ISO 21690 is one of a series of standards regarding glass in buildings.
ISO 21690 specifies requirements for the properties of glass blocks used for the construction of non-load-bearing walls and horizontally spanning panels. ISO 21690 also specifies test methods used to verify these properties for square, rectangular and circular glass blocks.
ISO 21690 on the specifications and test methods for glass blocks is useful for:
Light transmitting glass blocks are used for the construction of building elements both in non-load-bearing walls and load-bearing horizontally spanning panels. Glass blocks need to meet physical performance requirements as they contribute to the building’s visual appearance and structural integrity.
ISO 21690 improves your knowledge of glass blocks used in buildings by informing you about the types of glass blocks, their dimensions and the irregularities that can occur while producing them.
ISO 21690 also provides you with the test methods that can help you to verify the physical capabilities of the hollow glass blocks.
Overall, the guidelines of help you to produce or install hollow glass blocks in buildings that meet the necessary requirements.
BS ISO 21690:2021 supersedes ISO 21690:2006, which has been technically revised. The main changes compared to the previous edition are as follows:
ISO 21690