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GB/T 21816-2008Chemicals -- Inherent biodegradability -- Zahn-Wellens test (English PDF)

化学品固有生物降解性赞恩-惠伦斯试验

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Issued by

Standardization Administration of China

Level / Type

National · Recommended

Issue date

May 12, 2008

Implementation date

September 1, 2008

Scope

GB/T 21816-2008 is the English-translated version of 化学品固有生物降解性赞恩-惠伦斯试验.

GB/T 21816-2008 — Chemicals inherent biodegradability Zane This standard specifies - Wellens test method overview, test preparation, test procedures, quality assurance and quality control, data and reports.

This standard applies to the determination of water soluble (water concentration of not less than 50mg/L, with DOC dollars), non-volatile, no strong adsorption and not because of the loss of foaming solution, the concentration of the test for inherent biological microorganisms without inhibiting chemical degradation.

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Document preview — GB/T 21816-2008

National Standard of the People's Republic of China

ICS: 13.300; 13.020.40
Classification: A 80

Issued by: Standardization Administration of China

What this standard covers1
Document data2

What this standard covers

This standard specifies the inherent biodegradability of chemicals Zane Test methods outlined Florence Hui, test preparation, test procedures, quality assurance and quality control, data and reports. This standard applies to the determination of water-soluble, non- volatile, no strong adsorption, and not because of the loss of foam solution, the test concentrations no inhibition of microbial chemicals inherent biodegradability.

Document data

International classification (ICS): 13.300; 13.020.40.

Chinese classification (CCS): A80.

Estimated length of the Chinese original: 9,923 words.

Adopted international standard: OECD No.302B-1992, IDT.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 7 pages — is available in the English PDF.

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