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ASTM C169 - 16(2022)

Standard Test Methods for Chemical Analysis of Soda-Lime and Borosilicate Glass

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Edition date: 2022-07-01
In Force
Available languages: English
Summary:

Keywords: chemical analysis; glass; referee analysis; routine analysis ;
Scope:

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-
     plexiometric Titration

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
     the Tetraphenylborate Method

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,
     and BaO, Na2O, and K2O by Gravimetric Method

45 – 51

 

BaO, Al2O3, CaO, and MgO by Atomic Absorption; and
     Na2O and K2O by Flame Emission Spectroscopy

52 – 59

 

SO3 (Total Sulfur)

60

 

B2O3

61 – 62

 

Fluorine by Pyrohydrolysis Separation and Specific Ion
     Electrode Measurement

63 – 66

 

P2O5 by the Molybdo-Vanadate Method

67 – 70

 

Colorimetric Determination of Ferrous Iron Using 1,10
     Phenanthroline

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.
ICS: 81.040.10-Raw materials and raw glass
CTN: C14.02 - C14.02

Standards Cancellations

Anula a C0169-16

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