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ASTM D4051-10(2015)

Historical Reaffirmation

Standard Practice for Preparation of Low-Pressure Gas Blends

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1.1 This practice covers a laboratory procedure for the preparation of low-pressure multicomponent gas blends. The technique is applicable to the blending of components at percent levels and can be extended to lower concentrations by performing dilutions of a previously prepared base blend. The maximum blend pressure obtainable is dependent upon the range of the manometer used, but ordinarily is about 101 kPa (760 mm Hg). Components must not be condensable at the maximum blend pressure.

1.2 The possible presence of small leaks in the manifold blending system will preclude applicability of the method to blends containing part per million concentrations of oxygen or nitrogen.

1.3 This practice is restricted to those compounds that do not react with each other, the manifold, or the blend cylinder.

1.4 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.


3.1 The laboratory preparation of gas blends of known composition is required to provide primary standards for the calibration of chromatographic and other types of analytical instrumentation.

SDO ASTM: ASTM International
Document Number D4051
Publication Date Oct. 1, 2015
Language en - English
Page Count 4
Revision Level 10(2015)
Supercedes
Committee D02.04.0A
Publish Date Document Id Type View
May 1, 2010 D4051-10 Revision
April 10, 1999 D4051-99 Revision
Jan. 1, 2021 D4051-10R21 Reaffirmation
Oct. 1, 2015 D4051-10R15 Reaffirmation
May 1, 2004 D4051-99R04 Reaffirmation