Group B13

STATE STANDARD OF THE UNION OF THE SSR

FUEL DIESEL

Specifications

diesel fuel. Specifications

OKP02 5131 0000

Introduction date 1983-01-01

INFORMATION DATA

1. DESIGNED AND INTRODUCED by the Ministry oil refining and petrochemical industry of the USSR

DEVELOPERS

T.Kh.Melik-Akhnazarov, E.M.Seregin, B.A.Englin, B.C.Azev, O.P.Nametkin, T.N.Mitusova, A.A.Kukushkin, S.A.Bnatov, F.V. .Turovsky

2. APPROVED AND INTRODUCED BY Decree of the USSR State Committee for Standards of March 31, 1982 No. 1386

3. INSTEAD OF GOST 305-73 and GOST 4749-73

4. REFERENCE REGULATIONS AND TECHNICAL DOCUMENTS

5. The validity period was removed under the Protocol of the Interstate Council for Standardization, Metrology and Certification (IUS 4-94)

6. RE-ISSUED (September 1997) with Amendments 1, 2, 3, 4, 5 approved in April 1983, June 1987, June 1989, December 1989 and July 1990 (IUS 7 -83, 11-87, 11-89, 4-90, 11-90)

This standard applies to fuel for high-speed diesel and gas turbine engines of land and marine equipment, obtained from oil refining products.

It is allowed to manufacture fuel with additives approved for use in the prescribed manner.

(Revised edition, Rev. No. 3).

1.1. Depending on the conditions of use, three grades of diesel fuel are installed:

3 (winter) - recommended for operation at an ambient temperature of minus 20 °С and above (fuel pour point not higher than minus 35 °С) and minus 30 °С and higher (fuel pour point not higher than minus 45 °С);

(Changed edition, Rev. No. 4, 5).

I - mass fraction of sulfur is not more than 0.2%;

II - mass fraction of sulfur is not more than 0.5% (for grade A, not more than 0.4%).

1.3. OKP codes for diesel fuel are given in Table. 1.

Table 1

1.4. IN symbol grade L fuels should include the mass fraction of sulfur and flash point, grade 3 fuels - mass fraction of sulfur and pour point, grade A fuels - mass fraction of sulfur.

Symbol examples

Summer fuel with a mass fraction of sulfur up to 0.2% and a flash point of 40 °C:

Diesel fuel L-0.2-40 GOST 305-82

Winter fuel with a mass fraction of sulfur up to 0.2% and a pour point of minus 35 ° C:

Diesel fuel 3-0.2-35 GOST 305-82

Arctic fuel with mass fraction of sulfur 0.4%:

Diesel fuel A-0.4 GOST 305-82

Sec. 1. (Changed edition, Rev. No. 4).

2. TECHNICAL REQUIREMENTS

2.1. Diesel fuel must be manufactured in accordance with the requirements of this standard according to the technology approved in the prescribed manner.

2.2. According to physical and chemical indicators, the fuel must comply with the requirements and standards specified in Table. 2.

table 2

Notes:

1. By agreement with the consumer, it is allowed to produce and supply fuel of grades A and Z (with a pour point of minus 45 ° C) with a cetane number of at least 40.

2. Fuel grade Z with a cetane number of at least 45, at the request of consumers, is allowed to be produced with a pour point not higher than minus 40 ° C.

3. By agreement with the consumer, for diesel fuel of brand Z, obtained from summer fuel using carbamide dewaxing, a cloud point is allowed not higher than minus 11 °С at a pour point not higher than minus 35 °С. The remaining indicators must comply with the requirements for grade L fuel.

4. By agreement with the consumer, it is allowed to produce grade Z fuel (from summer fuel) with a pour point of minus 35 ° C using a pour point depressant, while the rest of the indicators must comply with the requirements for grade L fuel. Fuel with an additive is allowed for use at ambient temperature not lower than minus 15 °С.

5. For diesel fuels of grades Z and A, produced from Baku oils, an ash content of not more than 0.02% is allowed (except for fuels intended for gas turbines) and the concentration of actual resins is not more than 60 mg per 100 cm3 of fuel.

6. In diesel fuel of all grades, after five years of storage, an increase in acidity by 1 mg of KOH and the concentration of actual resins by 10 mg per 100 cm of fuel is allowed.

