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www.ChineseStandard.net Database: 189760 (18 Oct 2025)

HG/T 3519-2023 English PDF

US$179.00 · In stock
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HG/T 3519-2023: (Determination of benzotriazole in industrial circulating cooling water)
Status: Valid

HG/T 3519: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
HG/T 3519-2023English179 Add to Cart 3 days [Need to translate] (Determination of benzotriazole in industrial circulating cooling water) Valid HG/T 3519-2023
HG/T 3519-2012English199 Add to Cart 2 days [Need to translate] Industrial circulating cooling water. Determination of benzotriazole Obsolete HG/T 3519-2012
HG/T 3519-2003English199 Add to Cart 2 days [Need to translate] Industrial circulating cooling water-Determination of Benzotriazole Obsolete HG/T 3519-2003
HG/T 3519-1985English199 Add to Cart 2 days [Need to translate] (Industrial circulating cooling water benzene Benzotriazole determination) Obsolete HG/T 3519-1985

Standard similar to HG/T 3519-2023

HG/T 20718   HG/T 20716   HG/T 20722   

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Older Standard (superseded by this standard) HG/T 3519-2012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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