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Plastics testing. Environmental stress cracking of polyethylene plastics
STANDARD published on 18.5.1979
Designation standards: ČSN 640766
Classification mark: 640766
Catalog number: 4704
Publication date standards: 18.5.1979
SKU: NS-131803
The number of pages: 12
Approximate weight : 36 g (0.08 lbs)
Country: Czech technical standard
Category: Technical standards ČSN
Touto normou se zavádí ST SEV 897-78 jako ČSN, jíž se pro potřeby tehdejší ČSSR (ČSFR), resp. ČR norma RVHP nedoplňovala. Norma RVHP platí pro polyethylen a předepisuje postup pro stanovení odolnosti proti korozi za napětí. Podstata i provedení normalizované zkoušky je podrobně popsáno. ČSN 64 0766 byla schválena 18.5.1979 a nabyla účinnosti od 1.1.1980. Nahradila čl. 102 až 107 ČSN 64 3010 z 15.8.1973
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