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GB 252-2015: General diesel fuels Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Obsolete GB 252: Historical versions
GB 252-2015: General diesel fuels---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GB252-2015GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 75.160.20 E 31 Replacing GB 252-2011 General diesel fuels Issued on. MAY 08, 2015 Implemented on. MAY 08, 2015 Issued by. General Administration of Quality Supervision, Inspection and Quarantine; Standardization Administration of PRC. Table of ContentsForeword... 3 1 Scope... 5 2 Normative references... 5 3 Product categories... 7 4 Technical requirements and test methods... 8 5 Sampling... 9 6 Marking, packaging, transportation and storage... 9 7 Safety... 10 8 Implementation of standard... 10 Appendix A (Informative) Minimum temperature with a risk ratio of 10% in each region... 11 Appendix B (Normative) Inspection of nitrate ester type cetane number improver in diesel... 13ForewordClauses 4, 6 and 8 of this standard are mandatory and the rest are recommended. This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB 252-2011 “General diesel fuels”. As compared with GB 252-2011, the main changes of this standard are as follows. - ADD clause 4.1 additives used in general diesel fuel shall have no known harmful effects and shall be used in accordance with the recommended appropriate dosage. General diesel fuel shall not contain any additives or contaminants that can cause the engine to malfunction (see 4.1). - MODIFY the second paragraph of the Scope to. This standard applies to petroleum-based or additive-added additives general diesel fuel used in compression ignition engines such as tractors, diesel locomotives, construction machinery, inland vessels and generator sets (see clause 1). - DELETE clause 3 Terms and definitions (see clause 3 of the 2011 version); - DELETE the relevant content of No.10 general diesel fuel (see Table 1); - MODIFY the limit of sulfur content index in general diesel fuel (see Table 1); - ADD the technical requirements for general diesel lubricity and fatty acid methyl ester content (see Table 1); - MODIFY clause 5 into “Sampling”, with content is modified accordingly (see clause 5; clause 6 of the 2011 version); - MODIFY clause 7.1 to. “6.1 The equipment used for general diesel fuel sold to the user in accordance with Table 1 of this standard shall clearly indicate the grade and name of the product. Example. No.0 general diesel fuel (see 6.1; clause 7.1 of 2011 version); - ADD clause 8.Implementation of standard (see clause 8). This standard shall be under the jurisdiction of the National Petroleum Products and Lubricants Standardization Technical Committee (SAC/TC 280). The drafting organization of this standard. Petrochemical Research Institute of China Petroleum and Chemical Corporation. The main drafter of this standard. Ni Bei. This standard replaces the standard previously issued as follows. - GB252-1964, GB 252-1977, GB 252-1981, GB 252-1987, GB 252-1994, GB 252-2000, GB 252-2011. General diesel fuels Warning. If the appropriate precautions are not observed, the products covered by this standard may be dangerous during production, storage and use. This standard is not intended to advise on all safety issues related to this product. It is the responsibility of the user to establish appropriate safety and precautions before using this standard and to determine the applicability of the relevant regulatory restrictions.1 ScopeThis standard specifies the product classification, technical requirements and test methods, sampling and marking, packaging, transportation and storage, safety and standard implementation of general diesel fuels. This standard applies to petroleum-based or additive-added additives general diesel fuel used in compression ignition engines such as tractors, diesel locomotives, construction machinery, inland vessels and generator sets Note. Other special uses besides this may be negotiated between the supplier and the purchaser.2 Normative referencesThe following documents are essential to the application of this document. For the dated documents, only the versions with the dates indicated are applicable to this document; for the undated documents, only the latest version (including all the amendments) are applicable to this standard. GB 190 Packing symbol of dangerous goods GB/T 258 Determination of acidity of gasoline, kerosene and diesel fuels GB/T 260 Petroleum products - Determination of water GB/T 261 Determination of flash point - Pensky-Martens closed cup method GB/T 265 Petroleum products - Determination of kinematic viscosity and calculation of dynamic viscosity GB/T 268 Petroleum products - Determination of carbon residue - Conradson method GB/T 380 Determination of sulfur content in petroleum products (lamp method) GB/T 386 Standard test method for cetane number of diesel fuel oil GB/T 508 Petroleum products. Determination of ash GB/T 510 Petroleum products - Determination of solidification point GB/T 511 Petroleum products and additives - Method for determination of mechanical admixtures3 Product categoriesGeneral diesel fuel is divided into six grades in accordance with the freezing point.4 Technical requirements and test methods4.1 The additives used in general diesel oil shall have no known harmful effects and shall be used in accordance with the recommended appropriate dosage. 