BS 1191-1:1973
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Specification for gypsum building plasters Excluding premixed lightweight plasters
Hardcopy , PDF
15-02-2006
English
05-10-1973
Co-operating organizations
Foreword
1 General
1.1 Scope
1.2 Definitions
1.3 Classification
1.4 Purity
1.5 Composition
1.6 Marking
1.7 Samples for testing and sampling
1.8 Manufacturer's certificate
2 Quality of the different classes
2.1 Class A. Plaster of paris
2.2 Class B. Retarded hemihydrate gypsum plaster
2.3 Class C. Anhydrous gypsum plaster
2.4 Class D. Keene's plaster
Appendix A - Determination of chemical composition and loss on
ignition
Appendix B - Examination for soundness
Appendix C - Method of determining transverse strength
Appendix D - Determination of mechanical resistance by the dropping
ball test
Appendix E - Determination of expansion
Appendix F - Method of stabilizing classes A and B plasters
Appendix G - Determination of freedom from coarse particles
Appendix H - Examples of typical classification markings required
by 1.6
Publications referred to
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