IS 8183:1993 is the Indian Standard (BIS) for rigid mineral wool thermal insulating materials. This standard specifies the requirements for rigid mineral wool (rock wool and slag wool) thermal insulation materials, supplied as slabs or preformed pipe sections. It covers material properties, dimensions, and physical requirements like thermal conductivity, density, and fire performance, along with testing and conformity criteria.
Specifies requirements for rigid mineral wool thermal insulating materials.
BIM-relevant code. See the BIM Hub for ISO 19650, IFC, and LOD/LOIN frameworks used alongside it.
| Parameter | IS Value | International | Source |
|---|---|---|---|
| Classification Basis | Groups 1-6 based on max service temperature (e.g., Group 6 for 750°C) | Types (e.g., Type I-VIII) based on density, strength & temp. (e.g., Type V for 649°C) | ASTM C612 |
| Thermal Conductivity (at 50°C mean temp, ~100 kg/m³ density) | ≤ 0.041 W/m.K | ≤ 0.038 W/m.K (Value interpolated for Type IVA at 122°F/50°C) | ASTM C612-14 |
| Compressive Strength (at 10% deformation, for slabs >40mm) | ≥ 20 kPa (for density ≥ 100 kg/m³) | Performance level CS(10)20 designates a value ≥ 20 kPa | EN 13162 |
| Maximum Service Temperature | Up to 750°C (Group 6) | Declared by manufacturer, e.g., ST(+)750 indicates 750°C. Not a primary classification. | EN 13162 |
| Density Tolerance | ± 15% | Density is a declared, not a primary classification property. ASTM C612 specifies 'Nominal Density'. | EN 13162 / ASTM C612 |
| Thickness Tolerance (Slabs < 75mm) | ± 3 mm | Class T3: -1% or -1mm (greater) and +3mm | EN 13162 |
| Combustibility | Non-combustible per IS 3144 | Euroclass A1 (non-combustible) per EN 13501-1 | EN 13162 |