GOST 3193-2015

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  ГОСТ 3193-2015

GOST 3193−2015 Mesh catalyst alloy based on platinum. Specifications

GOST 3193−2015

Group В76

INTERSTATE STANDARD

GRID ALLOY CATALYST OF PLATINUM-BASED

Specifications

Platinum base alloys catalytic gauzes. Specifications

ISS 77.150.99
OKP 19 9564

Date of introduction 2017−01−01

Preface

Goals, basic principles and main procedure of works on interstate standardization have been established in GOST 1.0−97* «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"
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* Probably, the error of the original. Should read: GOST 1.0−92. — Note the manufacturer’s database.


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

3 ACCEPTED by the Interstate Council for standardization, Metrology and certification (Protocol dated 27 October 2015 N 81-P)

The adoption voted:

4 by Order of the Federal Agency for technical regulation and Metrology of June 3, 2016 N 514-St inter-state standard GOST 3193−2015 introduced as a national standard of the Russian Federation from 1 January 2017.

5 REPLACE GOST 3193−74

Information about the changes to this standard is published in the annual reference index „National standards“, and the text changes and amendments — inmonthly 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 woven and knitted mesh catalyst of alloys based on platinum (hereinafter — the grid) used in the chemical industry as catalysts.

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 4381−87 Micrometers lever. General specifications

GOST 7502−98 metallic measuring tape. Specifications

GOST 8273−75 wrapping Paper. Specifications

GOST 10197−70 Stands-tripods for the measuring heads. Specifications

GOST 10354−82 polyethylene Film. Specifications

GOST 12556.1−82 Alloys platinum-rhodium. Method for the determination of rhodium

GOST 12556.2−82 Alloys platinum-rhodium. Methods of spectral analysis

GOST 13498−2010 Platinum and alloys on its basis. Brand

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 22864−84* Noble metals and their alloys. General requirements for methods of analysis
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In Russian Federation along with the above mentioned acts GOST R 52599−2006"Precious metals and their alloys. General requirements for methods of analysis».

* Probably, the error of the original. Should read: GOST 22864−83. — Note the manufacturer’s database.


GOST 28798−90 Head of the measuring spring. General specifications

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 published annually by the information sign «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 replaced without replacement, the position in which reference is made to it is applied in the part concerning this link.

3 Terms and definitions

This standard applies the following terms with respective definitions:

3.1 dent: the Defect of the surface in the form of randomly-located indentations of various shapes and sizes with smooth edges.

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

3.3 impurity: Defect surface in the form of inclusion of metallic or non-metallic foreign bodies (particles) of various shapes and sizes.

3.4 shell: the surface defects in the form of a single elongated recess or a point shape from chipping of foreign objects or opening of the gas bubble.

3.5 stratification: the surface defects in the form of separation layer (s) metal, oriented along the direction of deformation.

3.6 trace Stripping: the surface defects in the form of area with increased roughness, formed after Stripping the wire of the abrasive tool.

3.7 scratch: the surface defects in the form of indentations of irregular shape and an arbitrary direction, the resulting mechanical damage, including during storage and transportation.

4 Classification

4.1 the method of manufacture of the grid are divided as follows:

— woven — educated cross-weave wires of the base (wires running along the mesh) with the weft wires (wires perpendicular to the fiber mesh);

— knitted — formed by bending the wire in loops, with the subsequent interweaving of them together.

4.2 surface preparation method:

without surface activation;

— activating the surface by a flame of hydrogen;

— electrochemical activation of the surface.

4.3 the designation of the meshes are given in Appendix A.

5 Technical requirements

5.1 Main parameters and characteristics (properties)

5.1.1 Mesh shall conform to the requirements of this standard and be manufactured according to the technological regulations approved in the prescribed manner.

5.1.2 produce Woven wire mesh plain weave with square cells of type TK. Parameters and basic dimensions of the grids must meet the requirements specified in figure 1 and in table 1.

5.1.3 Types of knitting and wire diameter for making a knitted mesh shall conform to the requirements specified in table 2.

5.1.4 Shape and dimensions of the grids must meet the requirements specified in table 3.

5.1.5 Mesh, the perimeter needs to be expanded, hammered or framed by the Board of the same mesh. The width of the border shall conform to the requirements specified in table 3.

5.1.6 Mesh with a diameter of 2000 to 3000 mm inclusive can be manufactured in two parts, connected by a welded seam mesh having a diameter greater than 3000 mm — three parts connected by two welds. Joint width shall conform to the requirements given in table 3.

Figure 1 Mesh of the type TK

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* Dimensions for reference.

Figure 1 Mesh of the type TK

Table 1

Table 2