GOST 25474-2015

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  ГОСТ 25474-2015

GOST 25474−2015 Anodes silver. Specifications

GOST 25474−2015

INTERSTATE STANDARD

ANODES SILVER

Specifications

Silver anodes. Specifications

ISS 77.150.99
GST 18 6210

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. Interstate standards, rules and recommendations on interstate standardization. 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 519-St inter-state standard GOST 25474−2015 introduced as a national standard of the Russian Federation from 1 January 2017.

5 REPLACE GOST 25474−82


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 applies to silver anodes made in the form of stripes by the processing of ingots (plates) silver by pressure and is intended for plating articles with silver.

2 Normative references

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

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

GOST 427−75 Rulers measuring metal. Specifications

GOST 6507−90 Micrometers. Specifications

GOST 8273−75 wrapping Paper. Specifications

GOST 14192−96 Marking of cargo

GOST 15150−69 Machines, instruments and other technical products. Versions for different climatic areas. Categories, conditions of use, storage and transportation of the impact of climatic factors of the external environment

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».


GOST 28353.0−89 Silver. 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».


GOST 28353.1−89 Silver. Method of atomic-emission analysis
________________
In the Russian Federation also acts GOST R 56142−2014 «Silver. Method of atomic-emission analysis with arc excitation spectrum."
In the Russian Federation also acts GOST R 56307−2014 «Silver. Method of atomic-emission analysis with spark excitation spectrum."


GOST 28353.2−89 Silver. Method of atomic-emission analysis with inductive plasma
________________
In the Russian Federation also acts GOST R 56307−2014 «Silver. Method of atomic-emission analysis with spark excitation spectrum."
In the Russian Federation also acts GOST R 56306−2014 «Silver. Method of atomic-emission analysis with inductively coupled plasma».


GOST 28353.3−89 Silver. Method of atomic-absorption analysis
________________
In the Russian Federation also acts GOST R 56307−2014 «Silver. Method of atomic-emission analysis with spark excitation spectrum."
In the Russian Federation also acts GOST R 56308−2014 «Silver. Method of atomic-absorption 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 Terms and definitions

This standard applies the following terms with respective definitions:

3.1 dent: Local deepening of various sizes and shapes with sloping edges.

3.2 Burr: the Defect surface, which is a sharp in the form of a crest of the protrusion formed by cutting metal.

3.3 strain: Defect surface in the form of local closed the gap located transversely or at an angle to the direction of rolling.

3.4 captivity: the Defect of the surface in the form of delamination most often azkabanu shape, elongated in the warp direction and United with the base metal on one side.

3.5 stratification: a Defect in the form of a separating layer (s) of the metal at the ends and/or edges of the anode.

3.6 traces of Stripping: the surface defects in the form of areas with high surface roughness formed after the Stripping of the anode abrasive tool.

3.7 traces of podstanovki: the Defect of the surface in the form of grooves alternately in two mutually perpendicular directions, formed after the Stripping of the anode scraper.

3.8 crack: a Defect of a surface which is a closed rupture of the metal.

3.9 scratch: the surface defects in the form of indentations of irregular shape and an arbitrary direction.

3.10 color tint: Defect formed on the smooth surface of the anode by forming a thin transparent surface oxide layer and light interference in it.

4 symbols and abbreviations

The legend of anodes are placed according to the scheme: