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 2006 ( 18 )3 4 2010 ( 22 ) JIS ISO ISO 44272007 ISO JIS JIS 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 ---------------------------------------------------------------------------------------------- 39 3.5 ------------------------------------------------------------------------------------ 41 3.6 ------------------------------------------------------------------------------------------- 43 3.7 ----------------------------------------------------------------------- 43 3.8 ----------------------------------------------------------------------- 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 )

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 σ lcl 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 6815-3
2 19.6MPa 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) ± 25 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) MFR 0.05g/10min 1.4g/10min c) d)
1.3 1)
1 2) 3) 1


– 4 –
1.4 1 2 3 5 6 7
5 1 :mm

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
– 5 –

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
– 6 –


90
0 40 50.6 1.061
a) b) c) d) e) 1m 0.960g/cm3 f)
– 7 –
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 H25.3
S32.6.15 H23.12.14 5 16 S32.12.12 H16.3.19 4 H9.3.19 H23.1.28 H9.3.19 H24.2.28 H12.2.23 H23.1.28 H12.2.23 H24.2.28 S27.6.10 H23.12.14 32 33 S27.12.4 H24.12.12 12

H11.3.31 H12.3.24
2. PE 2.1
11 11
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)
tmin (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) ISO12162 1.25 Naday 15 16 1.0MPa
P (MPa) σ (MPa) D (mm)
tmin (mm) MRS


(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
– 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
4) 20 PE 1.0MPa
ISO 13761 17 ISO 13761 2 Line A 18
17 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
18 1 2 MPa
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
– 14 –
5) 50 PE
Allievi 1m/s 19 3
PE
H (m) VP (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 3.33 GPa 211 GPa
d ( ) t ( )
9.8 m/s2
PE

1 2 1 2
13 228 346 698 1387 23 35 71 141
20 213 337 633 1375 22 34 64 140
25 210 322 616 1369 21 33 63 140
30 198 307 563 1360 20 31 57 139
40 200 304 535 1350 20 31 55 138
50 198 300 507 1338 20 29 52 136
– 15 –










PE 1 PE 1
3 (25)

4 UL PE 20

50 150mm
20
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

21 PE 22 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
– 18 –

(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
22
– 19 –



23 PE

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 –
25 ( 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) PE 24 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 –
24 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 –
20 60 20 60 20 60

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

× ×
– 23 –
3. 1) ( )
11 3 31 ( 32 5 )
PE ( No.99- 03) PE1
( No.99-03)
2) ( ) PE 40cm
40cm
( )
(1) 9
(2)

0.166PhR2
– 24 –
M 1 (N - ) K : /
( 60 =0.189) w 1 (MPa) Pv (MPa) R ( ) ( )/2 D ( ) Ph (MPa) σ (MPa) Z 1 (/ ) t ( )
δ ( ) Fr
( 60 =0.103) Fd 1.5 E’ (MPa)
′= 9.8 MPa E PE
(1 196 MPa2 784 MPa) I /12: 1 (/ )
(Pv) (P1) (P2)

Cd
K K=(1-sin φ )/(1+sin φ )
γ (N/m ) γ 17.6 kN/m
B (m) B 0.5m H (m) φ (deg) φ 30
– 25 –
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 26
26
:mm-2
H H 0.6m H 0.8m α 10.34×10-7 7.50×10-7
(3)
S σ b (MPa)
PE 1 9.8 MPa PE 2 19.6 MPa
σ (MPa)
= δ /
(5) 2.5
1 9.8MPa ÷ 2.5 = 3.92 MPa 2 19.6MPa ÷ 2.5 = 7.84 MPa
– 26 –
(6) 27 ( / )
27 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
60°
60cm 1 1.76 2.212 1.32 1.95 1.50 1.53 ( No.99-03) 51 2
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

PE ( ) ( )
– 28 –
(1) PE 70
PE
(2) 28
28 5 10 20



PE 2
1
1
3
2) (1) (2) (3)
PE
( )

PE
Δ L = aΔθL Δ L ( )
L ( ) Δθ ( ) a
PE 1 17 × 10 / PE 2 12 × 10 /
2)
σθ = aΔθE σθ (MPa)
E (MPa)

