GOST 32509-2013

ГОСТ 32509-2013

Surface-active agents. Method for determination of biodegradability rate in aquatic environment

Вещества поверхностно-активные. Метод определения биоразлагаемости в водной среде

Status: Effective - Introduced for the first time. IUS 7-2014

This standard applies to the method for determining the biodegradability (degree of biodegradation) of anionic, non-ionic, cationic and ampholytic surfactants (hereinafter referred to as surfactants) or their mixtures in an aqueous medium. sludge in the flow model of the pilot aerotank and the time dependences of the chemical oxygen consumption in the purified water of the pilot aerotank in comparison with the control aerot The biodegradability indicators of surfactants determined according to this standard are used in regulating surfactant circulation on the market (Appendix A) and in determining recommended methods for treating surfactants containing surfactants (Appendix B), depending on the biodegradability class of the PAW. This method can be used to determination of water biodegradability of any water-soluble organic matter

Настоящий стандарт распространяется на метод определения биоразлагаемости (степени биоразложения) анионных, неионогенных, катионных и амфолитных поверхностно-активных веществ (далее - ПАВ) или их смесей в водной среде.Сущность метода заключается в определении временных зависимостей изменения концентрации ПАВ в результате взаимодействия с неадаптированным активным илом в проточной модели опытного аэротенка и временных зависимостей химического потребления кислорода в очищенной воде опытного аэротенка в сравнении с контрольным аэротенком.Показатели биоразлагаемости ПАВ, определяемые по настоящему стандарту, применяют при регламентировании обращения ПАВ на рынке (приложение А) и при определении рекомендуемых способов очистки стоков, содержащих ПАВ (приложение Б), в зависимости от класса биоразлагаемости ПАВ.Настоящий метод может быть использован для определения биоразлагаемости в водной среде любых водорастворимых органических веществ

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Format: Electronic (pdf/doc)
Page Count: 28

Approved: Federal Agency for Technical Regulation and Metrology, 11/22/2013

SKU: RUSS72839

Price: $384.00




The Product is Contained in the Following Classifiers:

PromExpert » SECTION I. TECHNICAL REGULATION » V Testing and control » 4 Testing and control of products » 4.9 Testing and control of chemical and industrial products » 4.9.5 Household chemicals, perfumes and cosmetics »

ISO classifier » 71 CHEMICAL INDUSTRY » 71.040 Analytical Chemistry » 71.040.40 Chemical analysis »

National standards » 71 CHEMICAL INDUSTRY » 71.040 Analytical Chemistry » 71.040.40 Chemical analysis »

ISO classifier » 71 CHEMICAL INDUSTRY » 71.100 Chemical products » 71.100.40 Surfactants »

National standards » 71 CHEMICAL INDUSTRY » 71.100 Chemical products » 71.100.40 Surfactants »


The Document References:

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GOST 29232-91: Anionic and non-ionic surface active agents. Determination of the critical micellization concentration. Method by measuring surface tension with a plate, stirrup or ring

GOST 29251-91: Laboratory glassware. Burettes. Part 1. General requirements

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GOST 4232-74: Reagents. Potassium iodide. Specifications

GOST 4328-77: Reagents. Sodium hydroxide. Specifications

GOST 450-77: Calcium chloride technical. Technical conditions

GOST 4517-87: Reagents. Methods for preparation of accessory reagents and solutions used for analysis

GOST 4523-77: Reagents. Magnesium sulphate 7-aqueous. Specifications

GOST 5845-79: Reagents. Potassium-sodium tartrate 4-aqueous. Specifications

GOST 6709-72: Distilled water. Specifications

GOST 83-79: Reagents. Sodium carbonate. Specifications

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GOST 9147-80: Laboratory porcelain ware and apparatus. Specifications

GOST 9871-75: Mercury-in-glass electric-contact thermometers

GOST OIML R 111-1-2009: State system for ensuring the uniformity of measurement. Weights of accuracy classes E1, E2, F1, F2, M1, M1-2, M2, M2-3 and M3. Part 1 Metrological and technical requirements.

GOST R 53228-2008: Non-automatic weighing instruments. Part 1. Metrological and technical requirements. Tests

SanPiN 2.1.4.1074-01: Drinking water. Hygienic regulations of the water quality of centralized drinking water supply system. Quality control

The Document is Referenced By:

GOST 33777-2016: Surface active agent. Method for the determination of phytotoxicity on seeds of higher plants

GOST R 58151.1-2018: Disinfectants. General technical requirements

GOST R 58151.3-2018: Disinfectants. Methods for determining physical and chemical parameters

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