ASTM D1826 : 94(2003)

Standard Test Method for Calorific (Heating) Value of Gases in Natural Gas Range by Continuous Recording Calorimeter

Standard Details

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 StandardDetails 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:

	Sections
Air-Gas Ratio Test	11
Apparatus	5
Basis of Measurement	14
Cold Balance Test	10
Compensation of Complicating Factors	13
Condition of Gas Sample	7
Definitions	2
Installation of Apparatus	6
Maintenance	Appendix X1
Operating Precautions	Appendix X2
Operation and Checking of Apparatus	9
Precision	15
Scope	1
Significance and Use	4
Standardization of Calorimeter	12
Standardization, Preliminary, of Calorimeter by Hydrogen	8
Summary of Test Method	3

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.