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BS ISO 21690:2021:2022 Edition

BS ISO 21690:2021:2022 Edition

$102.76

Glass in building. Glass blocks. Specification and test methods

Published By Publication Date Number of Pages
BSI 2022 22
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PDF Catalog

PDF Pages PDF Title
2 National foreword
6 Foreword
7 Introduction
9 1 Scope
2 Normative references
3 Terms and definitions
10 4 Symbols
5 Types of glass block
5.1 Categories
11 5.2 Shapes of glass block
5.3 Surface aspect and treatment
12 6 Dimensional tolerances
6.1 Methods
6.2 Hollow glass block face thickness
6.3 External dimensions
7 Irregularities inherent to the production of hollow glass block
7.1 Dimensional irregularities measurement method
7.1.1 Welded seam protrusion
13 7.1.2 Twisting or misalignment
7.1.3 Face depressions or bulge
7.2 Dimensional irregularities limitation
14 8 Appearance for hollow glass blocks
8.1 Method
8.2 Appearance requirements
15 9 Mechanical properties
9.1 Compressive strength of hollow glass blocks
9.2 Applied load test
10 Thermal shock resistance for hollow glass blocks
16 Annex A (normative) Mechanical resistance test procedures
19 Annex B (informative) Mechanical resistance test procedures ā€” Thermal shock test procedures
20 Bibliography

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BS ISO 21690:2021
$102.76