(F/DCE j 00 1-20 1 1)
1 Subject content and scope of application
1. 1 This standard specifies the quality requirements, inspection methods, inspection rules and transportation requirements of coke delivered by Dalian Commodity Exchange.
1.2? The coke specified in this standard refers to metallurgical coke used for blast furnace ironmaking, which is obtained by high-temperature dry distillation with coking coal as the main raw material.
1.3? This standard is applicable to the delivery standards and substitutes of coke futures contracts in Dalian Commodity Exchange.
2? Normative citation document
The clauses in the following documents become the clauses of this standard by reference. All subsequent modifications (excluding errata) or revisions of dated reference documents are not applicable to this standard. For undated reference documents, the latest edition is applicable to this standard.
GB/T 1996？ Metallurgical coke
GB/T 1997？ Sampling and preparation of coke samples
GB/T 200 1？ Method for analysis and determination of coke industry
GB/T 2005？ Determination of coke powder content and particle size composition of metallurgical coke
GB/T 2006？ Determination method of mechanical strength of metallurgical coke
GB/T 2286？ Determination of total sulfur in coke
GB/T 4000？ Test method for reactivity and post-reaction strength of coke
GB/T 8 170？ Digital correction rule
GB/T 9977？ Terminology of coking products
3? Terms and definitions
Terms and definitions in GB/T 9977 are applicable to this standard.
4? quality requirements
4. 1? Quality requirements of standard products
4.3? The moisture Mt requirement is ≤ 5.0%. If the moisture content is greater than 5.0%, the excess part shall be rounded to one decimal place for deduction (for example, the measured moisture content is 6.32%, and the deduction weight is 1.3%).
4.4? When leaving the warehouse, if the coke powder content or particle size does not meet the standard product quality standards, the part with excessive coke powder content or insufficient particle size shall be rounded to one decimal place, and the compensation amount shall be calculated according to the contract settlement price of coke in the latest month on the trading day before delivery (for example, the standard for coke powder content leaving the warehouse is no more than 7%, the measured value is 8.23%, rounded to one decimal place, and the compensation amount is 65,438+0.2% of the corresponding payment).
5? Test methods and inspection rules
5. 1? Sampling and preparation of samples shall be carried out in accordance with GB/T 1997.
5.2? The determination of coke powder content and particle size should be carried out in accordance with GB/T 2005.
5.3? The determination of moisture, ash and volatile matter shall be carried out in accordance with GB/T 200 1.
5.4? The determination of total sulfur content should be carried out in accordance with GB/T 2286.
5.5? Crushing strength M40 and abrasion strength M 10 shall be determined according to GB/T 1996.
5.6? The activity and strength after the reaction should be determined according to GB/T 4000.
5.7? Numerical modification shall be carried out in accordance with GB/T 8 170.
6? Transport requirements
Coke should be transported in clean train cars, car cars, cabins or other means of transport.