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 Inspection Items   (Unit)   Standard QC/T639-2004 Inspection  Result Hardness (Shore A) 70±5 68 Strength Min Mpa 7.0 7.2 Elongation Rate Min. % 250 370 Breaking Tension Min. KN/m 15 16 Compression  Deformation 100ºC×22hMax. % 50 50   100ºC×70hHot aging Strength Varies Max. % -25 25 Elongation Rate Max. % -25 25 (200PPhm20%,40ºC×70h) Ozone resist […]

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 Inspection Items  

(Unit)

 

Standard QC/T639-2004

Inspection 

Result

Hardness (Shore A) 70±5 68
Strength Min Mpa 7.0 7.2
Elongation Rate Min. % 250 370
Breaking Tension Min. KN/m 15 16
Compression 

Deformation

100ºC×22hMax. % 50 50
 

100ºC×70hHot aging

Strength Varies Max. % -25 25
Elongation Rate Max. % -25 25
(200PPhm20%,40ºC×70h) Ozone resist No Crack No crack
 

(23ºC×168h)Contamination

 

Minor Yellow Contamination

 

 

No Contamination

Brittleness Temperature Max. ºC -50 -53

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