GOST 2169-69
GOST 2169−69 Silicon technical. Specifications (with Amendments No. 1, 2, 3)
GOST 2169−69
Group W51
INTERSTATE STANDARD
SILICON TECHNICAL
Specifications
Technical silicon. Specifications
GST 17 1131
Date of introduction 1970−07−01
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 Committee of standards, measures and measuring devices under Council of Ministers of the USSR from
3. The frequency of inspection — 5 years
4. REPLACE GOST 2169−43
5. Standard uniform with OBD 9617−72
6. REFERENCE NORMATIVE AND TECHNICAL DOCUMENTS
| The designation of the reference document referenced |
Item number |
| GOST 427−75 |
3.8 |
| GOST 2991−85 |
4.1 |
| GOST 5336−80 |
3.8 |
| GOST 6247−79 |
4.1 |
| GOST 6613−86 |
3.4, 3.8 |
| GOST 8777−80 |
4.1 |
| GOST 13950−91 |
4.1 |
| GOST 14192−96 |
4.2 |
| 19014.0 GOST-73 |
3.4, 3.6 |
| GOST 19014.0−73 — 19014.4 GOST-73 |
3.6 |
| GOST 26663−85 |
4.7 |
| THAT 10.10.739−88 |
4.1 |
| ST SEV 543−77 |
1.2 |
7. Limitation of actions taken by Protocol No. 7−95 Interstate Council for standardization, Metrology and certification (I & C N 11−95)
8. REISSUE with Amendments No. 1, 2, 3, approved in January 1980, July 1986 to December 1990 (IUS 2−80, 10−86, 4−91)
This standard applies to the silicon obtained by reduction smelting of the quartzite in electric-arc furnaces, intended for the manufacture of silicon alloys, silicone products, silicon semiconductor, and also for sparcely.
1. TECHNICAL REQUIREMENTS
1.1. Technical silicon is manufactured in accordance with the requirements of this standard technological instruction, duly approved.
1.2. Brand and chemical composition of silicon shall be as specified in the table.
| Mass fraction, % | ||||||
| Grade silicon | OKP code | Silicon, not less | Impurity, not more than | |||
| Iron |
Aluminium |
Calcium |
The amount determined impurities | |||
| Kr00 |
17 1131 0001 |
99,0 |
0,4 |
0,3 |
0,4 |
1,0 |
| Kr0 |
17 1131 0002 |
98,8 |
0,5 |
0,4 |
0,4 |
1,2 |
| KR1 |
17 1131 0003 |
98,0 |
0,7 |
0,7 |
0,6 |
2,0 |
| Kr2 |
17 1131 0004 |
97,0 |
1,0 |
1,2 |
0,8 |
3,0 |
| Kr3 |
17 1131 0005 |
96,0 |
1,5 |
1,5 |
1,5 |
4,0 |
Notes:
1. Mass fraction of silicon is set as the difference between 100% and sum of impurities determined in percent.
2. Rounding the results of the analysis of silicon in tenths to define its brand is carried out in accordance with ST SEV 543.
3. In silicon, designed for the production of aluminum-silicon alloys, is allowed the mass fraction of aluminium up to 2.0% with a corresponding decrease in the mass fraction of silicon. In this case, the designation of the brand of silicon is added to the letter A. for Example: Kr1a.
4. In silicon, designed for the chemical industry, the mass fraction of titanium is not more than 0.2% with a corresponding decrease in the mass fraction of silicon.
5. By agreement with the consumer for the production of semiconductor silicon as well as for sparcely produce brand silicon Kr0 with a mass fraction of aluminum of not more than 0.3%, KR1 brand — with a mass fraction of aluminum of not more than 0.6%.
1.3. Silicon is manufactured in the form of lumps with a size from 20 to 300 mm with a permissible fraction less than 20mm not more than 10% of the batch weight.
By agreement between manufacturer and consumer manufactures silica the following fractional composition:
to 20 mm;
from 5 to 300 mm (fraction less than 5 mm — no more than 5% of the batch weight);
from 20 to 150 mm (fraction less than 20mm — not more than 20% of the batch weight);
from 2 to 70 mm (the fraction less than 2 mm — no more than 5% of the batch weight).
1.4. The surface of lumps of silicon should not contain inclusions of slag, sand and other foreign materials visible to naked eye. Darkening of the silicon surface when samartliani hot ingots, as well as the presence of tint rejection characteristics are not.
On the surface, pieces of silicon designed to produce aluminum-silicon alloys of different brands, allowed traces antiburning backfill segregated nodules, spray silicon film tint and some minor slag inclusions.
1.2 -1.4. (Changed edition, Rev. N 3).
2. ACCEPTANCE RULES
2.1. Silicon take parties. The party must consist of silicon of one or more heats of the same brand. The party issue a document about quality that contains:
trademark or the name and trademark of manufacturer;
the brand of silicon;
batch number;
the weight of the batch;
the results of determining the mass fraction of the components;
the date of formation of the party;
stamp of technical control;
the designation of this standard.
