BS EN ISO 7490:2001
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Dental gypsum-bonded casting investments
Hardcopy , PDF
30-11-2006
English
15-03-2001
Contents
Foreword
Introduction
1 Scope
2 Term and definition
3 Classification
4 Requirements
4.1 Appearance of powder
4.2 Fluidity at working time
4.3 Setting time
4.4 Compressive strength
4.5 Linear setting expansion
4.6 Linear thermal expansion
5 Sampling, test conditions and mixing
5.1 Sampling
5.2 Test conditions
5.3 Mixing
6 Test methods
6.1 Visual examination
6.2 Fluidity at work time
6.3 Setting time
6.4 Compressive strength
6.5 Linear setting expansion
6.6 Linear thermal expansion
7 Manufacturer's instructions
8 Packaging
8.1 Packaging
8.2 Mould lining
9 Marking
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