GOST 19738-2015

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  ГОСТ 19738-2015

GOST 19738−2015 the silver Solders. Brand

GOST 19738−2015

INTERSTATE STANDARD

THE SILVER SOLDERS

Brand

Silver solders. Marks

ISS 77.120.99

Date of introduction 2017−01−01

Preface

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

Data on standard

1 DEVELOPED by the Interstate technical Committee for standardization MTK 304 «Noble metals, alloys and industrial products», Joint-stock company «Ekaterinburg plant for processing non-ferrous metals"

2 as AMENDED by the Federal Agency for technical regulation and Metrology (Rosstandart)

3 ACCEPTED by the Interstate Council for standardization, Metrology and certification (minutes of February 27, 2015 N 75-P)

The adoption voted:

4 by Order of the Federal Agency for technical regulation and Metrology of June 3, 2016 N 517-St inter-state standard GOST 19738−2015 introduced as a national standard of the Russian Federation from 1 January 2017.

5 REPLACE GOST 19738−74


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 establishes the brand of silver solder, intended for the production of semi-finished products in the form of strips, wire, foil, forging billets, etc., used for soldering and tinning.

2 Normative references

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

GOST 16321.1−70 Silver-copper alloys. Method for determination of silver content

GOST 16321.2−70 Alloy silver-copper. Method of spectral analysis

GOST 16882.1−71 Silver-copper-phosphorus solders. Method of determining mass percentage of silver

GOST 16882.2−71 Silver-copper-phosphorus solders. Methods for determination of mass fraction of phosphorus, lead, iron and bismuth

GOST 16883.1−71 Silver-copper-zinc solders. Method of determining mass percentage of silver

GOST 16883.2−71 Silver-copper-zinc solders. The method of determining the mass fraction of copper

GOST 16883.3−71 Silver-copper-zinc solders. Spectral method for determination of lead, iron and bismuth

GOST 22864−83 precious metals and their alloys. General requirements for methods of analysis
_______________
In the Russian Federation GOST R 52599−2006 «Precious metals and their alloys. General requirements for 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 abbreviations and symbols

3.1 In the standard the following abbreviations are used:

to assign alloy: P — solder;

— to refer to metals: SR — silver, CD — cadmium, M — copper, — tin, — lead, su — antimony, p — phosphorus, C — zinc.

3.2 the symbol of the brand of solder consists of letters denoting the purpose of the alloy; of letters designating one or more components, followed by digits which indicate the nominal mass fraction of silver and the specified components in the solder in percent.

4 Requirements

4.1 Brand and chemical composition of silver solders must meet the requirements of table 1.

4.2 Chemical composition of solders determined according to GOST 16321.1, 16321.2 GOST, GOST 16882.1, 16882.2 GOST, GOST 16883.1, 16883.2 GOST, GOST 16883.3, GOST 22864.

Allowed to determine the chemical composition by other methods, certified in the prescribed manner and satisfies the requirements of this standard.

4.3 Properties of solders and recommendations for their use are given in appendices A and B.