7. Diesel fuel of grades L, Z, A of the highest grade must be produced with the standards for the indicators indicated below:

mass fraction of sulfur, %, not more than - 0.2;

actual resin concentration, mg per 100 cm3 of fuel, not more than - 25;

iodine number, g of iodine per 100 g of fuel, not more than - 5;

ash content, %, not more than - 0.008;

coking capacity of 10% residue, %, not more than: for grade L 0.20, for grades Z and A 0.10;

filterability coefficient, no more than - 2.

8. By agreement with the consumer, it is allowed to produce and use fuel grade L with a pour point of not higher than 0 ° C (without determining the cloud point) and a water content of not more than “traces” (for premium fuel - no) at a minimum air temperature (on site use of fuel) not lower than 5 °C.

9. For diesel fuels from Sakhalin, Troitsko-Anastasyevskaya, as well as from a mixture of Troitsko-Anastasyevskaya and Kazakhstani oils, the density standard for grade L is not more than 875 kg/m3, for grades Z and A - not more than 860 kg/m3.

10. Notes 1-6 do not apply to diesel fuel of all premium grades, as well as those supplied for export.

When supplying fuel for export, along with the indicators indicated in Table. 2, determine and indicate in the accompanying documentation the color in accordance with GOST 2667 and limit temperature filterability according to GOST 22254.

11. For equipment operated in underground mining and in quarries, fuel with a sulfur content of not more than 0.2% is used.

(Changed edition, Rev. No. 1, 2, 3, 4, 5)

3. SAFETY REQUIREMENTS

3.1. Diesel fuel is a flammable liquid. The explosive concentration of its vapors and mixtures with air is 2-3% (by volume). Self-ignition temperature of fuel grade L - 300 °C, grade Z - 310 °C, grade A - 330 °C; ignition temperature limits for grades:

L - lower 69 °С, upper 119 °С;

Z » 62 °С, » 105 °С;

A » 57 °С, » 100 °С.

Flash point for brands: L - above 40 ° C, W - above 30 ° C, A - above 30 ° C - fuels for general purpose diesel engines and, accordingly: L - above 61 ° C, W - above 40 ° C, A - above 35 °С - fuels for locomotive and marine diesel engines and gas turbines.

The maximum permissible concentration of fuel vapors in the air of the working area is 300 mg/m3.

Diesel fuel belongs to low-toxic substances of the 4th hazard class.

Fuel irritates the mucous membrane and human skin.

3.2. The equipment, draining and loading devices, in order to prevent the ingress of fuel vapors into the air of the working room, must be sealed.

3.3. It is forbidden to use open fire in the premises for storage and operation of diesel fuel; artificial lighting must be explosion-proof.

3.4. When working with fuel, it is not allowed to use tools that give a spark when struck. In case of fuel fire, the following fire extinguishing agents are applicable: sprayed water, foam, in case of volumetric extinguishing - carbon dioxide, the composition of the SZhB, the composition of 3.5 and superheated steam.

3.5. When spilling fuel, it is necessary to collect it in a separate container, wipe the spill area with a dry cloth, and when spilled on open area fill the spill area with sand and then remove it.

3.6. When sampling, analyzing and handling in the process of transport and production operations with fuel, apply individual means protection in accordance with standard norms approved State Committee USSR on labor and social issues and the Presidium of the All-Union Central Council of Trade Unions.

3.7. Tanks in which fuel is stored and transported, as well as pipelines, must be protected from static electricity.

4. ACCEPTANCE RULES

4.1. Diesel fuel is accepted in batches. A batch is considered to be any quantity of fuel that is homogeneous in terms of quality and accompanied by one quality document.

4.2. Sample size - according to GOST 2517.

4.3. Upon receipt of unsatisfactory test results for at least one of the indicators, it is repeated tests of a newly selected sample from a double sample.

The retest results apply to the entire lot.

4.4. The indicator according to paragraph 21 of the table. 2 is determined for fuel intended for export.

All documents presented in the catalog are not their official publication and are for informational purposes only. Electronic copies of these documents can be distributed without any restrictions. You can post information from this site on any other site.

GOST 1137-64

Coals brown, stone, anthracite, combustible shales and briquettes. Quality Acceptance Rules

GOST 1137-64

Group A19

STATE STANDARD OF THE UNION OF THE SSR

COAL BROWN, STONE, ANTHRACITE, SHALE AND BRIQUETTES

Quality Acceptance Rules

Brown coals, hard coals, anthracite, combustible shale and briquettes.
quality acceptance rules

Introduction date 1965-01-01

INFORMATION DATA

1. DEVELOPED AND INTRODUCED by the USSR State Committee for Standards, Measures and Measuring Instruments

DEVELOPERS

A.A. Chernov, I.N. Nikolaev

2. APPROVED AND INTRODUCED by the State Committee for Standards, Measures and Measuring Instruments of the USSR on October 13, 1964

3. REPLACE GOST 1137-59

4. REFERENCE REGULATIONS AND TECHNICAL DOCUMENTS

5. The limitation of the validity period was removed according to the Protocol of the Interstate Council for Standardization, Metrology and Certification (IUS 5-6-93)

6. REPUBLICATION (October 1997) with Amendments No. 1, 2, approved in January 1979 and December 1989 (IUS 3-79, 4-90)

1. Fuel is accepted from the supplier at the loading points.

2. All products of each enterprise are subject to quality acceptance.

3. Acceptance of fuel by quality is carried out by an acceptance apparatus or an inspectorate acting on the basis of their provisions.

At the supplier's enterprises, where there is no special acceptance apparatus or inspection, fuel is sent to consumers only after it has been accepted by the technical control department of the supplier enterprise.

4. Acceptance of fuel is carried out on the basis of standards, specifications or temporary norms according to the orders of sales organizations issued in accordance with the consumer's order.

5. Acceptance of fuel is carried out according to the preliminary control of the quality control department by external inspection, sampling and testing.

6. Fuel intended for shipment to consumers is subjected to preliminary quality control.

7. Preliminary control is carried out by each supplier's enterprise (mine, cut, coal preparation and briquette factories) before the fuel is presented for acceptance.

8. The receiving apparatus and the coal quality inspection check the correctness of the production by the supplier's enterprises of the preliminary fuel quality control.

9. The data of the results of the preliminary fuel quality control shall be presented by the supplier's enterprise to the receiving apparatus or to the coal quality inspection before or simultaneously with the presentation of the fuel for acceptance.

10. The fuel presented for acceptance is subjected to an external inspection, which establishes: no leakage or dripping, compliance with the class in terms of the size of the pieces, the content of fines and mineral impurities (rocks) with a size of pieces of 25 mm or more.

Fuel leaking or dripping from wagons is not allowed for shipment.

11. External inspection and fuel sampling are carried out:

a) in railway wagons - in the process of loading and at the end of it;

b) in storage warehouses - when the fuel is prepared for delivery;

c) on conveyors and in mine cars - when the fuel is delivered by the enterprise to the consumer directly;

d) in trucks and other vehicles.

12. Loading fuel into vehicles contaminated with the remains of previously transported goods, both from the inside and from the outside, is prohibited.

13. Fuel is considered accepted for shipment, from which a commercial sample, issued with a certificate, was taken.

Note. Prior to the start of loading, the supplier is obliged to mark the wagons for individual consumers.

14. Commodity samples, depending on their purpose, are divided into:

settlement - for payments for fuel by quality;

control - to determine the possibility of sending the presented fuel, causing doubt in terms of quality;

prefabricated - to obtain an average monthly quality characteristic for individual classes and brands of fuel shipped by the enterprise.

15. Shipped fuel must comply with the brand, class and other indicators established by state standards, specifications and temporary regulations.

Fuel for which quality indicators are not established by standards, specifications or temporary norms is not allowed for shipment.

16. Mixing of individual grades and classes of fuel provided for by standards, technical conditions or temporary norms during production, storage and loading is not allowed.

Note. When weighing wagons, reloading them with fuel that does not correspond to the brand and class loaded into the wagon is prohibited.

17. If the fuel presented for acceptance, based on the results of preliminary control or external examination, does not raise doubts about its compliance with the established standards of quality indicators, then a calculated sample is taken.

18. Control samples for mechanical testing are taken from fuel that is questionable in accordance with this class in terms of the size of the pieces, as well as the established limit standards for the content of fines and mineral impurities (rocks).

