GOST 10297-94

GOST 10297-94

INTERSTATE STANDARD

INDIUM

TECHNICAL SPECIFICATIONS

Official edition

INTERSTATE COUNCIL

ON STANDARDIZATION, METROLOGY AND CERTIFICATION

Minsk

GOST 10297-94

Preface

1 DEVELOPED BY the Eastern Research Mining and Metallurgical Institute of Non-Ferrous Metals (VNIITsvetmet)

SUBMITTED BY the State Standard of the Republic of Kazakhstan

2 ADOPTED by the Interstate Council for Standardization, Metrology and Certification on October 21, 1994 (protocol No. 6 of the IGS)

The following voted for adoption:

Name of the state	Name of the national standardization body
Republic of Azerbaijan Republic of Armenia Republic of Belarus Republic of Georgia Republic of Kazakhstan Kyrgyz Republic Republic of Moldova Russian Federation Republic of Uzbekistan Ukraine	Azgosstandard Armgosstandart Belstandart Gruzstandart State Standard of the Republic of Kazakhstan Kyrgyzstandard Moldovastandard State Standard of Russia Uzgosstandart State Standard of Ukraine

3 By the Resolution of the Committee of the Russian Federation for Standardization, Metrology and Certification dated 27.06.96 No. 434, the interstate standard GOST 10297-94 was put into effect directly as a state standard of the Russian Federation from 1 January 1997.

4 INSTEAD OF GOST 10297-75

5 RE-PRINT

This standard may not be fully or partially reproduced, replicated and distributed as an official publication on the territory of the Russian Federation without the permission of the State Standard of Russia.

GOST 10297-94

INTERSTATE STANDARD

INDIUM

Technical conditions

Indium. Specifications

Date of introduction 1997-01-01

1 Scope of application

This standard applies to high-purity and technical indium in ingots, pyramids and rods.

2 Normative references

This standard uses references to the following standards:

GOST 3.1120-83 ESTD. General rules for the reflection and execution of labor safety requirements in technological documentation

GOST 12.3.002-75 Occupational Safety Standards. Manufacturing processes. General safety requirements

GOST 2991-85 Non-collapsible wooden boxes for loads weighing up to 500 kg. General specifications

GOST 3282-74 General-purpose low-carbon steel wire. Specifications

GOST 3560-73 Steel packaging tape. Technical conditions

GOST 5959-80 Non-collapsible boxes made of sheet wood materials for cargo weighing up to 200 kg. General specifications

GOST 9078-84 Flat pallets. General specifications

GOST 9569-79 Waxed paper. Technical conditions

GOST 10354-82 Polyethylene film. Technical conditions

GOST 12645.0-83 India. General requirements for methods of analysis

GOST 12645.1-77 Indium. Spectral method for determination of gallium, iron, copper, nickel, tin, lead, thallium and zinc

GOST 12645.2-77 Indium. Spectral method for determination of mercury and cadmium

GOST 12645.3-77 Indium. Spectral method for determination of cadmium

GOST 12645.4-77 India. Chemical-spectral method for determination of aluminum, bismuth, cadmium, copper, manganese, nickel, lead, silver and zinc

GOST 12645.5-77 India. Methods for determination of arsenic

GOST 12645.6-77 Indium. Methods for determination of iron

GOST 12645.7-77 Indium. Methods for determination of zinc

GOST 12645.8-82 High-purity indium. Chemical-spectral method for determination of tin

GOST 12645.9-83 Indium. Chemical-spectral method for determination of thallium

GOST 12645.10-86 Indium. Method for determination of sulfur

GOST 12645.11-86 Indium. Method for determination of selenium

GOST 12645.12-86 Indium. Method for determination of tellurium

GOST 12645.13-87 Indium. Chemical-spectral method for determination of gallium

GOST 14192-96 Marking of cargo

GOST 21650-76 Means of fastening unit-size cargo in transport packages. General requirements

GOST 24597-81 Packages of unit-packaged cargo. Basic parameters and dimensions

GOST 24634-81 Wooden boxes for products supplied for export. General specifications.

GOST 10297-94

3 General technical requirements

3.1 Indium is manufactured in accordance with the requirements of this standard using technological documentation approved in the established manner.

3.2 The designation of brands and their chemical composition must comply with the requirements specified in Table 1.

Table 1 - Brands and chemical composition

In percentage

Designation of brands	Chemical composition
	Indium, not less	Mass fraction of impurities, no more than
		gland	cadmium	copper	arsenic	nickel	tin	mercury	lead	thallium
In0000 In000 In00 In0 In2	99,9999 99,9995 99,999 99,998 99.97	2·10 -5 2·10 -5 5·10 -5 5·10 -5 1·10 -3	3·10 -6 3·10 -6 1·10 -5 1·10 -4 4·10 -3	5·10 -6 8·10 -6 1·10 -5 1·10 -5 1·10 -3	5·10 -5 5·10 -5 5·10 -5 1·10 -4 1·10 -3	1·10 -5 2·10 -5 2·10 -5 4·10 -5 5·10 -4	3·10 -5 5·10 -5 1·10 -4 2·10 -4 2·10 -3	2·10 -5 2·10 -5 2·10 -5 4·10 -5 5·10 -3	2·10 -5 2·10 -5 1·10 -4 2·10 -4 5·10 -3	8·10 -5 - 1·10 -4 5·10 -4 1·10 -3

