HG/T 2520-2006: Phosphorous acid for industrial use

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Scope

This standard specifies the industrial phosphorous acid’s requirements, test methods,
inspection rules, signs, labels, packaging, transport, and storage.
This standard applies to phosphorous acid for industrial use. The product is mainly
used as production raw materials of phosphorous acid, synthetic fibres and
organophosphorus pesticides etc. It is also used in the production of high-efficient
water treatment agent - amino trimethylene phosphonic acid.
Molecular formula. H3PO3
Relative molecular mass. 81.99 (according to 2001 international relative atomic mass)

Basic Data

Standard ID	HG/T 2520-2006 (HG/T2520-2006)
Description (Translated English)	Phosphorous acid for industrial use
Sector / Industry	Chemical Industry Standard (Recommended)
Classification of Chinese Standard	G11
Classification of International Standard	71.060.30
Word Count Estimation	8,810
Date of Issue	2006-07-26
Date of Implementation	2007-03-01
Older Standard (superseded by this standard)	HG/T 2520-1993
Quoted Standard	GB/T 190-1990; GB/T 191-2000; GB/T 1250; GB/T 3049-1986; GB/T 6678; GB/T 6682-1992; HG/T 3696.1; HG/T 3696.2; HG/T 3696.3
Adopted Standard	JIS K8063-1994, NEQ
Regulation (derived from)	NDRC Notice No. 45 of 2006
Issuing agency(ies)	Ministry of Industry and Information Technology
Summary	This standard specifies the industrial phosphorous requirements, test methods, inspection rules and signs, labels, packaging, transport and storage. This standard applies to industrial phosphite. The product is mainly used as phosphites, synthetic fibers and organophosphorus pesticides and other raw materials, but also for the production of highly efficient water treatment agent amino trimethylene phosphonic acid.