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GOST 31950-2012

ГОСТ 31950-2012

Water. Method for determination of total mercury by flameless atomic absorption spectrometry

Вода. Методы определения содержания общей ртути беспламенной атомно-абсорбционной спектрометрией

Status: Effective - Introduced for the first time. IUS 4-2013

This standard applies to drinking, natural (surface and underground) and wastewater and establishes a flameless atomic absorption method for determining the mass concentration of total mercury (cold vapor method) after oxidizing all present forms of mercury to a bivalent state during mineralization of the water sample being analyzed, recovery mercury (II) to metal, measuring the absorption of resonant radiation by atomic mercury vapor at a wavelength of 253.7 nm and the subsequent calculation of the mass concentration of total mercury. The standard establishes three methods for determining the total mercury content: 1 - determination of the total mercury content after mineralization with potassium dichromate. The method is used to analyze drinking and natural waters used in drinking water supply, with concentrations of total mercury from 0.1 to 5.0 μg

Настоящий стандарт распространяется на питьевые, природные (поверхностные и подземные) и сточные воды и устанавливает беспламенный атомно-абсорбционный метод определения массовой концентрации общей ртути (метод «холодного пара») после окисления всех присутствующих форм ртути до двухвалентного состояния при минерализации анализируемой пробы воды, восстановления ртути (II) до металлической, измерении поглощения резонансного излучения атомным паром ртути при длине волны 253,7 нм и последующем расчете массовой концентрации общей ртути. Стандарт устанавливает три метода определения содержания общей ртути: 1 - определение содержания общей ртути после минерализации двухромовокислым калием. Метод применяют для анализа питьевых и природных вод, используемых в хозяйственно-питьевом водоснабжении, при концентрациях общей ртути от 0,1 до 5,0 мкг/дм куб.; 2 - определение содержания общей ртути после минерализации марганцовокислым калием и надсернокислым калием. Метод применяют для анализа природных, промышленных сточных вод и вод, предназначенных для хозяйственно-питьевых нужд, при концентрациях общей ртути более 0,2 мкг/дм куб.; 3 - определение содержания общей ртути после минерализации ультрафиолетовым облучением. Метод применяют для анализа питьевых вод и вод, предназначенных для производства напитков в пищевой промышленности. Метод позволяет определять массовую концентрацию общей ртути более 0,1 мкг/дм куб

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Format: Electronic (pdf/doc)

Approved: Federal Agency for Technical Regulation and Metrology, 12/12/2012

SKU: RUSS63816

Price: $280.17



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The Product is Contained in the Following Classifiers:

Construction (Max) » Standards » Other state standards used in construction » 13 Environmental protection, protection of people from environmental exposure. Security »

Evidence base (TR CU, Technical Regulation of the Customs Union) » 007/2011 TR CU. On safety of products intended for children and adolescents » Regulations and standards (to TR CU 007/2011) »

Evidence base (TR CU, Technical Regulation of the Customs Union) » 008/2011 TR CU. About toy safety » Regulations and standards (to TR CU 008/2011) »

Evidence base (TR CU, Technical Regulation of the Customs Union) » 019/2011 TR CU. On safety of personal protective equipment » Regulations and standards (to ТР ТС 019/2011) »

Evidence base (TR CU, Technical Regulation of the Customs Union) » 044/2017 TR EAEU. On safety of packaged drinking water, including natural mineral water » Regulations and standards (to 044/2017 TR EAEC) »

PromExpert » SECTION V. ENVIRONMENTAL PROTECTION. NATURE USE » II Ensuring environmental safety » 2 Protection and protection of surface water bodies » 2.2 Rationing impact on water bodies » 2.2.1 Rationing of quality of water bodies » 2.2.1.1 General requirements for composition and properties of surface waters »

PromExpert » SECTION V. ENVIRONMENTAL PROTECTION. NATURE USE » II Ensuring environmental safety » 2 Protection and protection of surface water bodies » 2.1 Management in use and protection of water bodies » 2.1.2 Production and public control infield of use and protection of water bodies »

ISO classifier » 13 ENVIRONMENTAL PROTECTION, HUMAN PROTECTION AGAINST ENVIRONMENTAL IMPACT. SECURITY » 13.060 Water quality » 13.060.50 Examination of water to determine content of chemicals »

National standards » 13 ENVIRONMENTAL PROTECTION, HUMAN PROTECTION AGAINST ENVIRONMENTAL IMPACT. SECURITY » 13.060 Water quality » 13.060.50 Examination of water to determine content of chemicals »

National Standards for KGS (State Standards Classification) » Latest edition » N Food and taste products » N0 General rules and regulations for food industry » N09 Test methods. Packaging. Marking »


The Document References:

GOST 1.0-92: State System for Standardization of Russian Federation. Basic principles

GOST 1.2-2009: Interstate system for standardization. Interstate standards, rules and recommendations on interstate standardization. Rules for development, taking over, application, renovation and cancellation

