HG/T 4230-2011Polyurethane chain extender MCDEA (English PDF)
聚氨酯扩链剂MCDEA
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Issued by
MIIT
Level / Type
Industry · Recommended
Issue date
December 20, 2011
Implementation date
July 1, 2012
Scope
HG/T 4230-2011 is the English-translated version of 聚氨酯扩链剂MCDEA.
HG/T 4230-2011 is the recommended Chinese chemical industry standard for the polyurethane chain extender MCDEA, chemically 4,4'-methylenebis(3-chloro-2,6-diethylaniline). It fixes the requirements for the product, the test methods, the inspection rules and the provisions for marking, packaging, transport and storage. It applies to the chain extender produced from 3-chloro-2,6-diethylaniline and formaldehyde in an acidic medium. The standard carries the Chinese classification G71 and the international classification 71.100.40. It quotes GB/T 191-2008, GB/T 4472-1984, GB/T 6283-2008, GB/T 6678-2003, GB/T 6682-2008, GB/T 8170-2008, GB/T 11409-2008 and GB/T 16631-2008. It was issued on 20 December 2011 and has applied since 1 July 2012.
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Document preview — HG/T 4230-2011
National Standard of the People's Republic of China
- ICS
- 71.100.40
Issued by: Ministry of Industry and Information Technology of the People's Republic of China
Contents
- 2 Normative references
2 Normative references
HG/T 4230-2011 cites the following standards, which apply in full or in part through the references made to them in its clauses.
GB/T 191-2008
GB/T 4472-1984
GB/T 6283-2008
GB/T 6678-2003
GB/T 6682-2008
GB/T 8170-2008
GB/T 11409-2008
GB/T 16631-2008
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
Normative references
- GB/T 191-2008Graphical symbols marking for handling and storage of packages
- GB/T 4472-1984Detemination of density and relative density for chemical products
- GB/T 6678-2003General principles for sampling chemical products
- GB/T 6682-2008Water for analytical laboratory use - Specification and test methods
- GB/T 8170-2008Rules of rounding off for numerical values & expression and judgement of limiting values
- GB/T 11409-2008Test methods rubber antiagers and vulcanizing accelerators
GB/T 6283-2008 · GB/T 16631-2008
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Related Standards
GB/T 11409-2008 — Test methods rubber antiagers and vulcanizing accelerators
GB/T 6678-2003 — General principles for sampling chemical products
GB/T 6682-2008 — Water for analytical laboratory use - Specification and test methods
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