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Standard ČSN 640312 30.8.1984 preview

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ČSN 640312 (640312)

Polyethylene. Determination of swelling grade



STANDARD published on 30.8.1984


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The information about the standard:

Designation standards: ČSN 640312
Classification mark: 640312
Catalog number: 29754
Publication date standards: 30.8.1984
SKU: NS-131713
The number of pages: 8
Approximate weight : 24 g (0.05 lbs)
Country: Czech technical standard
Category: Technical standards ČSN

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The category - similar standards:

Thermoplastic materials

Annotation of standard text ČSN 640312 (640312):

Touto normou se zavádí ST SEV 4065-83 jako ČSN, jíž se pro potřeby tehdejší ČSSR (ČSFR), resp. ČR norma RVHP nedoplňovala. Podstata zkoušky: Metoda je založena na vytlačování roztaveného polyethylenu tryskou kapilárního plastometru při dané teplotě a tlaku a následujícím stanovení součinitele narůstání na ochlazeném výtlačku v závislosti na průměru trysky plastometru. Postup normalizované zkoušky je podrobně popsán. ČSN 64 0312 byla schválena 30.8.1984 a nabyla účinnosti od 1.1.1986. Nahradila čl. 60 až 64 ČSN 64 3010 z 15.8.1973

Preview of the standard ČSN 640312 (640312)

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