The IS 2095 Part 2: 2001 outlines the standards for coated and laminated gypsum plaster boards, which serve as lining materials for ceilings, walls, and lightweight partitions. It details specifications including production methods, dimensions, permissible tolerances, sampling, testing protocols, and quality benchmarks for gypsum boards enhanced with veneers, plastic films, or paper coatings. This standard is vital for manufacturers, suppliers, and building professionals seeking reliable, fire-resistant, and lightweight interior finishing solutions.
Overview
The IS 2095 Part 2: 2001 outlines the standards for coated and laminated gypsum plaster boards, which serve as lining materials for ceilings, walls, and lightweight partitions. It details specifications including production methods, dimensions, permissible tolerances, sampling, testing protocols, and quality benchmarks for gypsum boards enhanced with veneers, plastic films, or paper coatings. This standard is vital for manufacturers, suppliers, and building professionals seeking reliable, fire-resistant, and lightweight interior finishing solutions.
Audience
Contents
Structure
Defines the dimensional, physical, and testing requirements of coated and laminated gypsum plaster boards used in construction and interior applications. Specifies board sizes, thickness ranges, and rounding rules for test values, ensuring adherence to IS 2:1960 for significant figures.
Lists other Indian Standards referenced by IS 2095 Part 2 and emphasizes verifying the latest editions. Details rounding conventions per IS 2:1960 and outlines board size and mass requirements.
Clarifies terms related to coated gypsum boards, including dimensions and mass per unit area, to ensure uniform interpretation and application.
Details material composition, including gypsum plaster and fibres, quality inspection procedures, allowable defect limits, and testing standards for mechanical and thermal properties.
Describes the production stages of gypsum fibre boards starting from cellulose fibre preparation, mixing with gypsum, forming, pressing, drying, surface bonding, and final packaging.
Specifies nominal sizes and allowable dimensional deviations for length, width, and thickness. Emphasizes surface flatness, edge straightness, and corner squareness.
Enumerates the minimum mass, transverse bending strength, thermal conductivity, and other mechanical test requirements along with sampling and acceptance criteria.
Outlines the examination procedures for surface defects, shape, dimensions, and mass. Defines the defective limits per lot and the subsequent testing requirements.
Provides guidelines for random sampling, sample sizes based on lot quantity, permissible defects, and testing for mechanical and thermal properties to confirm lot conformity.
Specifies environmental compliance prerequisites for ECO Mark eligibility, including mandatory use of phospho-gypsum, necessary environmental clearances, documentation, and marking requirements.
Describes minimum mass standards, packaging norms, and mandatory marking details such as manufacturer identification, board size, batch number, and ECO Mark declarations.
Lists the composition of the standards committee responsible for IS 2095 Part 2, typically including industry experts, government officials, academia, and user representatives.
Frequently Asked
According to IS 2095 Part 2 (2001), coated and laminated gypsum plaster boards consist of a gypsum core conforming to IS 2095 Part 1 or Part 3, bonded with surface layers such as wood veneers, plastic films, or paper. Fibre reinforcement includes natural fibres like wood fibres or synthetic fibres integrated within the core or coating to improve mechanical strength and durability. These materials are selected to provide enhanced surface finish, moisture resistance, and improved mechanical attributes.
The manufacturing process described in IS 2095 Part 2 involves preparing cellulosic fibres from recycled paper, uniformly mixing them with gypsum plaster, spreading the mixture on perforated belts or moulds, followed by continuous or manual pressing to form boards. After setting, the boards are demoulded, dried, and treated on the surface with a bonding agent to reduce water absorption and dust, preparing them for subsequent coating or lamination. Finally, the finished boards are stacked and packed for distribution.
Boards must be rectangular or square, with dimensional tolerances as follows: length with a tolerance of +0 mm / -6 mm, width with +0 mm / -5 mm, and thickness with +0 mm / -6 mm. The surface should be flat and free from defects, edges must be straight, and corners should be square. Boards failing these criteria are considered defective, ensuring uniformity and quality in production.
Quality assessment follows a statistical sampling method where boards are randomly selected from each lot based on lot size, complying with IS 4905. Visual inspections check shape, size, mass, and fibre content. Boards passing visual scrutiny are further tested for transverse bending strength and thermal conductivity. The lot is accepted only if defectives remain within permissible limits specified in sampling tables; otherwise, the lot is rejected, ensuring consistent product quality.
To be eligible for ECO Mark certification, gypsum plaster boards must be manufactured using phospho-gypsum, an industrial by-product, as stipulated in Clause 10.2. Manufacturers must obtain environmental clearances from the State Pollution Control Board and provide documentary proof of phospho-gypsum usage to BIS during the ECO Mark application. The products must bear both the BIS Standard Mark and ECO Mark, promoting environmentally sustainable practices.
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