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ASTM C169-16(2022)
M00018263
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ASTM C169-16(2022) Standard Test Methods for Chemical Analysis of Soda-Lime and Borosilicate Glass
standard by ASTM International, 07/01/2022
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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:
| '' | '' | Sections |
| Procedures for Referee Analysis: | '' | |
| '' | Silica | 10 |
| '' | BaO, R2O2 (Al2O3'''+'''P2O5), CaO, and MgO | 11 ''' 15 |
| '' | Fe2O3, TiO2, ZrO2 by Photometry and Al2O3 by Com- | 16 ''' 22 |
| '' | Cr2O3 by Volumetric and Photometric Methods | 23 ''' 25 |
| '' | MnO by the Periodate Oxidation Method | 26 ''' 29 |
| '' | Na2O by the Zinc Uranyl Acetate Method and K2O by | 30 ''' 33 |
| '' | SO3 (Total Sulfur) | 34 ''' 35 |
| '' | As2O3 by Volumetric Method | 36 ''' 40 |
| '' | '' | '' |
| Procedures for Routine Analysis: | '' | |
| '' | Silica by the Single Dehydration Method | 42 ''' 44 |
| '' | Al2O3, CaO, and MgO by Complexiometric Titration, | 45 ''' 51 |
| '' | BaO, Al2O3, CaO, and MgO by Atomic Absorption; and | 52 ''' 59 |
| '' | SO3 (Total Sulfur) | 60 |
| '' | B2O3 | 61 ''' 62 |
| '' | Fluorine by Pyrohydrolysis Separation and Specific Ion | 63 ''' 66 |
| '' | P2O5 by the Molybdo-Vanadate Method | 67 ''' 70 |
| '' | Colorimetric Determination of Ferrous Iron Using 1,10 | 71 ''' 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.4''This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.