A (mm )
3) PE 29 PE

1 2
13 25 50 55 100 20 35 65 70 130 25 40 85 85 170 30 50 100 100 210 40 60 120 120 240 50 75 150 150 300
PE 10 20 (
1/1000 1/300) 20
30
ΔL (mm/m)
E
( )

– 31 –
7. PE ( 50 ) ( 215) 10


100
100m
Q/s
m
13 13 20 20 25 25 30 30 4040 50 50
10
1
10 PE
50 Weston
h (m) d (m) v (m/s) g (m/s2) L (m)
( 11 )
(hΣh)<H
(1)
(2) (3) (4) (5)





PE


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

1.5m
( )
( )
– 35 –
31

3.2 1) 2) 3)
(1) 30
(2) (3)
3.3 (JWWA B 116) 1) 2)
JWWA B 116 ( 13 32)
(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 –
14 JWWA B 116
(2)
(3) (4)
– 38 –
15

33
:Nm 13 20 25 30 40 50

– 39 –
(1) PE PE (2) ( 16 17)
2) ( 18 19)
PE
PE
PE
(2) ( ) PE PE
PE

PE
21
2) ( 22 23) 60 90
PE
(1)
( )
(2)
(3) PE PE ( )
PE
2) PE
3)
4) PE
PE
5) PE ( )
6) 1 2
3.7 1) ( ) 2) ( ) ( )
3)
– 44 –
2) +30 70cm
120cm +10 15cm( )
3) 10 15cm 4) PE 5) ( ) 10 15cm
10cm 10 15cm
(1) PE

2mm
(2)
( ) 30 70cm ( )
( ) ( ) ( ) ( PE
)
( )
( 25 ) ( )
( ) 10 15cm (
) ( ) PE
– 45 –
)
( ) 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 34)
( ) PE
– 47 –
PE JIS G 3442
JIS K 6742

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

(PE )
PE
(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 35
35 (R)
: cm

45 55 70 85 100 120
65 85 105 130 145 180
1 20 2 30 3) ( )

(2) PE ( )
(3) PE

7. 1) PE (40 120m)
PE
2) PE 3) PE
(1) PE 29 30





PE
3) ( 2)

2) ( )
20cm 2
36



( 31)

(3)
9. 1)
2)
3) 4)
57 2
29 6
11.
29 6
12. 1)
2) 3) PE
PE
– 52 –

( )
(2) 37
37

0.75MPa
3
0.6MPa 20%
)
PE (40 )

0.75MPa 3
PE
PE
0.75MPa 10 0.6MPa
0.75MPa
– 53 –
2)
3) PE

– 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 D714 56 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)
(2) ( α ) × 2 × 0.7 × 2 5
5
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 mm 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 mm
(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 ( ) CC/
(MPa)
( × )
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
– 60 –
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
1000
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
(mm)
13 3.5 0.30 4.90 1.53 1.4 1.29
20 4.0 0.30 5.60 1.51 1.4 1.30
25 5.0 0.35 7.00 1.51 1.4 1.31
30 5.6 0.40 7.84 1.51 1.4 1.31
40 6.5 0.45 9.10 1.50 1.4 1.31 (× )
50 8.0 0.55 11.20 1.50 1.4 1.31
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 2.2MPa 1000hr
( ) 1 2 1 2 1 1 2.4MPa 165hr
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

– 64 –


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

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


(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 mm
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 –
( 1000 )
( 10000 0.1% )
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
27. withstand voltage test

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

( ) ( ) MRS
35. coefficient of

37. breaking

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

42. plastics
( )

diameter
44.
polyethylene pipe
PE 1 2
45. polyethylene resin
46. masterbatch compound

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

“ ” “ ”
( )
– 76 –
7. PE PE JWWA B 116:2012
JWWA B 116:2012
1) (1) 5
5
l
B B1 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 7 8 13 14 19 21 d
b) d2 c) T JIS B 0207:1982 5.1( ) 5.2( )
– 77 –
6
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) 7
L
B
B
B
T
T
D
a)T
mm

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 10 7 1 2 11 7 1 3 16 7 1 4 25 7 1 5 28 3 1 6


111-0041 2 6 7 4 TEL 090-3302-2725 FAX 03-5246-7884


111-0041 2 6 7 4
TEL 090-3302-2725 FAX 03-5246-7884