Regardless of the selection of control samples for mechanical testing, the fuel of each enterprise must be tested for the content of fines at least once every three months and at least once a month for the content of mineral impurities (rock).

19. Control samples for chemical testing are taken from fuel that raises doubts about its compliance with the established limit standards for ash content, moisture content, sulfur or calorific value.

Note. Selection of control samples for moisture content, sulfur and calorific value is carried out only if these indicators are rejected.

20. If other indicators are provided for any consumer, in case of non-compliance with which fuel cannot be sent, then control samples are taken to determine these indicators.

21. Control samples are taken from a batch of fuel shipped at a time. In some cases, control samples may also be taken from individual wagons.

Putting individual wagons under control should not serve as a basis for delaying the dispatch of the remaining wagons of the batch.

22. Until the results of mechanical and chemical tests of control samples are received, doubtful fuel is not allowed to be shipped.

23. When taking a control sample, the representative of the receiving apparatus or inspection notifies the management of the enterprise about this.

The management of the enterprise, having received a notification, immediately allocates its responsible representative to participate in the selection of a control sample and the preparation of an appropriate act (certificate). The act indicates the motives for which the fuel was taken for control, the numbers of the cars and the amount of fuel from which the control sample was taken. The act (certificate) is signed by the representatives who participated in the selection of the control sample.

If a representative of the enterprise does not appear to participate in the selection of a control sample, the latter is selected and prepared by the receiving apparatus or the coal quality inspection independently with a note about this in the act.

At the supplier's enterprises, where there is no special acceptance apparatus or inspection, control samples are taken by the QCD.

24. The receiving apparatus, the quality inspection and the QCD take control samples in the following cases:

a) when the fuel, on external inspection, raises doubts about its compliance with this class in terms of the size of the pieces, as well as the established limit standards for the content of fines and mineral impurities (rocks);

b) when the fuel was not subjected to preliminary quality control by the supplier's enterprise or the supplier's enterprise carried out preliminary quality control in violation of the established instructions, which should be noted in the notice to the enterprise on the selection of a control sample;

c) when the supplier's enterprise has carried out a preliminary quality control in accordance with the instructions, but some quality indicators slightly deviate from the rejection standards. The values ​​of permissible deviations should be provided for in the instructions for preliminary quality control.

25. Based on the results of analyzes and mechanical tests of control samples, the receiving apparatus, inspection or Quality Control Department determine the compliance of the fuel with the established quality indicators.

26. When taking control samples, design samples are not taken from wagons taken for control. If the analysis of control samples confirms the compliance of the fuel quality with the established standards, then these samples are simultaneously calculated.

27. Fuel, self-heating to a temperature of 50 °C, as well as subjected to spontaneous combustion, must be separated from the total mass, cooled to normal temperature, after which control samples must be taken from it for analysis.

According to the results of the analysis, the brand and quality characteristics are established.

Fuel that has undergone spontaneous combustion is not allowed for shipment for coking, for water transport and technological purposes.

When shipping fuel subjected to spontaneous combustion, the Supplier is obliged to indicate this in all shipping documents and certificates of quality.

28. Samples for laboratory tests are taken according to GOST 10742, and samples for determining the content of fines and mineral impurities (rocks) - according to GOST 1916.

29. The selection of commercial design samples is issued by certificates, in which the test results are entered. The rejection of fuel (including control samples), as well as sampling for mechanical tests, is documented in acts.

30. For laboratory tests, two copies of a laboratory sample are prepared from a commercial sample, one of which is immediately sent to the supplier's laboratory, and the second is stored as an arbitration sample.

31. At the request of the consumer, stipulated by the supply agreement, a third copy of the laboratory sample is prepared, which is sent simultaneously to the consumer. In the absence of such an indication in the contract, the third copy of the laboratory sample must be sent to the consumer upon his written request.

32. Arbitration samples must be stored in a special room for two months from the date of sampling.

The supplier and the acceptance apparatus or the inspectorate bear full responsibility for the safety of the arbitration sample.

33. Analyzes of calculated samples are carried out in the supplier's laboratory immediately after receiving the sample. Control samples are analyzed to avoid delaying railway cars out of turn.

The results of the analyzes of the calculated samples are reported to consumers within the period specified in clause 39, and the results of the analyzes of the control samples are recorded in the acts (certificates) and immediately sent one copy to the supplier's enterprise, and the other copy to the receiving apparatus or coal quality inspection.

