ) σ lcl = 5.74 MPa ( σ lcl ISO 1167 ISO 9080
σ lcl MRS (Minimum Required Strength) 2 ( ISO 12162 )
2 MRS 5.0MPa PE50 MRS ( )P
SDR ( ) C D
tmin
0.75MPa 0.25MPa 1.0MPa 14 ISO 1.25
1
10
20
hr
60 80
2

JIS K 6762 JIS
MRS 1 2.4MPa 165 PE50 165 1000 JIS 1000 165
3) 1.0MPa 0.75MPa 0.25MPa 1.0MPa PE 1.0MPa
1 PE50(MRS 5.0MPa)2 PE80(MRS 8.0MPa)3 PE100(MRS 10.0MPa) ISO12162 1.25 Naday 15 16 1.0MPa
P (MPa) σ (MPa) D (mm)
tmin (mm) MRS
C

(mm)
(mm)
(MPa)
4.00
1.40 20 27.0 3.70 1.27 25 34.0 4.65 1.27 30 42.0 5.20 1.13
40 48.0 6.05 1.15 50 60.0 7.45 1.13


(mm)
(mm)
(MPa)
6.40
1.53 20 27.0 2.75 1.45 25 34.0 3.20 1.33 30 42.0 3.70 1.24
40 48.0 4.15 1.21 50 60.0 4.65 1.08
17 3

(mm)
(mm)
(MPa)
8.00
1.78 25 25 2.3 1.62 32 32 3.0 1.66 40 40 3.7 1.63
50 50 4.6 1.62 63 63 5.8 1.62
4) 20 PE 1.0MPa
ISO 13761 18 ISO 13761 2 Line A 19
18 (1 3 ) 20 25 30 35 40
Line A 1.00 0.93 0.87 0.80 0.74 Line B 1.00 0.90 0.81 0.72 0.62 Line C 1.00 0.82 0.65 0.47 0.30
19 (1 3 )
20 25 30 35 40 1.00 0.93 0.87 0.80 0.74
0.75 0.68 0.62 0.55 0.49
MPa
5) 50 PE
Allievi 1m/s 20 3
PE
H (m) V P (m/s) VW (m/s)
K 15 2.03 GPa ρ 15 9797 N/m3
E 15 PE 1 0.22 GPa PE 2 0.84 GPa PE 3 1.30 GPa 3.33 GPa 211 GPa
d ( ) t ( ) g 9.8 m/s2
20
13 (20) 228 346 – 698 1387
20 (25) 213 337 374 633 1375
25 (32) 212 322 377 616 1369
30 (40) 198 307 374 563 1360
40 (50) 200 304 372 535 1350
50 (63) 198 284 373 507 1338
PE 3
( )
1 2 3
13 (20) 23 35 – 71 141
20 (25) 22 34 38 65 140
25 (32) 22 33 38 63 140
30 (40) 20 31 38 57 139
40 (50) 20 31 38 55 138
50 (63) 20 29 38 52 136 1m/s
– 15 –










PE 3
PE 1 PE 1
3 (25) PE332

4 UL PE 21

50 150mm
21
10 PE 1 10 2m PE 2 10 2m 10 2m
0 PE 1 10 2m PE 2 10 2m 10 2m
-10 PE 1 10 2m PE 2 10 2m 10 2m
JIS K 6742
– 17 –
PE 2

22 PE 23 5 6

PE 1 2
1/2 1/2 1/2 13 1.62 2.07 1.21 1.90 2.67 3.87
20 1.48 2.05 1.32 2.06 2.50 3.76
25 1.80 2.57 1.23 2.20 2.69 4.14
30 1.69 2.58 1.53 2.39 2.06 3.16
40 1.99 2.95 1.51 2.46 2.06 3.42
50 2.27 3.58 1.32 2.40 2.12 3.84
JIS K 6742
:kN
(mm)
(%) G
(mm)
(%) G
(mm)
(%) 13 4.9 85.0 3.5 77.5 3.5 43.8
20 5.6 85.4 4.2 74.9 4.2 39.5
25 7.0 86.9 4.9 78.4 4.9 42.8
30 7.8 86.2 5.6 79.6 4.9 46.6
40 9.1 83.3 6.3 80.0 5.6 53.2
50 11.2 85.8 7.0 81.1 6.3 58.0
1. JIS K 6742 2. G 2 ×× 0.7
23
– 19 –

