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ASTM International , 06/01/2021
Publisher: ASTM
File Format: PDF
$29.00$58.00
1.1''These test methods cover the chemical analysis of glass sands. They are useful for either high-silica sands (99'''%'''+'''silica (SiO2)) or for high-alumina sands containing as much as 12 to 13'''% alumina (Al2O3). Generally nonclassical, these test methods are rapid and accurate. They include the determination of silica and of total R2O3''' (see 11.2.4), and the separate determination of total iron as iron oxide (Fe2O3), titania (TiO2), chromium oxide (Cr2O3), zirconia (ZrO2), and ignition loss. Included are procedures for the alkaline earths and alkalies. High-alumina sands may contain as much as 5 to 6'''% total alkalies and alkaline earths. It is recommended that the alkalies be determined by flame photometry and the alkaline earths by absorption spectrophotometry.
1.2''These test methods, if followed in detail, will provide interlaboratory agreement of results.
Note 1:''For additional information, see Test Methods C169 and Practices E50.
1.3''These test methods appear in the following order:
Procedures for Referee Analysis:
Section
''
'''Silica (SiO2)'''Double Dehydration
10
'''Total R2O3'''Gravimetric
11
'''Fe2O3, TiO2, ZrO2, Cr2O3, by Photometric Methods and ''''''Al2O3 by Complexiometric Titration
12 ''' 17
'''Preparation of the Sample for Determination of Iron ''''''Oxide, Titania, Alumina, and Zirconia
12
'''Iron Oxide (as Fe2O3) by 1,10-Phenanthroline Method
13
'''Titania (TiO2) by the Tiron Method
14
'''Alumina (Al2O3) by the CDTA Titration Method
15
'''Zirconia (ZrO2) by the Pyrocatechol Violet Method
16
'''Chromium Oxide (Cr2O3) by the 1,5-Diphenylcarbo- ''''''hydrazide Method
17
Procedures for Routine Analysis:
'''Silica (SiO2)'''Single Dehydration
19
'''Al2O3, CaO, and MgO'''Atomic Absorption Spec- ''''''trophotometry
20'''25
'''Na2O and K2O'''Flame Emission Spectrophotometry
26-27
'''Loss on Ignition (LOI)
28
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.5''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.
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