GOST 33731-2016

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  ГОСТ 33731-2016

GOST 33731−2016 Platinum. Method of atomic-emission analysis with spark excitation spectrum

GOST 33731−2016

INTERSTATE STANDARD

PLATINUM

Method of atomic-emission analysis with spark excitation spectrum

Platinum. Method of spark atomic-emission analysis

ISS 39.060

Date of introduction 2017−01−01

Preface

Goals, basic principles and main procedure of works on interstate standardization have been established in GOST 1.0−2015 «interstate standardization system. Basic provisions» and GOST 1.2−2015 «interstate standardization system. Interstate standards, rules and recommendations on interstate standardization. Rules of development, adoption, renewal and cancellation"

Data on standard

1 DEVELOPED by the Open joint-stock company «Krasnoyarsk nonferrous metals plant them.In.N. Gulidova» (OJSC «Krastsvetmet»), Open joint-stock company «Prioksky nonferrous metals plant» (OJSC pztsm), Federal state institution «Public institution on formation of the State Fund of precious metals and precious stones of the Russian Federation, storage, holiday and use of precious metals and precious stones (Gokhran of Russia) under the Ministry of Finance of the Russian Federation"

2 SUBMITTED by the Technical Committee for standardization MTK 102 «Platinum metals"

3 ACCEPTED by the Interstate Council for standardization, Metrology and certification (Protocol dated February 29, 2016 N 85-P)

The adoption voted:

4 by Order of the Federal Agency for technical regulation and Metrology of 9 June 2016 N 588-St inter-state standard GOST 33731−2016 introduced as a national standard of the Russian Federation from 1 January 2017.

5 Prepared on the basis of application of GOST R 52521−2006*
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* By order of the Federal Agency for technical regulation and Metrology from 09 June 2016 N 588-St GOST R 52521−2006 abolished from 1 January 2017.

6 INTRODUCED FOR THE FIRST TIME


Information about introduction in action (termination) of this standard is published in the index «National standards». Information about the amendments to this standard is published in the index «National standards», and the text changes — in the information sign «National standards». In case of revision or cancellation of this standard the appropriate information will be published in the 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 applies to platinum bullion and powder with a mass fraction of platinum not less than 99.8%, designed for the production of alloys, semi-finished products, chemical compounds of platinum and other purposes.

This standard specifies atomic emission (spark excitation spectrum) method for the determination of mass fractions of impurities of aluminum, bismuth, tungsten, Germany, iron, gold, iridium, cadmium, calcium, cobalt, silicon, magnesium, manganese, copper, molybdenum, arsenic, Nickel, tin, osmium, palladium, rhodium, ruthenium, lead, selenium, silver, antimony, tellurium, titanium, chromium, zinc and zirconium in platinum.

2 Normative references

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

GOST 8.010−2013State system for ensuring the uniformity of measurements. The techniques of measurements. The main provisions of the
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In Russian Federation along with the specified valid GOST R 8.563−2009"State system for ensuring the uniformity of measurements. Techniques (methods) of measurements».


GOST 5556−81 Wool medical hygroscopic. Specifications

GOST 6709−72 distilled Water. Specifications

GOST 10157−79 Argon gaseous and liquid. Specifications

GOST 14261−77 hydrochloric Acid of high purity. Specifications

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


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

GOST 29298−2005 cotton and mixed household. General specifications

GOST 31290−2005 Platinum affilirovannaja. Specifications

GOST ISO 5725−1-2003Accuracy (trueness and precision) of methods and measurement results. Part 1. General provisions and definitions
________________
In the Russian Federation GOST R ISO 5725−1-2002 «Accuracy (trueness and precision) of methods and measurement results. Part 1. General provisions and definitions».


GOST ISO 5725−2-2003Accuracy (trueness and precision) of methods and measurement results. Part 2. The basic method for the determination of repeatability and reproducibility of a standard measurement method
________________
In the Russian Federation GOST R ISO 5725−2-2002 «Accuracy (trueness and precision) of methods and measurement results. Part 2. The basic method for the determination of repeatability and reproducibility of a standard measurement method».


GOST ISO 5725−3-2003Accuracy (trueness and precision) of methods and measurement results. Part 3. Intermediate indicators the precision of a standard measurement method
________________
In the Russian Federation GOST R ISO 5725−3-2002 «Accuracy (trueness and precision) of methods and measurement results. Part 3. Intermediate indicators the precision of a standard measurement method».


GOST ISO 5725−4-2003Accuracy (trueness and precision) of methods and measurement results. Part 4. The main methods of determining the correctness of a standard measurement method
________________
In the Russian Federation GOST R ISO 5725−4-2002 «Accuracy (trueness and precision) of methods and measurement results. Part 4. The main methods of determining the correctness of a standard measurement method».


GOST ISO 5725−6-2003Accuracy (trueness and precision) of methods and measurement results. Part 6. The use of precision values in practice
________________
In 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 OIML R 76−1-2011 State system for ensuring the uniformity of measurements. Scales non-automatic actions. Part 1. Metrological and technical requirements. Test

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 relevant 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 Terms and definitions

This standard applies the terminology and definitions GOST ISO 5725−1 and GOST 8.010.

4 the essence of the method

The method of analysis is based on the evaporation and excitation of the atoms of the sample in the spark discharge, the photoelectric registration of spectrum, measuring the intensity of the analytical lines of the determined elements-impurities and background and subsequent determination of the mass fraction of these impurities in the calibration characteristics. The method allows to determine the mass fraction of impurity elements in the ranges shown in table 1, with indicators of the accuracy of the method of analysis specified in table 2.


Table 1 — Ranges of definition of mass fraction of impurity elements

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