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ASTM-C146:2009 Edition

ASTM-C146:2009 Edition

$44.96

C146-94a(2009) Standard Test Methods for Chemical Analysis of Glass Sand

Published By Publication Date Number of Pages
ASTM 2009 12
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1.1 These test methods cover the chemical analysis of glass sands. They are useful for either high-silica sands (99 % + silica (SiO 2 )) or for high-alumina sands containing as much as 12 to 13 % alumina (Al 2 O 3 ). Generally nonclassical, the test methods are rapid and accurate. They include the determination of silica and of total R 2 O 3 (see 11.2.4), and the separate determination of total iron as iron oxide (Fe 2 O 3 ), titania (TiO 2 ), chromium oxide (Cr 2 O 3 ), zirconia (ZrO 2 ), 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.

PDF Catalog

PDF Pages PDF Title
1 Scope
Referenced Documents
Significance and Use
2 Photometers and Photometric Practice
Purity of Reagents
Concentration of Acids and Ammonium Hydroxide
(NH
OH)
Filter Papers
Preparation of Sample
Precision and Bias
Silica (SiO
) by the Double Dehydration Method
3 Total R
O
by Ammonium Hydroxide (NH
OH) Precipitation
4 Preparation of the Sample for Determination of Iron Oxide, Titania, Alumina, and Zirconia
Iron Oxide (as Fe
O
) by the 1,10-Phenanthroline Method
5 Titania (TiO
) by the Tiron Method
Alumina (Al
O
) by the CDTA Complexiometric Titration
6 Zirconia (ZrO
) by the Pyrocatechol Violet Method (for All Samples)
7 Chromium Oxide (Cr
O
) by the 1,5-Diphenylcarbohydrazide Method
8 General Considerations
Silica (SiO
) by the Single Dehydration Method
Al
O
, CaO, and MgO by Atomic Absorption; Na
O and K
O by Flame Emission Spectroscopy
9 Reagents
Flame Buffer Solutions
10 Flame Spectrophotometry (Atomic Absorption and Emission)
Flame Reference Standards
TABLE 1
11 Preparation of Sample Solutions for the Determination of Al
O

Preparation of Sample Solutions for the Determination of Na
O and K
O
Comparison of Samples to Reference Standards
TABLE 2

12 Loss on Ignition
Keywords

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