34. In case of doubts about the correctness of the results of the analysis of the main copy of the commercial design sample, the consumer is given the right to demand the analysis of the arbitration sample in a laboratory selected by agreement between the supplier and the consumer.

35. The results of the arbitration analysis are final and binding on both parties. The supplier immediately upon receipt of the results of the arbitration analysis is obliged to inform all consumers who received fuel characterized by this sample.

36. The procedure and terms for the acceptance of products by quality from the consumer are determined by the instruction on the procedure for the acceptance of products for industrial purposes and consumer goods by quality, approved by the State Arbitration of the USSR.

(Introduced additionally, Rev. N 1, 2).

37. Calculated samples are subjected to analysis in laboratories for all indicators provided for by standards, specifications or temporary norms. Wherein:

a) moisture content () and ash content () are determined for each sample, and for shale, ash content () is determined from a monthly sample;

b) the content of total sulfur () is determined for fuel supplied for coking, for blast furnace, forging, foundry and other technological purposes for each sample, and in some cases - for a combined sample per month;

c) the yield of volatile substances () with a characteristic of a non-volatile residue is determined for each sample only for coal, and for brown coal, anthracite and briquette - for a collective sample per month;

d) the calorific value in the bomb for dry and combustible mass ( and ) is determined for each fuel sample, for which the calculation for quality is made according to this indicator. For the rest of the fuel, the calorific value in the bomb is determined for the combustible mass () according to the combined sample per month;

e) carbonic acid of carbonates (CO) is determined by a collective sample for a month

38. Certification of fuel is carried out by the supplier's laboratory or the laboratory that performed arbitration analyzes, based on the results of the analysis for each sample.

39. For each batch of fuel shipped to the consumer at a time, the supplier, within 24 hours from the end of sampling, is obliged to draw up and send to the consumer a certificate of fuel quality, which should indicate: car numbers, name of the mine (cut, factory), brand, class of coal , ash content, moisture content, sulfur and other indicators provided for by the standards, specifications or temporary regulations for individual consumers, as well as the number of the standard according to which the fuel was shipped.

The text of the document is verified by:
official publication
M.: IPK Standards Publishing House, 1998

GOST 1137-64

Group A19

STATE STANDARD OF THE UNION OF THE SSR

COAL BROWN, STONE, ANTHRACITE, SHALE AND BRIQUETTES

Quality Acceptance Rules

Brown coals, hard coals, anthracite, combustible shale and briquettes.
quality acceptance rules

Introduction date 1965-01-01

INFORMATION DATA

1. DEVELOPED AND INTRODUCED by the USSR State Committee for Standards, Measures and Measuring Instruments

DEVELOPERS

A.A. Chernov, I.N. Nikolaev

2. APPROVED AND INTRODUCED by the State Committee for Standards, Measures and Measuring Instruments of the USSR on October 13, 1964

3. REPLACE GOST 1137-59

4. REFERENCE REGULATIONS AND TECHNICAL DOCUMENTS

5. The limitation of the validity period was removed according to the Protocol of the Interstate Council for Standardization, Metrology and Certification (IUS 5-6-93)

6. REPUBLICATION (October 1997) with Amendments No. 1, 2, approved in January 1979 and December 1989 (IUS 3-79, 4-90)

1. Fuel is accepted from the supplier at the loading points.

2. All products of each enterprise are subject to quality acceptance.

3. Acceptance of fuel by quality is carried out by an acceptance apparatus or an inspectorate acting on the basis of their provisions.

At the supplier's enterprises, where there is no special acceptance apparatus or inspection, fuel is sent to consumers only after it has been accepted by the technical control department of the supplier enterprise.

4. Acceptance of fuel is carried out on the basis of standards, specifications or temporary norms according to the orders of sales organizations issued in accordance with the consumer's order.

5. Acceptance of fuel is carried out according to the preliminary control of the quality control department by external inspection, sampling and testing.

6. Fuel intended for shipment to consumers is subjected to preliminary quality control.

7. Preliminary control is carried out by each supplier's enterprise (mine, cut, coal preparation and briquette factories) before the fuel is presented for acceptance.

