scope:

This International Standard specifies the requirements for factory-made calcium silicate products which are used for thermal insulation of industrial installations and building equipment with an operating temperature of up to approximately +1 100 °C.

NOTE Calcium silicate products can be used at temperatures lower than 0 °C. For operating temperatures below 0 °C, special tests, regarding the suitability of the product in the intended application, are advised (e.g. liquefaction of oxygen). It is advisable to seek the advice of the manufacturer(s) in all cases.

The products are manufactured in the form of boards, pipe sections, segments and prefabricated ware.

This International Standard describes product characteristics and includes procedures for testing, evaluation of conformity, marking and labelling.

Products covered by this International Standard are also used in prefabricated thermal insulation systems and composite panels; the structural performance of systems incorporating these products is not covered.

This International Standard does not specify the required level or class of a given property required to be achieved by a product in order to demonstrate fitness for purpose in a particular application. The levels required for a given application can be found in regulations and invitations to tender.

This International Standard is not applicable to

a) products with a declared thermal conductivity greater than 0,6 W/(m⋅K) at 23 °C;

b) products intended to be used for the insulation of the building structure;

c) the acoustical aspects

1) direct airborne sound insulation, and

2) impact noise transmission index.