EF


PE 1 PE 2

13 200 1.0 × 10 1.0 × 10
20 25 30
40 50
800 1.0 × 10 1.0 × 10
F74 / P0.75MPa W10mm
– 20 –
26 ( ISO/TR 103581993 ) )
JIS K 7107 K 7108 JIS K 7107
JIS K 7108 (IDT ISO 6252)
1
( ) ( )



2) PE JIS K 6762( PE )
(1) PE
(2) P E 2 5 23 1mg/L 6.7 (7.6 ) 270 (300 ) No.95-01
(3) 0.1mg/ ( 0.4mg/ ) 0.2mg/ ( 1.5mg/ )
( 81 49 7 26 )
– 21 –
25 PE

500 1000 1500 2000 2500 3000
1
2
1. 500mg/L pH 6 7 60 1L/hr
2. 10 ASTM D714-56 Fig.4 BlisterSize 8 Fig.4 Continued 1cm2
3)
( )
1) PE
2)
PE
JIS K 6762
PE50PE80PE100 240 1000
1) 1994 2) 2 (3) 203 1990
– 22 –

35% - × ×
60%
98% × 40%
25% × ×
50% ×
>50% × ×
60% 30%
<80% 40%
95%

× ×
– 23 –
3. 1) ( )
11 3 31 32 5 JIS K6762 1
JIS K6762 1 11 12 21 JIS K6762 1

2) ( ) PE 40cm
40cm
( )
(1) 9
(2)

P v
– 24 –
M 1 (N - ) K : K M/wR
( 60 K =0.189) w 1 Pv (MPa) Pv (MPa) P P R ( ) R ( D t )/2 D ( ) Ph (MPa) σ (MPa) Z 1 (/ ) t ( ) δ ( ) Fr
( 60 Fr =0.103) Fd 1.5 E’ (MPa)
E’ = 9.8 MPa E PE
(1 196 MPa2 784 MPa) I t /12: 1 (/ )
(Pv) (P1) (P2)

Cd
γ (N/m ) γ 17.6 kN/m
B (m) B 0.5m H (m)
(deg) 30
α (mm- ) i i 0.5
Q (N) T-25 Q 98kN β
H 1m 4m 1.0 0.9( ) 4m β =0.9
T-25 2 α 27
27 :mm-2
H H 0.6m H 0.8m α 10.34×10-7 7.50×10-7
(3)
S σb (MPa)
PE 1 9.8 MPa PE 2 19.6 MPa PE 3 (PE100) 20.0MPa
σ (MPa)
= δ /
(5) 2.5 1 9.8MPa ÷ 2.5 = 3.92 MPa
2 19.6MPa ÷ 2.5 = 7.84 MPa 3 (PE100) 20.0MPa ÷ 2.5 = 8.00 MPa
– 26 –
(6) 28 29 ( / )
28 PE

(MPa) σ
(MPa) S
13 3.2 1.77 2.21 1.49 1.34 2.93 1.12
3.92
20 3.7 1.97 1.99 1.74 1.49 2.63 1.30 25 4.65 1.98 1.98 1.74 1.49 2.63 1.32 30 5.2 2.23 1.76 2.02 1.68 2.33 1.55 40 6.05 2.18 1.80 1.98 1.65 2.38 1.50 50 7.45 2.22 1.77 2.03 1.68 2.33 1.53
2
13 2.3 4.03 1.95 1.34 3.05 2.57 1.02
7.84
20 2.75 4.31 1.82 1.48 3.26 2.40 1.11 25 3.2 4.76 1.65 1.71 3.60 2.18 1.29 30 3.7 5.15 1.52 1.90 3.90 2.01 1.45 40 4.15 5.27 1.49 1.98 3.98 1.97 1.48 50 4.65 5.95 1.32 2.28 4.50 1.74 1.72
29 PE (3 )