End of table 1 In percentage

Designation of brands	Chemical composition
	Mass fraction of impurities, no more than
	zinc	silver	aluminum	Gaul	magnesium	manganese	Selena	sulfur	tellurium	bismuth	Total standardized impurities
In0000 In000 In00 In0 In2	2·10 -5 2·10 -5 1·10 -4 1·10 -4 3·10 -3	1·10 -6 1·10 -6 1·10 -4 - -	1·10 -5 3·10 -5 1·10 -4 - -	5·10 -5 8·10 -5 - - -	3·10 -5 3·10 -5 3·10 -5 - -	1·10 -6 1·10 -6 - - -	5·10 -5 5·10 -5 - - -	5·10 -5 5·10 -5 - - -	1·10 -5 1·10 -5 - - -	3·10 -6 3·10 -5 - - -	1·10 -4 5·10 -4 1·10 -3 2·10 -3 3·10 -2

OKP codes are given in Appendix A.

3.3 The mass fraction of indium is determined by the difference between 100% and the sum of the standardized impurities.

3.4 Indium is supplied in the form of ingots or pyramids weighing:

from 0.05 to 1 kg - for indium grades In0000 and In000;

no more than 3 kg - for other brands.

By agreement between the manufacturer and the consumer, delivery of indium grade In0000 from 20 to 50 g is permitted.

Indium grade In000 is also supplied in the form of ingots obtained by drawing using the Czochralski method, weighing no more than 2.5 kg.

At the request of consumers, indium grade In00 is supplied in the form of rods with a diameter of 21-25 mm, a length of 50-70 mm and cylindrical ingots with a length of 63-67 mm, a diameter of 22-24 mm or a length of 50-70 mm, a diameter of 21-25 mm.

3.5 The surface of ingots and pyramids must be free of foreign inclusions; shrinkage cavities and irregularities are allowed.

3.6 Each indium ingot of grades In00, In0 and In2 is marked with the manufacturer's symbol, the indium grade and the batch number.

For indium grades In0000 and In000, the designations, as well as the weight of the ingot and the date of manufacture, are indicated on the label.

3.7 Each indium ingot of grades In0000 and In000 is packed in a bag made of polyethylene film (the total mass of indium ingots of grade In0000 in one package for packaging from 20 to 50 g is not

GOST 10297-94

must exceed 1 kg) and brewed. The packed ingot together with the label is placed in a plastic bag and brewed.

Ingots, pyramids and rods of indium grades In00, In0 and In2 are packed in polyethylene film bags and welded.

Each package contains no more than two ingots or pyramids. Indium ingots and pyramids of grade In2 may be packed in polyethylene film or waxed paper according to GOST 9569.

3.8 Packaged indium is supplied in boxes of type I according to GOST 2991 or types I, II-1 and II-2 according to GOST 5959 and, if necessary, compacted with cotton wool or other soft material.

Indium intended for export is supplied in type I boxes in accordance with GOST 2991 with additional requirements in accordance with GOST 24634 and is accompanied by documentation in accordance with the terms of the agreement (contract) between the enterprise and the foreign economic organization or foreign buyer.

The gross weight of the box must not exceed 35 kg.

3.9 Boxes with indium are formed into packages in accordance with GOST 24597 on pallets of types P2, P4 or 2P4 according to GOST 9078. The overall dimensions of the packages according to GOST 24597 should not exceed 1240 × 840 × 1350 mm. The gross weight of the package should not exceed 1.25 tons.

The boxes must be fastened in accordance with the requirements of GOST 21650 with steel tape according to GOST 3560 or wire according to GOST 3282.

3.10 Transport marking - according to GOST 14192.

Additional packaging and labeling requirements may be established when ordering by agreement between the manufacturer and the consumer.

4 Safety requirements

Safety requirements for working with indium for the manufacturer and consumer - according to technological documentation in accordance with GOST 12.3.002 and GOST 3.1120.

5 Acceptance Rules

5.1 Indium is presented for acceptance in batches. The mass of the batch is not limited. The batch must consist of metal of one grade and be issued with one quality document containing:

- trademark or name of the manufacturer and its trademark;

- product name;

- India brand;

- batch number;

- number of seats in the party;

- chemical analysis data;

- net weight of the lot;

- date of manufacture;

- designation of this standard.

5.2 Each ingot, pyramid or rod is subjected to surface quality testing.

5.3 To control the mass and chemical composition of indium, 30% of ingots, pyramids or rods are selected from each batch.

In India, the In00 brand guarantees the mass fraction of aluminum, magnesium, silver, arsenic, thallium, tin and mercury by the manufacturer within the standardized indicators and determines it periodically at the request of the consumer.

In India, the In000 grade mass fraction of aluminum, bismuth, gallium, iron, cadmium, magnesium, manganese, selenium, sulfur, silver, tellurium, arsenic, mercury, tin, zinc, copper, lead and nickel is determined periodically once per quarter.