8. The receiving apparatus and the coal quality inspection check the correctness of the production by the supplier's enterprises of the preliminary fuel quality control.

9. The data of the results of the preliminary fuel quality control shall be presented by the supplier's enterprise to the receiving apparatus or to the coal quality inspection before or simultaneously with the presentation of the fuel for acceptance.

10. The fuel presented for acceptance is subjected to an external inspection, which establishes: no leakage or dripping, compliance with the class in terms of the size of the pieces, the content of fines and mineral impurities (rocks) with a size of pieces of 25 mm or more.

Fuel leaking or dripping from wagons is not allowed for shipment.

11. External inspection and fuel sampling are carried out:

A) in railway wagons - in the process of loading and at the end of it;

B) in storage warehouses - when the fuel is prepared for delivery;

C) on conveyors and in mine cars - when the fuel is delivered by the enterprise to the consumer directly;

D) in trucks and other vehicles.

12. Loading fuel into vehicles contaminated with the remains of previously transported goods, both from the inside and from the outside, is prohibited.

13. Fuel is considered accepted for shipment, from which a commercial sample, issued with a certificate, was taken.

Note. Prior to the start of loading, the supplier is obliged to mark the wagons for individual consumers.

14. Commodity samples, depending on their purpose, are divided into:

Settlement - for payments for fuel by quality;

Control - to determine the possibility of sending the presented fuel, causing doubt in terms of quality;

Prefabricated - to obtain an average monthly quality characteristic for individual classes and brands of fuel shipped by the enterprise.

15. Shipped fuel must comply with the brand, class and other indicators established by state standards, specifications and temporary regulations.

Fuel for which quality indicators are not established by standards, specifications or temporary norms is not allowed for shipment.

16. Mixing of individual grades and classes of fuel provided for by standards, technical conditions or temporary norms during production, storage and loading is not allowed.

Note. When weighing wagons, reloading them with fuel that does not correspond to the brand and class loaded into the wagon is prohibited.

17. If the fuel presented for acceptance, based on the results of preliminary control or external examination, does not raise doubts about its compliance with the established standards of quality indicators, then a calculated sample is taken.

18. Control samples for mechanical testing are taken from fuel that is questionable in accordance with this class in terms of the size of the pieces, as well as the established limit standards for the content of fines and mineral impurities (rocks).

Regardless of the selection of control samples for mechanical testing, the fuel of each enterprise must be tested for the content of fines at least once every three months and at least once a month for the content of mineral impurities (rock).

19. Control samples for chemical testing are taken from fuel that raises doubts about its compliance with the established limit standards for ash content, moisture content, sulfur or calorific value.

Note. Selection of control samples for moisture content, sulfur and calorific value is carried out only if these indicators are rejected.

20. If other indicators are provided for any consumer, in case of non-compliance with which fuel cannot be sent, then control samples are taken to determine these indicators.

21. Control samples are taken from a batch of fuel shipped at a time. In some cases, control samples may also be taken from individual wagons.

Putting individual wagons under control should not serve as a basis for delaying the dispatch of the remaining wagons of the batch.

22. Until the results of mechanical and chemical tests of control samples are received, doubtful fuel is not allowed to be shipped.

23. When taking a control sample, the representative of the receiving apparatus or inspection notifies the management of the enterprise about this.

The management of the enterprise, having received a notification, immediately allocates its responsible representative to participate in the selection of a control sample and the preparation of an appropriate act (certificate). The act indicates the motives for which the fuel was taken for control, the numbers of the cars and the amount of fuel from which the control sample was taken. The act (certificate) is signed by the representatives who participated in the selection of the control sample.

If a representative of the enterprise does not appear to participate in the selection of a control sample, the latter is selected and prepared by the receiving apparatus or the coal quality inspection independently with a note about this in the act.

At the supplier's enterprises, where there is no special acceptance apparatus or inspection, control samples are taken by the QCD.

24. The receiving apparatus, the quality inspection and the QCD take control samples in the following cases:

A) when the fuel, on external examination, raises doubts about its compliance with this class in terms of the size of the pieces, as well as the established limit standards for the content of fines and mineral impurities (rocks);

B) when the fuel was not subjected to preliminary quality control by the supplier's enterprise or the supplier's enterprise carried out preliminary quality control in violation of the established instructions, which should be noted in the notice to the enterprise about the control sample taking;

C) when the supplier's enterprise has carried out a preliminary quality control in accordance with the instructions, but some quality indicators slightly deviate from the rejection standards. The values ​​of permissible deviations should be provided for in the instructions for preliminary quality control.

