Standard of Glass Products – Heat Absorption Glass

•  Cotent and Application Range

This standard prescribes the sort, technical requirements, inspection method, inspection rules, marks, package, transporting and storage of bepainted heat absorption glass.

•  Referenced Standard

GB/T 2680 Glass for architecture usage: visible light transmission, sunlight direct transmission, solar overall transmission, ultraviolet radiation transmission and the measurement about the parameters of glass.

GB 4871 General flat glass

GB 11614 Float glass

GB 11942 Chroma measuring method of colored architecture material

•  Sort

•  According to production technics, it is sorted as heat absorption general flat glass and heat absorption float glass.

•  According to color, it is sorted as brown, gray and blue.

•  According to thickness, it is sorted as 2mm , 3mm , 4mm , 5mm , 6mm , 8mm , 10mm , 12mm .

•  According to its appearance quality, it is sorted as excellent, good anad eligible.

•  Technical Requirements

•  The tolerance of thickness, and dimension (including deflecxion), camber, brush line and unfilled corner, and appearance quality.

Heat absorption general flat glass consults GB 4871; heat absorption float glass consults GB 11614.

•  Optical Property

The optical properties can be described with visible light transmission and sunlight direct transmission. If the numerical value of these two are conversed to the standard thickness of 5mm , and then they should consult rules in Table 1.