GB/T 11213.5-2006: Sodium hydroxide for chemical fiber use -- Determination of sulphate content

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Scope

This Standard specifies the method for the determination of sulfate content in sodium hydroxide
for chemical fiber use.
In this Standard, Method-A is applicable to products with a sulfate content (by Na2SO4) in
sodium hydroxide of 0.001%~0.07%; Method-B is applicable to products with a sulfate content
(by Na2SO4) in sodium hydroxide equal to or greater than 0.01%.

Basic Data

Standard ID	GB/T 11213.5-2006 (GB/T11213.5-2006)
Description (Translated English)	Sodium hydroxide for chemical fiber use -- Determination of sulphate content
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	G11
Classification of International Standard	71.060.40
Word Count Estimation	6,632
Date of Issue	2006-12-29
Date of Implementation	2007-06-01
Older Standard (superseded by this standard)	GB/T 11213.5-1989; GB/T 11213.6-1989
Quoted Standard	GB/T 603; GB/T 6682
Adopted Standard	ISO 6353-1-1982, NEQ; ASTM E291-2001, NEQ
Regulation (derived from)	National Standard Approval Announcement 2006 No.13 (Total No.100)
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary	This standard specifies the method for the determination of the chemical sodium hydroxide sulfate content. This standard method A suitable sodium sulfate content of 0. 001% to 0. 07 % of the products, Method B applies to sodium sulfate content equal to or greater than 0. 01 % of the product.