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BS EN ISO 3262-20:2021

BS EN ISO 3262-20:2021

$102.76

Extenders. Specifications and methods of test – Fumed silica

Published By Publication Date Number of Pages
BSI 2021 22
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This document specifies requirements and corresponding methods of test for fumed silica.

PDF Catalog

PDF Pages PDF Title
2 undefined
7 Foreword
9 1 Scope
2 Normative references
3 Terms and definitions
10 4 Requirements and test methods
5 Sampling
6 Determination of silica content
6.1 Principle
11 6.2 Reagents
6.3 Apparatus
6.4 Procedure
6.4.1 Number of determinations
6.4.2 Test portion
6.4.3 Determination
12 6.5 Expression of results
6.6 Precision
7 Determination of aluminium oxide, titanium (IV) oxide and iron (III) oxide contents by spectrometry
7.1 Principle
7.2 Reagents and materials
13 7.3 Apparatus
14 7.4 Procedure
7.4.1 Preparation of standard matching solutions
7.4.2 Spectrometric measurement
15 7.4.3 Calibration graph
7.4.4 Preparation of the test solution
7.4.5 Determination of aluminium, titanium and iron
7.4.6 Determination of the total loss on ignition
16 7.5 Expression of results
7.5.1 Calculation of the concentration of each element
7.5.2 Calculation of the oxide content for each element
17 7.6 Precision
8 Determination of carbon content
8.1 Principle
8.2 Reagents and materials
18 8.3 Apparatus
8.4 Procedure
8.4.1 Preparation of apparatus
8.4.2 Calibration
8.4.3 Determination
8.5 Expression of results
19 8.6 Precision
9 Determination of chloride content
9.1 Principle
9.2 Reagents
9.3 Apparatus
20 9.4 Procedure
9.4.1 Number of determinations
9.4.2 Test portion
9.4.3 Determination
9.5 Expression of results
21 9.6 Precision
10 Test report

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BS EN ISO 3262-20:2021
$102.76