I.S. 27-2:1975

DECLARATION
Clauses
1 GENERAL
   1.1 Scope
   1.2 Definition
   1.3 Types
   1.4 Sampling
   1.5 Testing
2 QUALITY OF THE DIFFERENT TYPES
   2.1 Compliance with tests
        2.1.1 Type a.1. Browning plaster
        2.1.2 Type a.2. Metal lathing plaster
        2.1.3 Type a.3. Bonding plaster
        2.1.4 Type b. Final coat plaster
   2.2 Testing conditions
Appendices
A DETERMINATION OF SOLUBLE SODIUM AND MAGNESIUM SALTS
B DETERMINATION OF DRY BULK DENSITY
C METHOD OF DETERMINING COMPRESSIVE STRENGTH AND DRY
   SET DENSITY
   C.1 Apparatus
   C.2 Preparation of test specimen
   C.3 Standard consistence
   C.4 Compressive strength test
   C.5 Calculation of results
D DETERMINATION OF AVAILABLE LIME
E DETERMINATION OF MECHANICAL RESISTANCE BY THE
   DROPPING BALL TEST
   E.1 Apparatus
   E.2 Preparation of test specimens
   E.3 Standard consistence
   E.4 Mechanical resistance test procedure
F METHOD OF STABILIZING PREMIXED LIGHTWEIGHT GYPSUM
   PLASTERS
Notes for Users
G EXAMPLES OF TYPICAL CLASSIFICATION MARKINGS

Applies to common gypsum plasters suitable for use in building operations and in the manufacture of building materials. Also includes provisions regarding sampling and testing.