GOST 27981.2-2015

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  ГОСТ 27981.2-2015

GOST 27981.2−2015 Copper of high purity. Method of chemical-atomic-emission analysis

GOST 27981.2−2015

INTERSTATE STANDARD

HIGH PURITY COPPER

Method of chemical-atomic-emission analysis

High purity oopper. Method of chemical-atomic-emission analysis

ISS 77.120.30

Date of introduction 2016−11−01

Preface

Goals, basic principles and main procedure of works on interstate standardization have been established in GOST 1.0−92 «interstate standardization system. Basic provisions» and GOST 1.2−2009 «interstate standardization system. Interstate standards, rules and recommendations on interstate standardization. Rules of development, adoption, application, renewal and cancellation"

Data on standard

1 DEVELOPED by the Technical Committee for standardization TC 368 «Copper"

2 recorded by the Interstate technical Committee for standardization MTK 503 «Copper"

3 ACCEPTED by the Interstate Council for standardization, Metrology and certification (minutes of August 27, 2015 N 79-P)

The adoption voted:

4 by Order of the Federal Agency for technical regulation and Metrology dated 17 February 2016 N 51 St interstate standard GOST 27981.2−2015 promulgated as the national standard of the Russian Federation from November 1, 2016.

5 REPLACE GOST 27981.2−88


Information about the changes to this standard is published in the annual reference index «National standards», and the text changes and amendments — in monthly information index «National standards». In case of revision (replacement) or cancellation of this standard a notification will be published in the monthly information index «National standards». Relevant information, notification and lyrics are also posted in the information system of General use — on the official website of the Federal Agency for technical regulation and Metrology on the Internet

1 Scope

This standard specifies the chemical-atomic emission method of measuring a mass fraction of impurities in the copper in the ranges presented in table 1.


Table 1 — the measurement Range of mass fraction of components in copper

General requirements for methods of measurements, security, accuracy control of measurement results in accordance with GOST and GOST 25086 31382.

2 Normative references

This standard uses the regulatory references to the following international standards:

GOST 83−79 Reagents. Sodium carbonate. Specifications

GOST 123−2008 Cobalt. Specifications

GOST 849−2008 Nickel primary. Specifications

GOST 859−2014 Copper. Brand

GOST 860−75 Tin. Specifications

GOST 1467−93 Cadmium. Specifications

GOST 1770−74 (ISO 1042−83, ISO 4788−80) Glassware volumetric laboratory glass. Cylinders, beakers, flasks, test tubes. General specifications

GOST 2603−79 Reagents. Acetone. Specifications

GOST 3640−94 Zinc. Specifications

GOST 4233−77 Reagents. Sodium chloride. Specifications

GOST ISO 5725−6-2003 Accuracy (trueness and precision) of methods and measurement results. Part 6. The use of precision values in practice*
________________
* On the territory of the Russian Federation GOST R ISO 5725−6-2002 «Accuracy (trueness and precision) of methods and measurement results. Part 6. The use of precision values in practice».


GOST 6008−90 metallic Manganese and nitrated manganese. Specifications

GOST 6563−75 technical articles made of noble metals and alloys. Specifications

GOST 6709−72 distilled Water. Specifications

GOST 9147−80 Glassware and equipment lab porcelain. Specifications

GOST 9428−73 Reagents. Silicon (IV) oxide. Specifications

GOST 10928−90 Bismuth. Specifications

GOST 10929−76 Reagents. Hydrogen peroxide. Specifications

GOST 11125−84 nitric Acid of high purity. Specifications

GOST 14261−77 hydrochloric Acid of high purity. Specifications

GOST 18300−87 ethyl rectified technical. Specifications*
________________
* On the territory of the Russian Federation GOST R 55878−2013 «ethanol technical rectified hydrolysis. Technical conditions».

GOST 19908−90 Crucibles, bowls, beakers, flasks, funnels, test tubes and caps made of transparent quartz glass. General specifications

GOST 23463−79 Graphite powder of high purity. Specifications

GOST 24104−2001 laboratory Scales. General technical requirements*
________________
* On the territory of the Russian Federation GOST R 53228−2008 «Scales non-automatic actions. Part 1. Metrological and technical requirements. Test».


GOST 24363−80 Reagents. Potassium hydroxide. Specifications

GOST 25086−2011 non-ferrous metals and their alloys. General requirements for methods of analysis

GOST 25336−82 Glassware and equipment laboratory glass. The types, basic parameters and dimensions

GOST 29227−91 (ISO 835−1-81) oils. Pipettes are graduated. Part 1. General requirements

GOST 31382−2009 Copper. Methods of analysis

Note — When using this standard appropriate to test the effect of reference standards in the information system of General use — on the official website of the Federal Agency for technical regulation and Metrology on the Internet or in the annual information index «National standards» published as on January 1 of the current year, and the editions of the monthly information index «National standards» for the current year. If the reference standard is replaced (changed), when using this standard should be guided by replacing (amended) standard. If the reference standard is cancelled without replacement, then the situation in which the given link applies to the extent that does not affect this link.

3 Characteristics of measurement accuracy

The accuracy of measuring the mass fraction of components in the copper corresponds to the characteristics given in table 2 (at ).

Limit values of repeatability and reproducibility of measurement with confidence probability are given in table 2.


Table 2 — values of the indicator of measurement accuracy, limits of repeatability and reproducibility of measurements of mass fraction of components in copper with confidence