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IS 13001:1991 is the Indian Standard (BIS) for guidelines for the manufacture of gypsum plaster in mechanized pan system. This standard provides guidelines for the manufacturing of gypsum plaster (hemi-hydrate or Plaster of Paris) using a mechanized pan system. It covers the quality of raw materials, the manufacturing process including calcination, and the requirements for the finished product.
Guidelines for the manufacture of gypsum plaster in Mechanized pan system
Overview
Status
Current
Usage level
Specialized
Domain
Materials Science — Building Limes and Gypsum Products
BIM-relevant code. See the BIM Hub for ISO 19650, IFC, and LOD/LOIN frameworks used alongside it.
Practical Notes
! Strict temperature control during calcination (140-160°C) is crucial to avoid producing 'dead-burnt' plaster which has poor setting properties.
! The mechanized pan system described offers better heat distribution and process control compared to traditional open pan or kiln methods, leading to a more consistent product.
! The final product is hygroscopic; proper packaging in moisture-proof bags is essential to prevent premature setting and loss of quality.
EN 13279-1:2013CEN (European Committee for Standardization), Europe
MediumCurrent
Gypsum binders and gypsum plasters - Part 1: Definitions and requirements
Specifies requirements for gypsum plasters, which is the end product of the IS 13001 manufacturing process.
ASTM C28 / C28M-21ASTM International, USA
MediumCurrent
Standard Specification for Gypsum Plasters
Defines the specifications for various types of gypsum plasters, the material that IS 13001 guides the manufacture of.
ASTM C472-18ASTM International, USA
LowCurrent
Standard Test Methods for Physical and Chemical Analysis of Gypsum, Gypsum Plasters and Gypsum Concrete
Provides the test methods to verify the physical and chemical properties targeted in the IS 13001 manufacturing guidelines.
Key Differences
≠IS 13001 is a prescriptive process standard, providing guidelines for manufacturing plaster using a specific method (mechanized pan system). International standards like EN 13279-1 and ASTM C28 are performance-based product specifications, not dictating the manufacturing method.
≠International standards (e.g., EN 13279-1) provide a detailed classification system for plasters based on properties like setting time and strength (e.g., B1, C3), allowing for a range of product types. IS 13001 provides a single set of target properties for one type of plaster.
≠IS 13001 specifies requirements for the raw material, such as a minimum 80% purity for gypsum. ASTM and EN standards focus on the final product's performance, making them material-agnostic as long as the end specifications are met.
≠IS 13001 explicitly states the calcination temperature range (140-160°C). As performance-based standards, ASTM C28 and EN 13279-1 do not specify manufacturing process parameters like temperature.
Key Similarities
≈All standards are fundamentally concerned with gypsum plaster derived from the calcination of raw gypsum (Calcium Sulphate Dihydrate) to produce Calcium Sulphate Hemihydrate.
≈The core physical properties used to define the quality and performance of the plaster are consistent across standards, including setting time, compressive strength, and fineness.
≈All standards serve the same ultimate purpose: to ensure the production of a reliable and consistent gypsum plaster for use as an interior building finish.
≈The concept of testing for fineness by sieving is common, although the specific sieve sizes and residue limits may differ.
Parameter Comparison
Parameter
IS Value
International
Source
Initial Setting Time
Not less than 20 min
≥ 20 min (for Type B plaster)
EN 13279-1:2013
Compressive Strength (Dry)
≥ 6.0 N/mm² (at 7 days)
≥ 2.0 N/mm² (for Type B1 plaster)
EN 13279-1:2013
Fineness (Residue on Sieve)
< 1% on 150-micron sieve
≤ 5% on 200-micron sieve (for standard fineness)
EN 13279-1:2013
Raw Gypsum Purity (CaSO₄·2H₂O)
≥ 80%
Not specified; performance-based criteria are used for the final product.
EN 13279-1 / ASTM C28
Calcination Temperature
140 °C to 160 °C
Not specified; manufacturing process is not prescribed.
EN 13279-1 / ASTM C28
Final Setting Time
Not more than 40 min
Typically ≤ 8 times the initial setting time, or not specified directly for base plaster.
EN 13279-1:2013
⚠ Verify details from original standards before use