GOST 12341-81

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  ГОСТ 12341-81

GOST 12341−81 Platinum bullion. Specifications (with Amendments No. 1, 2, 3)

GOST 12341−81
Group W51

INTERSTATE STANDARD
PLATINUM BULLION
Specifications
Platinum in ingots. Specifications

GST 17 5120

Date of introduction 1983−01−01

INFORMATION DATA

1. DEVELOPED AND INTRODUCED by the Ministry of nonferrous metallurgy of the USSR

2. APPROVED AND put INTO EFFECT by Decision of the USSR State Committee for standards from 03.12.81 N 5230

Change No. 3 adopted by the Interstate Council for standardization, Metrology and certification (Protocol No. 12, 21.11.97)

The adoption of the changes voted:

3. REPLACE GOST 12341−66

4. REFERENCE NORMATIVE AND TECHNICAL DOCUMENTS

5. Limitation of actions taken by Protocol No. 2−92 of the Interstate Council for standardization, Metrology and certification (ICS 2−93)

6. EDITION with Amendments No. 1, 2, 3, approved in June 1987, February 1993, April 1998 (IUS 9−87, 9−93, 7−98)


This standard applies to affilirovannuju platinum bullion intended for the manufacture of alloys, chemicals and other purposes, and establishes requirements / platinum, manufactured for the needs of the national economy and exports.
(Changed edition, Rev. N 1, 2).

1. TECHNICAL REQUIREMENTS

1.1. Platinum bullion is made in accordance with the requirements of this standard for technological regulations approved in the prescribed manner.

Platinum in ingots manufactures brands of PLA-0, PLA-1 and PLA-2.

OKP codes for platinum bullion stamps:

PLA-0 — 17 5121 0004 02;

PLA-1 — 17 5121 0005 01;

PLA-2 — 17 5121 0006 00.
(Changed edition, Rev. N 2, 3).

1.2. Chemical composition of platinum in ingots must conform to the standards specified in the table.

Notes:

1. Mass fraction of silver, magnesium, zinc, copper, Nickel Marche PLA-2 is not rated but is determined by the manufacturer for the accumulation of statistical data.

2. By agreement with the consumer allowed the expansion of the number of determined elements, not shown in the table, and the establishing of norms determined by the method of the manufacturer.
(Changed edition, Rev. N 2).

1.3. Platinum made in the form of rectangular bars with a length of (100±3) mm, width (65±2) mm.
Weight of the ingot shall be not more than 5.5 kg.

1.4. The surface of ingots shall be clean and processed by cutting or grinding.
Foreign inclusions are not allowed.
The surface roughness should be not more than 80 µm according to GOST 2789.
Allowed Stripping of individual surface damage. The depth of the denuded areas on the surface of ingots shall not exceed 1 mm.
Allowed by agreement between manufacturer and consumer the production of platinum in ingots with other dimensions and mass.
(Changed edition, Rev. N 1, 2).

2. ACCEPTANCE RULES

2.1. Platinum bullion apply to the acceptance of the parties. The party must consist of one of metal melting, of the same brand and designed a quality document and specification.
(Changed edition, Rev. N 2).

2.1.1. The document about quality should contain:
— trademark or a trademark and the name of the manufacturer;
— the name of the metal and its brand;
— the batch number;
— mass fraction of platinum, %;
— mass fraction of each determined by the impurity, %;
room specifications;
— the year of issue;
the seal (stamp) of the technical control Department;
— the designation of this standard.
The mass of the party must be not more than 350 kg.

2.1.2. Specification must contain:
— trademark or a trademark and the name of the manufacturer;
— the name of the metal and its brand;
room specifications;
— the batch number;
— the year of issue;
— the numbers of places;
— number of ingots;
the mass of each ingot, g;
— mass fraction of platinum in each ingot, %;
— mass fraction of each impurity determined in each ingot, %;
— total weight of batch, g;
— the designation of this standard.

2.1.1, 2.1.2. (Changed edition, Rev. N 1, 2).

2.2. Control of surface quality and dimensions are subjected to every ingot of the party.

2.3. To check the chemical composition of platinum select a sample from each ingot of the party.

2.4. If unsatisfactory results of the analysis of the chemical composition of at least one of the indicators it is carried out re-tests on twice the number of samples taken from the same batch.
The results of repeated tests apply to the entire party.

3. TEST METHODS

3.1. Quality control of the surface of the platinum bullion is carried out without the use of magnifying devices.

3.2. Control the size of ingots is carried out using a measuring instrument provides the necessary precision.

3.3. To check the chemical composition of platinum ingot from each batch sampled in the form of chips no larger than 1 mm.
The mass of the finished sample from the party must be at least 90
Allowed the selection of the sample prepared from the melt with obtaining tablets or cores for spectral analysis.

The shelf life of the samples three months from the date of dispatch of the products to the consumer.
(Changed edition, Rev. N 1, 2).

3.4. Chemical composition analysis of platinum is carried out according to GOST 12226.

3.5. The weight of ingots is carried out by weighting according to normative-technical documentation.

4. MARKING, PACKAGING, TRANSPORTATION AND STORAGE

4.1. The front surface of each ingot is applied to the seal, which shall contain the following details:
— trademark of the manufacturer (in the upper left corner);
number (code) of the ingot (under the trademark);
— state symbols manufacturer in Russian or English language, located in the ellipse (lower left corner);
— the symbol «» (upper right corner);
— mass fraction of platinum, % (under the symbol);
weight of ingot, g or (in the lower right corner).
Permitted additional stigma.
(Changed edition, Rev. N 3).

4.2. Platinum bullion intended for export, Packed in wooden crates or boxes made of other materials, accompanied by documentation in accordance with the order of foreign trade enterprises.

(Changed edition, Rev. N 2).

4.3. Platinum bullion are placed in wooden boxes according to normative-technical documentation, pasted inside the foam or the soft cloth of synthetic fiber or metal containers with wooden shells according to normative-technical documentation.
Bars in the containers placed in rows along the height of the wooden shell. Between the horizontal rows of the bars is placed a strip of cardboard according to GOST 9347.
Each box or container sealed with the seals of the shop of the manufacturer and the technical control Department of the manufacturer. The seals on the boxes must be suspended through the hole through the bolt after the nut is wrapped up and needs to get out of the groove on the lid of the box.
The containers are sealed cover of the castle nests.

4.4. On each box or container and label with the number of specifications and numbers.

4.5. Storage and transportation of ingots is carried out in accordance with the requirements of the Federal financial bodies.
(Changed edition, Rev. N 2, 3).