HG/T 4227-2011Isobutylene etherification resin catalysts (English PDF)

HG/T 4227-2011 is the English-translated version of 异丁烯醚化树脂催化剂.

HG/T 4227-2011 is the Chinese chemical industry standard for isobutylene etherification resin catalysts. It sets the requirements for the catalyst, the test methods used to verify them, the inspection rules and the provisions for marking, packaging, transport and storage. It covers polymers carrying sulfonic acid functional groups, obtained by sulfonating white styrene-divinylbenzene copolymer beads. The documents it quotes are GB/T 191-2008, GB/T 601-2002, GB/T 603-2002, GB/T 5475-1985, GB/T 5476-1996, GB/T 5757-2008, GB/T 5758-2001, GB/T 5816-1995, GB/T 6003.1-1997, GB/T 6682-2008, GB/T 8144-2008, GB/T 8170-2008, GB/T 8330-2008, GB/T 8331-2008 and GB/T 12598-2001. Issued on 20 December 2011, it has applied since 1 July 2012.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

HG/T 4617-2014|HG/T 4387-2012

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