This International Standard specifies requirements for the properties of glass blocks used for the construction of non-load-bearing walls and horizontally spanning panels. This International Standard also specifies test methods used to verify these properties for square, rectangular and circular glass blocks.
ISO 21690:2006 Referenced Document
EN 998-2 Specification for mortar for masonry - Part 2: Masonry mortar*, 2016-11-01 Update
ISO 12567-1:2000 Thermal performance of windows and doors - Determination of thermal transmittance by hot box method - Part 1: Complete windows and doors
ISO 15099:2003 Thermal performance of windows, doors and shading devices - Detailed calculations
ISO 48 Rubber, vulcanized or thermoplastic - Determination of hardness (hardness between 10 IRHD and 100 IRHD)*, 2010-09-01 Update
ISO 9050:2003 Glass in building - Determination of light transmittance, solar direct transmittance, total solar energy transmittance, ultraviolet transmittance and related glazing factors
ISO 21690:2006 history
2021ISO 21690:2021 Glass in building — Glass blocks — Specification and test methods
2006ISO 21690:2006 Glass in building - Glass blocks - Specification and test methods