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1.1 These test methods cover the quantitative chemical analysis of soda-lime and borosilicate glass compositions for both referee and routine analysis. This would be for the usual constituents present in glasses of the following types: (1) soda-lime silicate glass, (2) soda-lime fluoride opal glass, and (3) borosilicate glass. The following common oxides, when present in concentrations greater than indicated, are known to interfere with some of the determinations in this method: 2 % barium oxide (BaO), 0.2 % phosphorous pentoxide (P₂O₅), 0.05 % zinc oxide (ZnO), 0.05 % antimony oxide (Sb₂O₃), 0.05 % lead oxide (PbO).

1.2 The analytical procedures, divided into two general groups, those for referee analysis, and those for routine analysis, appear in the following order:

SectionsProcedures for Referee Analysis:Silica10BaO, R2O₂ (Al₂O₃ + P₂O₅), CaO, and MgO11-15Fe₂O₃, TiO₂, ZrO₂ by Photometry and Al₂O₃ by Complexio-metric Titration16-22Cr₂O₃ by Volumetric and Photometric Methods23-25MnO by the Periodate Oxidation Method26-29Na₂O by the Zinc Uranyl Acetate Method and K₂O by the Tetraphenylborate Method30-33SO₃ (Total Sulfur)34 to 35As₂O₃ by Volumetric Method36-40Procedures for Routine Analysis:Silica by the Single Dehydration Method42-44Al₂O₃, CaO, and MgO by Complexiometric Titration, and BaO, Na₂O, and K₂O by Gravimetric Method45-51BaO, Al₂O₃, CaO, and MgO by Atomic Absorption; and Na₂O and K ₂O by Flame Emission Spectroscopy52-59SO₃ (Total Sulfur)60B₂O₃61 to 62Fluorine by Pyrohydrolysis Separation and Specific Ion Electrode Measurement63-66P₂O₅ by the Molybdo-Vanadate Method67-70Colorimetric Determination of Ferrous Iron Using 1,10 Phenanthroline71-76

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.