25. Based on the results of analyzes and mechanical tests of control samples, the receiving apparatus, inspection or Quality Control Department determine the compliance of the fuel with the established quality indicators.

26. When taking control samples, design samples are not taken from wagons taken for control. If the analysis of control samples confirms the compliance of the fuel quality with the established standards, then these samples are simultaneously calculated.

27. Fuel, self-heating to a temperature of 50 °C, as well as subjected to spontaneous combustion, must be separated from the total mass, cooled to normal temperature, after which control samples must be taken from it for analysis.

According to the results of the analysis, the brand and quality characteristics are established.

Fuel that has undergone spontaneous combustion is not allowed for shipment for coking, for water transport and technological purposes.

When shipping fuel subjected to spontaneous combustion, the Supplier is obliged to indicate this in all shipping documents and certificates of quality.

28. Samples for laboratory tests are taken according to GOST 10742, and samples for determining the content of fines and mineral impurities (rocks) - according to GOST 1916.

29. The selection of commercial design samples is issued by certificates, in which the test results are entered. The rejection of fuel (including control samples), as well as sampling for mechanical tests, is documented in acts.

30. For laboratory tests, two copies of a laboratory sample are prepared from a commercial sample, one of which is immediately sent to the supplier's laboratory, and the second is stored as an arbitration sample.

31. At the request of the consumer, stipulated by the supply agreement, a third copy of the laboratory sample is prepared, which is sent simultaneously to the consumer. In the absence of such an indication in the contract, the third copy of the laboratory sample must be sent to the consumer upon his written request.

32. Arbitration samples must be stored in a special room for two months from the date of sampling.

The supplier and the acceptance apparatus or the inspectorate bear full responsibility for the safety of the arbitration sample.

33. Analyzes of calculated samples are carried out in the supplier's laboratory immediately after receiving the sample. Control samples are analyzed to avoid delaying railway cars out of turn.

The results of the analyzes of the calculated samples are reported to consumers within the period specified in clause 39, and the results of the analyzes of the control samples are recorded in the acts (certificates) and immediately sent one copy to the supplier's enterprise, and the other copy to the receiving apparatus or coal quality inspection.

34. In case of doubts about the correctness of the results of the analysis of the main copy of the commercial design sample, the consumer is given the right to demand the analysis of the arbitration sample in a laboratory selected by agreement between the supplier and the consumer.

35. The results of the arbitration analysis are final and binding on both parties. The supplier immediately upon receipt of the results of the arbitration analysis is obliged to inform all consumers who received fuel characterized by this sample.

36. The procedure and terms for acceptance of products by quality from the consumer are determined by the instruction on the procedure for acceptance of products for industrial purposes and consumer goods by quality, approved by the State Arbitration of the USSR.

(Introduced additionally, Rev. N 1, 2).

37. Calculated samples are subjected to analysis in laboratories for all indicators provided for by standards, specifications or temporary norms. Wherein:

C) the yield of volatile substances () with a characteristic of a non-volatile residue is determined for each sample only for coal, and for brown coal, anthracite and briquette - for a collective sample per month;

D) the calorific value in the bomb for dry and combustible mass ( and ) is determined for each fuel sample, for which the calculation for quality is made according to this indicator. For the rest of the fuel, the calorific value in the bomb is determined for the combustible mass () according to the combined sample per month;

E) carbonic acid of carbonates (CO) is determined by a collective sample for a month.

38. Certification of fuel is carried out by the supplier's laboratory or the laboratory that performed arbitration analyzes, based on the results of the analysis for each sample.

39. For each batch of fuel shipped to the consumer at a time, the supplier, within 24 hours from the end of sampling, is obliged to draw up and send to the consumer a certificate of fuel quality, which should indicate: car numbers, name of the mine (cut, factory), brand, class of coal , ash content, moisture content, sulfur and other indicators provided for by the standards, specifications or temporary regulations for individual consumers, as well as the number of the standard according to which the fuel was shipped.

The text of the document is verified by:
official publication
M.: IPK Standards Publishing House, 1998