HG/T 3519-2023 English PDF

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HG/T 3519-2023: (Determination of benzotriazole in industrial circulating cooling water)
Status: Valid

HG/T 3519: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
HG/T 3519-2023	179	Add to Cart	3 days	(Determination of benzotriazole in industrial circulating cooling water)	Valid
HG/T 3519-2012	199	Add to Cart	2 days	Industrial circulating cooling water. Determination of benzotriazole	Obsolete
HG/T 3519-2003	199	Add to Cart	2 days	Industrial circulating cooling water-Determination of Benzotriazole	Obsolete
HG/T 3519-1985	199	Add to Cart	2 days	(Industrial circulating cooling water benzene Benzotriazole determination)	Obsolete

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Basic data

Standard ID: HG/T 3519-2023 (HG/T3519-2023)
Description (Translated English): (Determination of benzotriazole in industrial circulating cooling water)
Sector / Industry: Chemical Industry Standard (Recommended)
Classification of International Standard: 71.040.40-��ѧ����
Word Count Estimation: 8,891
Date of Issue: 2023-07-28
Date of Implementation: 2024-02-01
Older Standard (superseded by this standard): HG/T 3519-2012
Issuing agency(ies): Ministry of Industry and Information Technology
Summary: This standard specifies the determination method of benzotriazole in industrial circulating cooling water and compound chemicals. The ultraviolet spectrophotometry method in this standard is suitable for the determination of benzotriazole and methylbenzotriazole in circulating cooling water systems, and is also suitable for the determination of benzotriazole and methylbenzotriazole in compound pharmaceuticals. The measurement range is 0.4 mg/L ~ 20 mg/L. High-performance liquid chromatography is suitable for the determination of benzotriazole and methylbenzotriazole in compound pharmaceuticals, and the determination range is 0.3% to 3%.

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