Viewing positon for tiles
Variations in the surface colour, texture and finish of walls, ceilings, floors and roofs, and variations in glass and similar transparent materials are to be viewed where possible from a normal viewing position, defined as looking at a distance of 1.5 m or greater (600 mm for appliances and fixtures) with the surface or material being illuminated by ‘non-critical light’1. which is the light that strikes the surface, is diffused and is not glancing or parallel to that surface.
DIAGRAM E NORMAL VIEWING POSITIONS




Slight variations in the colour and finish of materials do not always constitute a defect.
Non-critical light is defined in appendix.B3 and D7 Australian Standard AS/NZS 2S89. Refer also to CSIRO TR 90/1, Report No. LB – 1992.
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