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ASTM C703-72(1999)

Historical Reaffirmation

Standard Test Methods for Spalling Resistance of Porcelain Enameled Aluminum

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1.1 These test methods cover accelerated determination of the resistance of porcelain enamel coatings on aluminum alloys to spalling from exposure to moisture or weathering. Method A, using a 5% solution of ammonium chloride, requires 96-h immersion while Method B, using a 1% solution of antimony trichloride, is completed after 20 h of immersion. The spalling tendency is evaluated by the same criteria in both methods. While either method is suitable for magnesium silicon alloys, such as 6061, Method B is preferred for simple alloys or commercially pure aluminum, such as 1100.

1.2 The methods appear in the following order:

Sections Method A---Ammonium Chloride 4 to 9 Method B---Antimony Trichloride 10 to 15

SDO ASTM: ASTM International
Document Number C703
Publication Date March 10, 1999
Language en - English
Page Count 3
Revision Level 72(1999)
Supercedes
Committee B08.12
Publish Date Document Id Type View
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