(mm)
(MPa) σ
(MPa) S
25 2.3 5.89 1.36 1.76 4.44 1.80 1.32
8.0 32 3.0 5.75 1.39 1.69 4.33 1.85 1.28 40 3.7 5.85 1.37 1.75 4.40 1.82 1.33 50 4.6 5.89 1.36 1.76 4.43 1.81 1.32 63 5.8 5.88 1.36 1.76 4.43 1.81 1.32
60° PE100
60cm 1 1.76 2.212 1.32 1.95 1.67 1.74 ( No.99-03) 5 1 2 3 ( PE100)
PE
PE
1) ( 48 6 7.4) 80,000 0
2) ( 53 6 7.4) 9 1,000
0.0058
3) ( 62 12 6.7) 5,079 15
0.03 ( ( ) 1994 )
4) ( 7.2)
(1) PE (0/9 ) 20 30 /1.5 HIVP (550 /9 )
(2) PE (0/1.3 ) HIVP ( /1.5 )
(3) PE VP HIVP

(1) PE 70
PE
(2) 30
30 5 10 20



PE 2
1
1
2
3
: 13 60cm
2) (1) (2) (3)
PE
( )

PE
Δ L = αΔθL Δ L ( )
L ( ) Δ θ ( )
a PE 1 17 × 10 / PE 2 12 × 10 / PE 3 13 × 10 /
2)
σθ = αΔθE σθ (MPa)
E (MPa)

A (mm)
3) PE 31 PE

31 PE 1 2 3
13 60 13 80 20 60
20 70 20 100 25 70
25 90 25 120 32 90
30 100 30 140 40 110
40 120 40 160 50 140
50 150 50 180 63 170
PE 10 20 (
1/1000 1/300) 20
32
Δ L (mm/m)
1m Δ L
1m Δ L
σ θ 2 (MPa)
0 -20 -3.4 265 0.90 -2.4 883 2.12 -2.6 1800 4.68
10 -10 -1.7 226 0.38 -1.2 735 0.88 -1.3 1400 1.82
20 0 0 196 0 0 588 0 0 1300 0.00
30 10 1.7 147 -0.25 1.2 500 -0.60 1.3 980 -1.27
40 20 3.4 108 -0.37 2.4 397 -0.95 2.6 880 -2.29
1 2
32
– 31 –
7. PE ( 50 ) ( 215) 10
10 -1 3 Weston
Q (cm3/s) d (cm) I

10 PE Weston
100.0
(1 00 m )
13 20 25 30 40 50
10.0
1.0
(1 00 m )
13 20 25 30 40
50
10.0
1.0
50 Weston
h (m) d (m) v (m/s) g (m/s2) L (m)
( 11 )
(hΣh)<H
(1 00 m )
25 32 40 50
63
10.0
1.0
(1) (2) (3) (4) (5)
2) (1) 12
(2)

(2) (3)
12 PE(1350)

– 34 –
(1) PE (2) PE PE
2) (1) 1.5m (2) (3) (4) 10cm

1.5m ( )
(4) ( ) (5)
– 35 –
33

3.2 (1) (2) (3)
(1) 30 (2) (3)
3.3 (JWWA B 116) (1) (2) JWWA B 116 ( 13 34)
(1) PE (2) JWWA B 116
– 36 –
×
132025304050
20 × 1325 × 1325 × 2030 × 1330 × 2030 × 2540 × 20
40 × 2540 × 3050 × 2050 × 2550 × 3050 × 40
132025304050
45° 132025304050
13 × 1320 × 1320 × 2025 × 1325 × 2025 × 2530 × 13
30 × 2030 × 2530 × 3040 × 1340 × 2040 × 2540 × 30
40 × 4050 × 1350 × 2050 × 2550 × 3050 × 4050 × 50
132025304050
×
132025
1320
132025304050
13 × 20P13 × 25P20 × 13P20 × 25P25 × 13P
25 × 20P25 × 30P
JWWA B 116
132025304050
90° 132025304050
60° 132025304050
– 37 –
13 25 30 50 ( 14)
14 JWWA B 116
(2) PE (3) (4)
– 38 –
15

:Nm
(1) PE PE (2) ( 16 17)
2) ( 18 19)

