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AS 1038.5-1998 Coal and coke - Analysis and testing Gross calorific value 被代替 发布日期 :  1998-06-05 实施日期 : 

定价: 605元 / 折扣价: 515 加购物车

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This test method is used to compute the calorific value and estimated ash content of the waste material represented by the sample for incineration purposes or as fuel for cement kilns.The gross calorific and ash value may be used for evaluating the effectiveness of any beneficiation process.1.1 This test method covers the determination of the gross calorific value of waste materials by either an isoperibol, aneroid, air-jacketed isoperibol, or adiabatic bomb calorimeter using electronic temperature sensors, automatic calorimeter controllers, and subsequent analysis of the residue for ash. After calorific analysis, the bomb washings may be collected for subsequent elemental analysis.1.2 The values stated in SI units are regarded as the standard.This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Specific hazard statements are given in Section 8.

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1.1 This test method covers the determination of the gross calorific value of coal and coke by the isoperibol bomb calorimeter. 1.2 The values stated in SI units are to be regarded as the standard unless otherwise designated. The values given in parentheses are for information only. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements, see Section 8.

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4.1 This test method provides an accurate and reliable method to measure the total calorific value of a fuel gas, on a continuous basis, which is used for regulatory compliance, custody transfer, and process control.1.1 This test method covers the determination with the continuous recording calorimeter (Note 1) of the total calorific (heating) value of fuel gas produced or sold in the natural gas range from 900 to 1200 Btu/standard ft3.NOTE 1: An extensive investigation of the accuracy of the Cutler-Hammer recording gas calorimeter, when used with gases of high heating value, was made by the National Bureau of Standards in 1957 under a research project sponsored by the American Gas Association.1.2 The subjects covered in this test method appear in the following sections:  SectionsAir-Gas Ratio Test 11Apparatus  5Basis of Measurement 14Cold Balance Test 10Compensation of Complicating Factors 13Condition of Gas Sample  7Definitions  2Installation of Apparatus  6Maintenance Appendix X1Operating Precautions Appendix X2Operation and Checking of Apparatus  9Precision 15  1  4Standardization of Calorimeter 12Standardization, Preliminary, of Calorimeter by Hydrogen  8Summary of Test Method  31.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

定价: 590元 / 折扣价: 502 加购物车

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5.1 The gross calorific value can be used to compute the total calorific content of the quantity of coal or coke represented by the sample for payment purposes.5.2 The gross calorific value can be used for computing the calorific value versus sulfur content to determine whether the coal meets regulatory requirements for industrial fuels.5.3 The gross calorific value can be used to evaluate the effectiveness of beneficiation processes.5.4 The gross calorific value can be required to classify coals according to Classification D388.1.1 This test method pertains to the determination of the gross calorific value of coal and coke by either an isoperibol or adiabatic combustion calorimeter.1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Specific hazard statements are given in Section 8.1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

定价: 646元 / 折扣价: 550 加购物车

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1.1 This test method covers the determination of the gross calorific value of coal and coke by an isoperibol bomb calorimeter using electronic temperature sensors and automatic calorimeter controllers. 1.2 The values stated in SI units are to be regarded as the standard, except as noted otherwise. The values given in parentheses are for information only. Note 1-Conversion to other units is discussed in Appendix X1. Time is expressed in minutes. Mass is expressed in grams. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements, see Section 8.

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1.1 This test method covers the determination of the gross calorific value of coal and coke by the adiabatic bomb calorimeter. 1.2 The values stated in SI units and British thermal units are to be regarded as the standard. The values given in parentheses are for information only. 1.3 This standard does not purport to address the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements see Section 8. 1.4 All accountability and quality control aspects of Guide D 4621 apply to this standard.

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