3.1 These test methods provide for the classification of various grades of sulfuric acid and for the determination of various impurities. Acid strength and impurity levels are important factors in many uses of sulfuric acid.

1.1 These test methods cover the analysis of sulfuric acid.

1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only.

1.3 The analytical procedures appear in the following order:

Sections

Total Acidity

 8 to 16

Baumé Gravity

17 to 26

Nonvolatile Matter

27 to 33

Iron

34 to 43

Sulfur Dioxide

44 to 51

Arsenic

52 to 61

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. Specific hazards statements are given in Section 5.