(1) PE PE PE (2) ( ) PE PE
PE
20

PE
21
(2) ( 22 23) 60 90
PE

(1) ( ) (2) (3) PE PE ( )
PE
3.8 (1) ( ) ( ) (2) PE PE
3.9 PE (1) (2) (3)
– 44 –
4. (1) PE 2mm (2) +30 70cm 120cm +10 15cm( ) (3) 10 15cm (4) ( ) 10 15cm 10cm 10 15cm
(1) PE 2mm (2)
( ) +30 70cm ( )
( ) ( ) ( ) ( PE ) ( )
( 25 ) ( ) ( ) 10 15cm ( ) ( ) PE
– 45 –
( ) PE ( ) ( ) ( PE )
( ) 2mm
(a) 2mm (b)
( ) 1 10 15cm ( )
(a) (b) (c)
( )
( ) (10cm )
( ) 10cm ( ) 10cm ( )
( ) 10cm ( ) 60cm



( )
BD30cm70cm
h
H
(1) ( ) 2mm (2) (3) 10cm (4) h
(a) (b) (c) (d) ( 30cm ) (e)
( ) 30cm ( ) ( ) 30cm PE PE 30cm PE ( 27) ( ) PE 30cm ( 28 36) ( ) PE
– 47 –
PE (12 )
PE

13 21.5 – 32 35.7 30 31.0 20 27.0 25 40 41.6 40 40.0 25 34.0 32 50 52.9 50 51.0 30 42.0 40 65 67.9 75 77.2 40 48.0 50 65 67.9 75 77.2 50 60.0 63 80 80.7 75 77.2

(PE )
PE
5. (1) PE PE
(2) PE PE 45 PE
(3) PE
(1) PE 1.2m (2) PE (45 )
6. (1) PE (2) PE 37
: cm
13 20 25 30 40 50
45 55 70 85 100 120 65 85 105 130 145 180

25 32 40 50 63
3 80 100 120 150 200 1 20 2 3 30
(3) ( )
(1) (2) PE ( ) (3) PE
R
7. (1) PE (40 120m) PE (2) PE (3) PE
(1) PE 29 30




PE
(3) ( 2)
8.2
38



( 31)

9. (1) (2) (3) (4)
57 2

29 6
11.

29 6
12. (1) (2) 401 (3) PE PE 40
– 52 –
39

0.6MPa 20%
)
PE (40 )

0.75MPa 3

PE
PE
0.75MPa 10 0.6MPa
0.75MPa

– 54 –
1. PE 1)
1980 ,
( )
1981 LDPE LLDPE ,1988 JPS-04
1993 JIS 1998 JIS
2)


1 ( 2000PPM 40 12cc/cm3)

24hr 72hr 168hr
LDPE 2 5 7 N=2 LLDPE 0 1 3 N=3
0( ) → 10( ) 11 ASTM D71456 Fig4.Blister SizeNo8 Fig4.Continued cm2
2 ( 50PPM 25 1m /h) 30 48 65 81 113 145 178 3 3 5 7 7 7 8 1 1 1 1 1 2 2
3)
– 55 –
0
1
2
3
4
5
6
1
0 1 2 3 4 5 6 987 ( )
1
1

(500PPM) 3
1998 JPS-04
3 ( 500PPM 60 1L/h ) 500hr 1000hr 1500hr 2000hr 2500hr 3000hr 1 2 2 3 3 0 0 0 0 0 0
5) PE 10 1989 2 10 10 4