GOST 10157-79: Gaseous and liquid argon. Specifications

GOST 11125-84: Super pure nitric acid. Specifications

GOST 14261-77: Hydrochloric acid super pure. Specifications

GOST 14262-78: Super pure sulphuric acid. Specifications

GOST 14919-83: Household electric ranges, electric plates and electric frying ovens

GOST 17.1.5.05-85: Nature protection Hydrosphere General requirements for surface and sea waters, ice and atmospheric precipitation sampling

GOST 1770-74: Laboratory volumetric glassware. Cylinders, beakers, measuring flasks, test tubes. General specifications

GOST 20490-75: Reagents. Potassium permanganate. Specifications

GOST 24104-2001: Laboratory scales. General technical requirements

GOST 25336-82: Laboratory glassware and equipment. Basic parameters and dimensions

GOST 27384-2002: Water. Rates of measurement error of characteristics of composition and properties

GOST 28498-90: Liquid-in-glass thermometers

GOST 29227-91: Laboratory glassware. Graduated pipettes. Part 1. General requirements

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

GOST 3118-77: Reagents. Hydrochloric acid. Specifications

GOST 31861-2012: Water. General requirements for sampling

GOST 31862-2012: Drinking water. Sampling

GOST 4146-74: Reagents. Potassium persulphate. Specifications

GOST 4159-79: Reagents. Iodine. Specifications

GOST 4204-77: Reagents. Sulphuric acid. Specifications

GOST 4220-75: Reagents. Potassium bichromate. Specifications

GOST 4232-74: Reagents. Potassium iodide. Specifications

GOST 4328-77: Reagents. Sodium hydroxide. Specifications

GOST 4461-77: Reagents. Nitric acid. Specifications

GOST 5456-79: Reagents. Hydroxilamine hydrochloride. Specifications

GOST 6709-72: Distilled water. Specifications

GOST 9293-74: Gaseous and liquid nitrogen. Specifications

GOST ISO/IEC 17025-2009: General requirements for the competence of testing and calibration laboratories

GOST ISO/IEC 17025-2019: General competency requirements for testing and calibration laboratories

GOST R 51212-98: Drinking water. Methods for determination of total mercury by flameless atomic absorption spectrometry

GOST R 52501-2005: Water for analytical laboratory use. Specifications

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

GOST R ISO 5725-6-2002: Accuracy (trueness and precision) of measurement methods and results. Part 6. Use in practice of accuracy values

R 50.1.060-2006: Statistical methods. Guidance for the use of repeatability, reproducibility and trueness estimates in measurement uncertainty estimation

RMG 76-2004: State system for ensuring the uniformity of measurements. Internal control of quantitative chemical analysis result's accuracy

The Document is Referenced By:

Decision 164: On the list of standards, the application of which on a voluntary basis ensures compliance with the requirements of technical regulations of the Eurasian Economic Union "On safety of packaged drinking water, including natural mineral water" (TR EAEU 044/2017), and the list of standards containing rules and methods of research (tests) and measurements, including rules of sampling, necessary for the application and implementation of the technical regulations of the Eurasian Economic Union "On safety of packaged drinking water, including natural mineral water

Decision 30: On approval of the list of products in respect of which the customs declaration is accompanied by a document about the conformity assessment requirements of the technical regulations of the Customs Union "On safety of agricultural and forestry tractors and trailers to them" (TR TS 031/2012) (as amended on March 21, 2017)

Decision 30: On the list of international and regional (interstate) standards, and in their absence - national (state) standards, resulting in voluntary compliance with the requirements of technical regulations of the Customs Union "On Personal Protective Equipment Safety" (TR CU 019/2011), and the list of international and regional (interstate) standards, and in their absence - national (state) standards, containing rules and methods of research (tests) and measurements, including

Decision 31: On the list of international and regional (interstate) standards, and in their absence - national (state) standards, through the application of which on a voluntary basis compliance with the requirements of the technical regulations of the Customs Union "On safety of products designed for children and adolescents" (TR CU 007/2011), and the list of international and regional (interstate) standards, and in their absence - national (state) standards, containing rules and methods of research (tests) and the

Decision 31: On amendments to the technical regulation of the Customs Union "On safety of railway transport infrastructure" (TR CU 003/2011)

GOST 34901-2022: Medical devices. System for evaluation of biological effect. General requirements for research (tests)

GOST R 54316-2011: Drinking natural mineral waters. General specifications

GOST R 54316-2020: Mineral natural drinking water. General specifications

GOST R 58914-2020: Solid mineral fuel. Determination of the yield and composition of water-soluble forms of substances

GOST R 702.1.010-2020: Russian quality system. Packaged still drinking water. Consumer testing

KMS 1020:2014: Soft drinks, coupage syrups and bottled table water of the company "Coca Cola". General specifications

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