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Standard ČSN 621121 23.9.1985 preview

ČSN 621121 (621121)

Chemical test of vulcanized rubber. Determination of carbon black content



STANDARD published on 23.9.1985


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The information about the standard:

Designation standards: ČSN 621121
Classification mark: 621121
Catalog number: 29598
Publication date standards: 23.9.1985
SKU: NS-131269
The number of pages: 12
Approximate weight : 36 g (0.08 lbs)
Country: Czech technical standard
Category: Technical standards ČSN

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The category - similar standards:

Rubber

Annotation of standard text ČSN 621121 (621121):

Touto normou se zavádí ST SEV 4477-84 jako ČSN, jíž se pro potřeby tehdejší ČSSR (ČSFR), resp. ČR norma RVHP doplňovala o tři články, které přímo nesouvisí s ochranou zdraví. Norma RVHP platí pro gumárenské směsi, pryže a pryžové výrobky a předepisuje tři metody stanovení obsahu sazí. Principy analytických metod a postup při jejich provádění je v normě podrobně popsán. Poznámka recenzenta: Norma má význam pro přípravu vzorků, resp. pro zkoušení možného negativního účinku normalizovaného výrobku (pryže) na pokožku především z hlediska spotřebitele. ČSN 62 1121 byla schválena 23.9.1985 a nabyla účinnosti od 1.1.1987. Nahradila ČSN 62 1121 z 14.4.1981

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