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ASTM D4891用化学计量燃烧法在天然气系列中煤气发热值试验方法

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ASTM D4891用化学计量燃烧法在天然气系列中煤气发热值试验方法
ASTM D4891  Standard Test Method for Heating Value of Gases in Natural Gas Range by Stoichiometric Combustion
ASTM D4891用化学计量燃烧法在天然气系列中煤气发热值试验方法

This test method provides an accurate and reliable procedure to measure the total heating value of a fuel gas, on a continuous basis, which is used for regulatory compliance, custody transfer, and process control.
Some instruments which conform to the requirements set forth in this test method can have response times on the order of 1 min or less and can be used for on-line measurement and control.
The method is sensitive to the presence of oxygen and nonparaffin fuels. For components not listed and composition ranges that fall outside those in Table 1, modifications in the method may be required to obtain correct results.
1. Scope
1.1 This test method covers the determination of the heating value of natural gases and similar gaseous mixtures within the range of composition shown in Table 1.
1.2 This standard involves combustible gases. It is not the purpose of this standard to address the safety concerns, if any, associated with their 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.

2. Referenced Documents (purchase separately)
ASTM Standards
D1826 Test Method for Calorific (Heating) Value of Gases in Natural Gas Range by Continuous Recording Calorimeter
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
Index Terms
natural gas range by stoichiometric conversion;
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