Standard

ISO 247:1990

Tilbaketrukket

Merknad: Denne standarden har en ny utgave: ISO 247:2006

Rettelser og tillegg kjøpes separat.

Språk
Tjenester

Omfang

The two methods are applicable to raw, compounded and vulcanized rubbers of the families described in ISO 1629. The principle of method A consists in heating a weighed test portion in a crucible over a gas burner, followed by volatilization of the decomposition products and transfer of the crucible to a muffle furnace. The crucible is heated until all the carbonaceous matter has been burnt off and constant mass is attained. In method B a weighed test portion is heated in a crucible in the presence of sulfuric acid, first by means of a gas burner and then in a muffle furnace as in method A. Platinum crucibles shall be used for ashing fluorine-containing and lithium-polymerized rubbers. Cancels and replaces the second edition ISO 247:1978, which contains three methods of determination.

Dokumentinformasjon

  • Standard fra ISO
  • Publisert:
  • Tilbaketrukket:
  • products.specs.Expires:
  • Utgave: 3
  • Versjon: 1
  • Varetype: IS
  • ICS 83.060
  • ISO TC ISO/TC 45/SC 2

Produktrelasjon

Produkt livssyklus