The mass of the party must be not more than 75 t
2.2. To determine the mass fraction of components in silicon and its fractional composition selected spot samples from which to form the combined alloy in an amount of not less than 0.1% of the party. Each party determine the mass percent of iron, aluminum and calcium. Mass fraction of titanium in silicon, designed for the chemical industry, determined by the requirement of the user.
2.3. The surface quality control is carried out visually no less than four pieces, randomly selected from the party.
2.1−2.3. (Changed edition, Rev. N 3).
3. TEST METHODS
3.1. From the party of unpackaged silicon spot samples are taken at equal intervals of time in the process of loading, unloading or other movement of the silicon.
3.2. From the party Packed silicon spot samples are taken from each of the second cargo space. The number of sampling points shall not be less than five.
3.3. The combined sample is divided into two equal parts: one to determine the mass fraction of components in silicon and the other to determine its fractional composition.
3.4. The part of the United sample used to define a mass fraction of components in silicon, crushed to a grain size passing through a sieve with mesh N 2, 5 GOST 6613, and reduce kvantovanie to laboratory samples weighing not less than 150 g.
Laboratory test ofmagnesium and divide into two equal parts. One part is used to determine the mass fraction of components in silicon, and the other stored for 30 days from the moment of sampling in case of disagreement in quality assessment.
Further preparation of the laboratory sample is carried out according to GOST 19014.0.
3.5. Sampling may be performed by other methods that ensure a representative sample. If there is disagreement in assessing the quality of silicon samples is carried out in accordance with the PP.3.1 and 3.2 of this standard.
3.6. Mass fraction of components in silicon is determined according to GOST 19014.0 — GOST 19014.4. Allowed to analyze other methods to ensure the required accuracy of the definitions. The differences in the evaluation of the results of the analysis carried out according to GOST 19014.0 — GOST 19014.4.
3.7. The quality of the silicon surface was evaluated visually.
3.8. The maximum size of the pieces check metal ruler according to GOST 427.
The mass proportion of fine fractions is determined by sieving on a mesh of N 2 according to GOST 6613 N or 5 and 20 to GOST 5336.
Sec. 3. (Changed edition, Rev. N 3).
4. PACKING, MARKING, TRANSPORTATION AND STORAGE
4.1. Technical silicon transporterowych unpackaged or by agreement with the consumer, Packed in tight wooden boxes of the type II-III according to GOST 2991, a metal drum according to normative-technical documentation or barrels according to GOST 6247, GOST 13950, GOST and TU 8777 10.10.739−88.
Silicon, designed for long-term storage, are Packed in wooden boxes type III-2 according to GOST 2991 with constant weight of 500 kg metal drums or type I and II with corrugations rigidity to the shell according to normative-technical documentation.
4.2. Transport marking of silicon shipped in packaging — according to GOST 14192.
4.3. Labeling describing products, is applied to the label containing:
trademark or the name and trademark of manufacturer;
batch number;
the brand of silicon;
mass fraction of components in silicon;
the net weight of the packaging;
stamp of technical control;
the date of formation of the party.
The label diagonally applied strips of the following colors:
yellow for brand silicon Kr00;
red for brand silicon Kr0;
green — silicium KR1 brand;
blue — brand silicon Kr2;
black — brand silicon Kr3.
4.4. The label invest in a protective device made according to normative-technical documentation and ensure the safety of the label during transportation and storage, and attach to the lid of the drum or the end wall of the box. In a specialized container, the label put into the pocket in an open railway freight wagon for transportation of bulk silicon label attached inside the car, near the stairs on each side of the car.
4.3, 4.4. (Changed edition, Rev. N 3).
4.5. For silicon, designed for long-term storage, at customer’s request, the markings specified in clause 4.3 (except the chemical composition), is applied to the container stenciled with indelible paint indicating the gross weight of each packing place.
4.6. During transportation of the silicon transport document as applied to the bill of lading.
4.7. Silicon transporterowych rail and road transport in accordance with cargo carriage regulations applicable to transport of this species.
Transport in bulk silicon is carried out in specialized containers shipper or consignee, excluding ingress of moisture, open vehicles. By agreement between manufacturer and consumer and transport operators in silicon are transported in bulk in open wagons with the incorporation of structural gaps in order to avoid spillage of the cargo and in accordance with applicable requirements.
Silicon, Packed in accordance with the requirements of section 4.1, transporterowych covered vehicles.
When the mass shipment of silicon in the same type of container-Packed cargo space are formed into transport packets according to GOST 26663.
Simultaneous transportation in a single vehicle multiple batches of different brands of silicon with a mandatory separation of one party from another.
4.8. Packed crystal silicon is stored in covered premises.
Crystalline silicon is transported in bulk, including specialized containers, stored under a shed or indoors.
Storage is allowed at user silicon, Packed in metal containers, excluding ingress of moisture, outdoor areas with hard soil and slope to provide drainage.
4.7, 4.8 (Revised edition, Edit. N 3).
