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ASTM D2943-02(2012)

Current Revision

Standard Test Method for Aluminum Scratch of 1,1,1-Trichloroethane to Determine Stability

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1.1 This is a screening test method to determine if sufficient inhibitors are present in 1,1,1-trichloroethane to provide at least minimal stability in the presence of aluminum.

1.2 Solvent passing this test method may not be stable for all applications.

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. A specific hazard statement is given in Section 6.

The degradation of insufficiently stabilized 1,1,1-trichloroethane, in the presence of aluminum, results in the formation of hydrochloric acid and polymeric residue. Thus, if such degradation is allowed to continue, the aluminum will be corroded and the 1,1,1-trichloroethane rendered unusable. The presence of free water invalidates this test method.

This test method can be used to determine if 1,1,1-trichloroethane is sufficiently stabilized to inhibit reaction with aluminum or aluminum alloys. Solvent passing this test method still may not be stable for all applications. Consult a producer for use applications.

Aluminum should not be used as a material of construction for pumps, tanks, pipelines, valves, spray equipment, or other handling equipment used for chlorinated solvents. Properly stabilized halogenated solvents are, however, commonly used in cleaning aluminum and other sensitive metals.

SDO ASTM: ASTM International
Document Number D2943
Publication Date March 1, 2012
Language en - English
Page Count 2
Revision Level 02(2012)
Supercedes
Committee D26.04
Publish Date Document Id Type View
March 1, 2012 D2943-02R12 Revision
Dec. 10, 2002 D2943-02 Revision
Jan. 1, 2000 D2943-96 Revision
Feb. 1, 2007 D2943-02R07 Reaffirmation
Jan. 1, 2000 D2943-96R00 Reaffirmation