In India, grades In0000, the mass fraction of aluminum, bismuth, gallium, iron, cadmium, magnesium, manganese, selenium, sulfur, silver, tellurium, arsenic, mercury, zinc, and thallium is determined periodically once a quarter.

6 Control methods

6.1 The quality control of the surface of each ingot, pyramid or rod is carried out visually, without the use of magnifying devices.

GOST 10297-94

6.2 The chemical composition of indium of all grades is determined according to GOST 12645.0 - GOST 12645.13.

It is permissible to use other regulatory documents on analysis methods if their accuracy indicators are not inferior to the indicators provided for by current standards.

In case of disagreement, the chemical composition is assessed in accordance with GOST 12645.0-12645.13.

6.3 From each ingot, pyramid or rod selected for inspection, spot samples are taken by removing small chips from the edges of the ingot or pyramid and the end faces of rods and cylindrical ingots with a knife made of titanium, tantalum or graphite. The mass of the spot sample from each ingot, pyramid or rod must be no less than 0.3% of the mass of the ingot, pyramid or rod.

The place where the shavings are collected is thoroughly cleaned by scraping off the top layer with a knife blade.

The shavings collected from all the ingots and pyramids are cut into pieces no larger than 7 mm, combined and mixed. The resulting combined sample is reduced by quartering until a laboratory sample weighing at least 50 g is obtained.

The mass of a laboratory sample of indium grade In0000 when determining impurities of copper, nickel, lead, and tin must be at least 15 g.

6.4 At the manufacturing plant, a sample of indium for chemical analysis may be taken from the liquid metal during pouring of the melt into ingots, pyramids and rods. The sample is taken with a spoon made of fluoroplastic, titanium, graphite and quartz at the beginning, middle and end of pouring. The sample is taken and prepared using a method that ensures the representativeness of the sample received for analysis.

For grade In0000, the sample is taken simultaneously with the vacuum pouring of the metal of the entire batch into a sampler provided in the design of the dosing device. During pouring, the liquid metal fills the sampler and the test ingot crystallizes.

The surface of the test ingots is cleaned as specified in 6.3, after which the ingots are crushed. The resulting combined sample is thoroughly mixed and reduced by quartering until a laboratory sample weighing at least 50 g is obtained.

6.5 The obtained laboratory sample of indium is divided into two parts, one of which is crushed with a knife into pieces no larger than 2 mm in size and sent for analysis, indicating the name of the product, melt number and date of sample collection.

Another part of the laboratory sample of grades In0000, In000, In00, In0 is placed in a polyethylene bag and a label is attached, and samples of indium grade In2 are placed in a bag made of waxed paper according to GOST 9569 or made of polyethylene film according to GOST 10354.

The sample is stored for three months for analysis if there is any disagreement regarding the chemical composition.

7 Transportation and storage

7.1 Indium is transported by all types of transport in covered vehicles in accordance with the rules for the carriage of goods in force for the given type of transport, and by postal parcels. Indium is transported by rail in small shipments (one cargo space to one consignee) or in packaged form.

7.2 Indium is stored in closed rooms in the manufacturer's packaging under conditions that prevent aggressive substances and dust from getting on the metal.

8 Manufacturer's Warranties

8.1 The manufacturer guarantees that the quality of indium meets the requirements of this standard, subject to the transportation and storage conditions established by the standard.

8.2 The guaranteed shelf life of indium in the manufacturer's packaging is 5 years.

After the warranty period, the product must be tested for compliance with the requirements of this standard before use.

GOST 10297-94

APPENDIX A

(informative)

OKP codes

Table A1 - OKP Codes

Name	Identification features				OKP code	KCH
	Brand	Weight, kg	Length, mm	Diameter, mm
High purity indium metal ingots High purity indium metal: in bars in the form of pyramids Indium metal high purity: in bars in the form of pyramids in rods in cylindrical ingots High purity indium metal: in bars in the form of pyramids Indium metal technical: in bars in the form of pyramids	In0000 In0000 In0000 In0000 In000 In000 In000 In000 In000 In00 In00 In00 In00 In00 In00 In0 In0 In0 In2 In2 In2	Not more than 0.02 Not more than 0.05 No more than 1 Not more than 0.05 No more than 1 No more than 2.5 No more than 1 No more than 3 No more than 3 No more than 3 No more than 3 No more than 3 No more than 3	50-70 63-67 50-70	21-25 23-24 21-25	17 6841 0400 17 6841 0411 17 6841 0412 17 6841 0413 17 6841 0100 17 6841 0113 17 6841 0111 17 6841 0112 17 6841 0131 17 6841 0200 17 6841 0213 17 6841 0233 17 6841 0251 17 6841 0261 17 6841 0262 17 6841 0300 17 6841 0313 17 6841 0333 17 6842 0100 17 6842 0113 17 6842 0133	02 10 09 08 00 06 08 07 04 08 03 10 08 06 05 05 00 07 06 01 08

GOST 10297-94

ISS 77.120.99 B51 OKP 176842

Key words: indium, technical requirements, safety requirements, acceptance rules, control methods, transportation and storage