– 56 –

0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0 0
0.45PPM 0.37PPM
6) ( 20 ) ( 40 )
21 1990 2012 10 19 1993 2012 12
20
– 57 –
(1) ( 3)
PE R24 p58 PE 5
(2) ( α ) × 2 × 0.7 × 2 5
5 13 20 25 30 40 50
α 4.9 5.6 7.0 7.8 9.1 11.2
α 3.5 4.2 4.9 5.6 6.3 7.0
(3) ( 3) PE (4) ( ) PE ( 4) (5) PE ( 5)
PE
α
3
PE
PE ( ) 2)
( ) 0.250.50.75MPa 3 ( × t) 8
2.0 × t1.9 × t1.8 × t1.7 × t1.6 × t1.5 × t1.4 × t1.3 × t 3)
(1) 202550 3 5m 6
( )
6 1 2 3 4 5 6 7 8 AB
20A A 3.95 4.02 4.05 4.02 3.99 3.98 3.98 3.99 4.00
3.99 B 3.93 4.03 4.00 3.98 3.98 3.94 3.97 3.98 3.98
25A A 4.90 4.88 4.97 4.99 4.96 4.93 4.95 4.94 4.94
4.93 B 4.89 4.92 4.94 4.99 4.92 4.86 4.86 4.92 4.91
50A A 7.95 7.98 7.90 8.02 8.09 8.20 8.16 8.08 8.05
8.03 B 8.02 7.94 7.90 7.87 8.03 8.21 8.09 8.05 8.01
(2) 25 50A ( ) R24 MW2HP35EL5 ( )
(3) ( )
(0.5 30 )
P
(4) 7
(t) 2.0 1.9 1.8 1.7 1.6 1.5 1.4 1.3
20A 3.99 7.97 7.58 7.18 6.78 6.38 5.98 5.58 5.18
25A 4.93 9.85 9.36 8.87 8.37 7.88 7.39 6.90 6.40
50A 8.03 16.06 15.26 14.46 13.65 12.85 12.05 11.24 10.44
4) 1 ( ) 8 8 13 11 13
8 ( )
( × )
2 1.9 1.8 1.7 1.6 1.5 1.4 1.3
20A
0.50 144 48 16 3.5 0.6 0.14
0.75 186 63 21 4.5 0.8 0.20
25A
0.50 264 91 49 16 8 6 2
0.75 3000 240 53 21 13 9 3
50A
0.50 610 124 59 35 20 7
0.75 860 156 80 47 27 11
mm
20A
1.5t 1.4t 1.3t 0 20 40 60 80 100 120 140 160 180 200
(c c )
0.25MPa 0.50MPa 0.75MPa
1.8t 1.7t 1.6t 1.5t 1.4t 1.3t 0 50 100 150 200 250 300
(c c )
0.25MPa 0.50MPa 0.75MPa
9 25A
1.8t 1.7t 1.6t 1.5t 1.4t 1.3t 0
100 200 300 400 500 600 700 800 900 1000
(c c )
0.25MPa 0.50MPa 0.75MPa
10 50A
– 61 –
0.01
0.1
1
10
100
0.25MPa 0.50MPa 0.75MPa
11 20A
1.8t 1.7t 1.6t 1.5t 1.4t 1.3t 1
10
100
1000
12 25A
1.8t 1.7t 1.6t 1.5t 1.4t 1.3t 1
10
100
1000
13 50A
– 62 –
5) (1) ( ) (2) 1.8 ( 10%) (3) 1.6 ( 20%)
( 50 × 0.75MPa 1 ) (4) 1.4 ( 30%) (5) 1.3 ( 35%)

6) (1)
9

(× )

1.4 9 (1.29 1.53 × ) × 1.3 × 1.3
2.3 1)

10 (80 )
– 63 –
(MPa) 2.2 2.6 2.2 2.6 2.2 2.2
( ) 1 2 1 2 1 1
2) 50A 20A ( )
3) 11 12
11 (20A)
MPa 2.2 2.6 2.2 2.6 2.2 2.2
MPa 0.73 0.87 0.87 0.73 0.87 0.87 0.74 0.73
hr 1027 307 222 1027 588 215 2008 2008


12 (50A)
MPa 2.2 2.6 2.2 2.6 2.2 2.2
MPa 0.66 0.76 0.76 0.64 0.76 0.76 0.66 0.66
hr 1027 42 27 1027 97 22


4) 2

2.2MPa 1000hr 2.4MPa 165hr
– 64 –


× 1.4( 30%) R=24 ( )
( × 1.6 )
– 65 –
3. PE 3.1 PE

13
(1) 0.75MPa1MPa1.75MPa 3 ( 15) (2) 9 10 ( 16)
(31 )
0.75MPa

3.2 1)
(1) (2) (3)
16
3
12
4
11
1
3
4
16
– 66 –
2) (1) 25A 50A 2 (2) 5m (3) (3 ) 1.5 (4) ( )1.0MPa 1.5MPa (5) (6) 1
13 mm

25A 34.0 5.0 24.0
50A 60.0 8.0 44.0
3) 1( ) 14 20 10% 1.0MPa × 3 1.5MPa 1.0MPa 50A 25A
3
14 20
25A 50A
1.5MPa → 1.0MPa 29% 10% ×
– 67 –
4) 2( 3 ) 18 21
25A 50A 1.5MPa 1MPa 4 2 / 5 / 3
( )
10 10 12%
35
73
1.6
0
1.4
1.2
1
0.8
0.6
0.4
0.2
M Pa





