scope:

This part of ISO 28278 specifies requirements for the suitability of supported and unsupported glass products for use in the structural sealant glazing (SSG) technique. Regarding glass products, this part of ISO 28278 constitutes a supplement to the requirements specified in the corresponding ISO standards with regard to verifying suitability for use in SSG systems.

Only soda lime silicate glass is taken into consideration in this part of ISO 28278.

The glass products are installed and bonded into the support under controlled environmental conditions, as described in ISO 28278-2.

Plastic glazing is excluded from the scope of this part of ISO 28278.

The structural, weatherproofing and sealant and outer seal of insulating glass unit (IGU) products, which are commonly used in structural glazing applications, are those based on organo-siloxane, "silicone" polymers, and recommended for use by the sealant manufacturer. Where there is a risk of earthquake, the sealant design may not be sufficient to resist the loads, and complementary arrangements may be necessary.

This part of ISO 28278 does not preclude the use of other sealant types where these can demonstrate suitability for service according to this part of ISO 28278 and when used following the recommendations of the sealant manufacturer.