Specification for gypsum building plaster: Part 1 excluding premixed lightweight plasters — IS 2547: Part 1 (1976) Testing

Yes. IS 2547 Part 1:1976 applies to specified types of gypsum building plaster used in construction, while specifically excluding premixed lightweight gypsum plasters. It establishes requirements intended to help assess the quality and suitability of gypsum plaster for building applications.

Chemical evaluation may include parameters such as purity, sulphur trioxide (SO₃), calcium oxide (CaO), soluble salts and loss on ignition. These tests help determine the composition and quality of gypsum plaster and support conformity assessment against the applicable requirements of the standard.

Physical testing under IS 2547 Part 1 can include residue on sieve, setting characteristics, transverse strength, soundness, mechanical resistance and expansion on setting. The applicable tests depend on the type and classification of gypsum plaster being assessed.

Gypsum plaster testing helps manufacturers verify that their material meets specified chemical and physical requirements before supplying it for construction use. Proper testing can also support quality control, product consistency and documentation required for compliance or certification activities.

Manufacturers, importers and suppliers dealing with gypsum building plaster may require testing to determine conformity with IS 2547 Part 1. Testing requirements should be selected according to the product type, applicable specifications and current BIS requirements.

Yes. Certko can help businesses identify the relevant IS 2547 Part 1 testing requirements and coordinate suitable laboratory testing for gypsum building plaster. This can support technical compliance, quality verification and preparation of test documentation.

Plaster of Paris, classified as beta hemihydrate gypsum plaster, is among the plaster types addressed by IS 2547 Part 1. Its applicable chemical and physical properties can be evaluated through testing to determine conformity with the requirements specified for the relevant product classification.

No. IS 2547 Part 1:1976 specifically concerns gypsum building plaster excluding premixed lightweight plasters. Products falling outside this scope should be evaluated against the appropriate applicable specification or standard.