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GB/T 21817-2008Chemicals -- Inherent biodegradability -- Modified SCAS test (English PDF)

化学品固有生物降解性改进的半连续活性污泥试验

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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 21817-2008 is the English-translated version of 化学品固有生物降解性改进的半连续活性污泥试验.

GB/T 21817-2008 — This standard specifies the chemical inherent biodegradability improved semi-continuous activated sludge test methods outlined, test preparation, test drive Order, quality assurance and quality control, data and reports.

Under this standard applies to test water-soluble (DOC concentration in water of not less than 20mg/L), a non-volatile, micro test concentration no biological inhibition, the test surfaces of glass containers no adsorption, not because of inherent biodegradable foaming solution and loss of organic matter Equations.

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Document preview — GB/T 21817-2008

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 improved semi- continuous activated sludge test method overview, test preparation, test procedures, quality assurance and quality control, data and reports. This standard applies to test water soluble, the test concentration test concentration of microorganisms without inhibition, and then test the surface of the glass container without significant adsorption, not because of the loss of organic foaming solution inherent biodegradability.

Document data

International classification (ICS): 13.300; 13.020.40.

Chinese classification (CCS): A80.

Estimated length of the Chinese original: 8,841 words.

Adopted international standard: OECD No.302A-1981, IDT.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 6 pages — is available in the English PDF.

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