18 1.5MPa(25A)
2 5 ( )

0
1.2
1
0.8
0.6
0.4
0.2
M Pa




12
20 1.5MPa(50A)
2 5 ( )

0
1.2
1
0.8
0.6
0.4
0.2
5) (1) (2) 10 12% (3) (2 / ) 10 35%

– 69 –
( ) ( ) PE

PE ( 1 ) PE PE
A)
( )
B)

– 70 –
5. PE 15 ( JIS K 6900 )
15
1. batch release test

3. relaxation

5. (SDR)
standard dimension ratio
20 50 97.5 MPa
8. environmental


– 71 –
12. nominal outside diameter
ISO
( )
14. synthetic resin
15. compound

18. injection molding
20. (MOP)
m a x i m u m o p e r a t i n g
pressure

quality
1997 “ ” JIS S 3200-7
22. brittle(ness)
thermal expansion
24. plasticity

25. plastic deformation

28. out-of-roundness
N/mm -
32. colored compound

( ) ( ) MRS
35. coefficient of
37. breaking

38. specific gravity
4 (0 1 )
39. strain

42. plastics
( )

44.
polyethylene pipe
PE 1 2
45. polyethylene resin

47. density
g/cm
intension
( ) σ ( ) εσ =Eε σε E= σ / ε
49. dielectric dissipatio
ε
51. nominal outside
– 75 –

20
– 76 –
7. PE PE JWWA B 116:2012
JWWA B 116:2012
1) (1) 16
16
l
T c)
( )
13 13
3 2
0.5
28 35 M31 × 2 20 20 29.3 16.4 15.5 3.0 35 42 M38 × 2 25 25 36.6 21.3 17.5 3.0 42 49 M45 × 2 30 30 45.0 28.0 20.0 3.5 53 60 M56 × 2 40 40 51.5 32.0 24.0 4.0 60 68 M63 × 2 50 50 64.5 41.0 30.0 4.5 74 82 M77 × 2
a) d 20 d b) d2 c) T JIS B 0207:1982 5.1( ) 5.2( )
– 77 –
17
1 62 34 5

1 a) JIS H 5120 CAC406CAC411CAC900 CAC910
b) JIS H 5121 CAC406 CCAC411CCAC900C CAC911C c) C
2
3
a) JIS G 4305 SUS304 b) JIS H 5120 CAC406CAC411CAC900 CAC910 c) JIS H 5121 CAC406CCAC411CCAC900C CAC911C d) JIS H 3250 C3531a) C6800 a)
e) C
4 POM( )
5
a) JIS H 5120 CAC406CAC411CAC900 CAC910 b) JIS H 5121 CAC406CCAC411CCAC900C CAC911C
c) C 6 JIS H 3270 C5191W

1 CAC900 CAC902 CAC904 2 CAC910 CAC911 CAC912 3 CAC900C CAC902CCAC903C CAC904C 4 C6800 C6803 a) JIS H 3250 B 1 ( 70μm )

– 78 –
2) 3 JWWA B 116:2012 (1) 18
L
B

31
B
T
T
29
Rc1/2 Rc3/4 Rc1
Rc1 Rc1 Rc2
a) , JIS B 0203
D
a)T
mm

L d
G3/4 G1
18 25 30 38 48
31 38 47 54 66 83
T a) , JIS B 0202:1999 , , JIS B 0202:1999 2 B
a)TL
T
Bd
1
1P = 1dyns/cm = 1g/cms 1Pas = 1Ns/ m 1cP = 1mPas



m2/s cSt St
J kWh kgfm kcal



1 1cal 4.18605J( )

W/( m2K) kcal/(hm )
1J = 1Ws1Wh = 3600Ws 1cal = 4.18605J( ) 1
1.16279
1
2.38889×10 4
1 1W = 1J/sPS 1PS = 0.7355kW( ) 1cal = 4.18605J( ) 1cal = 4.18605J( )

6 1 1 30 5 17 7


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TEL 090-3302-3725 FAX 03-5695-3189

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