GOST 28058-89

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  ГОСТ 28058-89

GOST 28058−89 Gold bullion. Specifications (with Amendments No. 1, 2)

GOST 28058−89

Group W51

INTERSTATE STANDARD

GOLD BULLION

Specifications

Gold in ingots.
Specifications

GST 17 5341

Date of introduction 1990−01−01

INFORMATION DATA

1. DEVELOPED AND INTRODUCED the Main Directorate of precious metals and diamonds at the Council of Ministers of the USSR

2. APPROVED AND put INTO EFFECT by Decision of the USSR State Committee for standards from 23.03.89 N 618

The change in N 1 taken by the Interstate Council for standardization, Metrology and certification (minutes N 11 dated 25.04.97)

Was the Technical Secretariat of MGS N 2521

The adoption of the changes voted:

3. INTRODUCED FOR THE FIRST TIME

4. REFERENCE NORMATIVE AND TECHNICAL DOCUMENTS

(Changed edition, Rev. N 2).

5. Limitation of actions taken by Protocol No. 4−93 of the Interstate Council for standardization, Metrology and certification (ICS 4−94)

6. EDITION with Change No. 1 adopted in September 1997 (IUS 12−97)

The Change No. 2 adopted by the Interstate Council for standardization, Metrology and certification (Protocol No. 30 dated 07.12.2006). The state developed by Russia. Promulgated by the order of Rosstandart dated 15.02.2007 N 14 St from 01.01.2008

Change No. 2 made by the manufacturer of the database in the text IUS N 5, 2007


This standard applies to refined gold bars, manufactured for the needs of the national economy and exports.

1. TECHNICAL REQUIREMENTS

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

1.2. Basic parameters and dimensions

1.2.1. Gold bars must have the shape of a regular truncated pyramid with dimensions, mm:

254±5 — the length of the larger base;

88±5 — width of the larger base;

229±5 — length of the smaller base;

59±5 — width of the smaller base;

35±2 — height.

(Changed edition, Rev. N 2).

1.3. Features

1.3.1. Gold bullion manufactured brands: Zla-1P, Evil 1, Evil 2 and Evil 3.

1.3.2. The chemical composition of the gold bullion must meet the specified in the table.

Continued

Continued

1.3.3. The gold bars produced weight of 11000,0 to 13300,0 G.

By agreement with the consumer it is allowed manufacture of ingots of different mass.

1.3.1.-1.3.3. (Changed edition, Rev. N 1).

1.3.4. The surface of the ingots must be free of burrs, burrs, grease, slag and other foreign inclusions.

Allowed denuded areas on the surface of the ingot to a depth of not more than 1 mm and the concavity of the shrinkage of the metal to a depth of not more than 5 mm.

1.4. Marking

On a larger base of each ingot should be stamped:

the number of the ingot;

the symbolism of the state of manufacture;

trademark of the manufacturer;

mark gold;

mass fraction of gold;

the mass of the ingot;

the year of issue.

1.5. Packaging

1.5.1. Gold bars are Packed in containers or wooden boxes according to normative-technical documentation. Containers or boxes sealed.

Allowed to use a different kind of packaging, ensuring the safety bars.

1.5.2. For each container or box and label with the number of specifications and numbers.

2. ACCEPTANCE

2.1. Gold bullion accepted by the parties. The weight of the batch is not more than 550 kg.

The party should consist of a metal of the same brand and the same bottoms and decorated with a single document about quality that contains:

trademark or name of the manufacturer and trademark;

the brand of gold;

batch number;

rooms bars;

the results of chemical analysis;

room specifications;

the designation of the standard;

year of manufacture;

and specification, containing:

the name of the manufacturer;

the brand of gold;

rooms bars;

the mass of each ingot, g;

mass fraction of gold in each bullion, %;

the gold weight of each ingot, g;

total weight of gold on the specification;

batch numbers;

room specifications;

the designation of the standard;

the year of issue.

2.2. Control of surface quality, marking and the mass is subjected to every ingot.

2.3. Manufacturer to determine the chemical composition takes samples from the molten metal in the middle of bottling party of gold bullion.

User to check the chemical composition takes samples from 10% of the ingots from the party, but not less than two.

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. Chemical composition is determined by GOST 27973.0 — GOST 27973.3 or other methods providing the required accuracy.

The consumer to determine the chemical composition of the selected sample by drilling a carbide drill with a diameter of not less than 6 mm from two opposite corners and sides of the ingot to a depth of half the thickness of the ingot. The sample mass not exceeding 25 g.

If there is disagreement in the assessment of the chemical composition, the analysis is carried out according to GOST 27973.0 — GOST 27973.3.

(Changed edition, Rev. N 1).

3.2. The mass of ingots checked on a laboratory balance high precision class according to GOST 24104.

(Changed edition, Rev. N 2).

3.3. Control of surface quality and marking is carried out without the use of magnifying devices.

3.4. Shelf life of samples — at least three months from the date of dispatch of the products.

(Changed edition, Rev. N 2).

4. TRANSPORTATION

Transportation and storage of gold bars produced in accordance with the procedure of transportation and storage, approved by the relevant Department of the state of the manufacturer.

(Changed edition, Rev. N 1).