What is ISO 3934 about?
ISO 3934 discusses rubber, vulcanized, and thermoplastics. ISO 3934 specifies a system of classification of materials used in preformed gaskets for buildings.
ISO 3934 applies to preformed gaskets made from vulcanized or thermoplastic rubber.
ISO 3934 applies to:
- Gaskets for use round the inside of door or window casings, i.e. weatherstripping (dynamic gaskets)
- Gaskets for glazing (static gaskets)
- Gaskets for use round infilling
- Gaskets for use between facade parts
- Gaskets for use between masonry walls
ISO 3934 provides characteristics required for the constituent materials, some functional tests on the gaskets and some functional tests on gaskets in Annexes A to E.
ISO 3934 applies to preformed gaskets made of cellular rubber designed for use at temperatures between −20 °C and +55 °C (thermal conditions category P1) and between −40 °C and +70 °C (thermal conditions category P3)
Who is ISO 3934 for?
ISO 3934 on preformed gaskets in buildings is applicable to:
- Manufacturers of gaskets
- Suppliers and dealers of gaskets
Why should you use ISO 3934?
Preformed gaskets used in buildings have conditions of use that differ depending on their function and position in the building.
ISO 3934 takes into account the various conditions to which the gaskets are subjected in order to define the material specifications and includes the static and dynamic stresses to which the gaskets are subjected which allows you to enhance the quality of preformed gaskets.
ISO 3934 gives you guidance on environmental conditions, classification and specifications, working compression range, compression force, compression recovery test, stress relaxation under specified compression and variation in length which allows you to enhance the safety of preformed gaskets.
What’s changed since the last update?
BS ISO 3934:2021 supersedes ISO 3934:2002, which is now withdrawn.
Changes in BS ISO 3934:2021 include –
- Requirements on estimation of lifetime have been added
- Hardness tolerance has increased
- References have been updated