4.2 The technical requirements for general diesel fuel are shown in Table 1.5 SamplingSampling is carried out in accordance with GB/T 4756, taking 4 L for inspection and sample retention.6 Marking, packaging, transportation and storage6.1 The equipment used for general diesel fuel that meets the requirements of Table 1 sold to the user shall clearly indicate the grade and name of the product. Example. No.0 general diesel fuel.7 SafetyIn accordance with GB 13690, general diesel oil is a flammable liquid. For the danger description and precautionary statements, see Appendix D of GB 30000.7-2013.8 Implementation of standardThis standard shall be implemented as of the date of promulgation and shall be subject to the gradual introduction of the transition period requirements. For the requirement for sulfur content in Table 1 being not more than 50 mg/kg, the transition period is by June 30, 2017, the requirements that the sulfur content being not more than 350 mg/kg in Table 1 is discarded from July 1, 2017;Appendix A(Informative) Minimum temperature with a risk ratio of 10% in each region The minimum temperature with a risk ratio of 10% in each region (see Table A.1) was extracted and compiled from the Temperature Data for Petroleum Products Standards which was prepared by the Central Meteorological Administration's Reference Office. The minimum temperature with a monthly risk ratio of 10% indicates that the probability that the minimum temperature in the month is lower than this value is 0.1, or otherwise the probability that the minimum temperature in the month is higher than this value is 0.9.Appendix B(Normative) Inspection of nitrate ester type cetane number improver in diesel B.1 Scope B.1.1 This method is applicable to the testing of nitrate ester type cetane number improvers used in diesel fuel. The method can be used as a qualitative screening method for determining residual carbon and calculating the cetane index. B.1.2 This method involves certain hazardous substances, operations and equipment and is not intended to advise on all safety issues involved. Therefore, appropriate safety and protective measures shall be established prior to the use of this method and the applicability of the relevant regulatory restrictions shall be determined. B.2 Method summary The diesel specimen is saponified in a potassium hydroxide-n-butanol mixture, filtered by a glass fiber filter paper, the material remaining on the filter paper is dried and treated with a diphenylamine reagent. Diphenylamine is oxidized by nitrate to a deep blue quinoid compound. The resulting blue or blue-black spots indicate that there is a nitrate type cetane number improver. No color change indicates that there is no nitrate type cetane number improver. B.3 Instruments or equipment B.3.1 Reaction bottle. A 30 mL wide mouth jar with a thread cap, there is a tin or plastic lining inside the cap. B.5 Test procedure B.5.1 MIX 6.5 g of potassium hydroxide with 100 mL of n-butanol, HEAT to dissolve potassium hydroxide, after the solution is cooled, USE the glass fiber filter paper to filter the mixture, to obtain a saponified mixture. B.5.2 PIPETTE 10 mL of the specimen into the reaction flask, ADD 5 mL of toluene, ADD 10 mL of the saponified mixture. Warning. Pipettes shall not be inhaled by mouth because of the presence of toxic substances in the test. B.5.3 USE a thread cap to firmly cover the reaction bottle, MIX the contents, PLACE it in an oven at 110 °C for 4 h. B.5.4 REMOVE the reaction bottle from the oven, COOL it to 25 °C ± 3 °C. B.5.5 FILTER the contents of the reaction bottle in a glass sintered filter equipped with glass fiber filter paper. B.5.6 USE 2.5 mL of toluene to rinse the reaction bottle, TRANSFER it into the glass sintered filter for filtration. B.5.7 Carefully REMOVE the glass fiber filter paper, PLACE it into an oven at 110 °C to dry it for 15 min. B.5.8 REMOVE the glass fiber filter paper, COOL it to 25 °C ± 3 °C. B.5.9 ADD 3 drops of diphenylamine solution to the center of the filter paper, OBSERVE if blue or blue-black color is formed. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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