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Item Code: 2494 Gas NBR

BSEN 682 : 2002 / NY141

Properties test method
values
fps units
test method
values
metric units
POLYMER NITRILE RUBBER
SURFACE BLACK RUBBER SHEET BOTH SIDE FABRIC NY 141 CLOTH FINISH
THICKNESS in mm (±0.4) 3.15 3.00
WIDTH in mts (±3%) 1.41 1.40
LENGTH in mts .(±3%) 10.10 10.00
DENSITY Mg/m3 1.21 1.20 ± 0.02
HARDNESS,IRHD 70-71 70 ± 5
TENSILE STRENGTH, Mpa 110 100 min.
ELONGATION AT BREAK, % 300 200 min.
a) Compression set, (% ), max.:
- in temp. 23° C after 72 h 8 10
- in temp. 70° C after 24 h 15 18
- in temp. -5° C after 72 h 22 25
b) Air ageing resistance in temp.70°C after 7 days:
a) Δ RR , ( % ) , max. -7 ± 15
a) Δ ER , ( % ) ,max. -10 +10/-25
a) Δ H , ( ° Shore A) , max. +3 ±5
Stress relaxation, max.
7 days at 23° C 11 14
90 days at 23° C 17 20
Volume change in liquid B after 7 days at 23°C, max +20 +30
Volume change in liquid B and subsequent 4 days at 70°C air drying, max -7 -10
Volume change in oil IRM 903 after 7 days at 70°C +5 +10/-1
Ozone resistance ok No cracking when viewed without magnification.
Compression set, (% ), max.: -in temp. -15° C after 72 h, max 25 50
QUANTITY (ROLLS) 37 37
QUANTITY (Kgs) 1895

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