What is the main purpose of IS 16010 material?

Its main purpose is to provide acoustic insulation by absorbing sound. Performance is measured by the Sound Absorption Coefficient (NRC) specified in Clause 7 and Table 3.

Is mineral wool under this code fireproof?

The base mineral wool is classified as 'Non-combustible' as per Clause 6.4, when tested according to IS 3144. However, any facings or adhesives used may be combustible.

What does the NRC value mean?

NRC (Noise Reduction Coefficient) is an average rating of how much sound an acoustic product can absorb. A higher NRC (closer to 1.0) means better sound absorption.

How is the density of the mineral wool slab specified?

The standard specifies various classes based on nominal density, such as Class 48 (48 kg/m³), Class 64 (64 kg/m³), etc., with a tolerance of ±15 percent (Table 2).

IS 16010

: 2012

Mineral wool boards/slabs for acoustic insulation - Specification

CurrentSpecializedSpecificationBIMMaterials Science · Insulation Materials

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This standard specifies the requirements for mineral wool (rock and slag wool) boards and slabs intended for use as acoustic insulation. It covers material composition, dimensions, physical properties such as density, thermal conductivity, and fire performance, with a primary focus on the sound absorption coefficient (NRC).

Specifies requirements for mineral wool boards and slabs used for acoustic insulation.

Quick Reference Values

Maximum thermal conductivity0.040 W/(m.K) at 25°C mean temp

Minimum sound absorption coefficient (NRC) for Class 48, 50mm0.90

Tolerance on thickness±3 mm or ±5 percent, whichever is greater

Tolerance on density±15 percent of nominal density

CombustibilityShall be non-combustible when tested as per IS 3144

Standard nominal densities48, 64, 96, 120 kg/m³

Practical Notes

Ensure the mounting type used for installation (e.g., direct mounting, with air gap) matches the type specified in the acoustic test report to achieve the rated NRC value.

While the base mineral wool is non-combustible, verify the fire rating of any facings (like tissue or fabric) as they can affect the overall fire performance of the product.

Use personal protective equipment (PPE) like gloves, masks, and goggles during handling and installation, as mineral wool fibers can cause skin and respiratory irritation.