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Inspecting Surfaces from a Normal Viewing Position AS/NZS 2311:2009
Generally, variations in surface colour, texture and finish of walls, ceilings, floors and roofs, and variations in glass and similar transparent materials are viewed where possible from a normal viewing position. A normal viewing position is looking at a distance of 1.5-2.0 metres (600mm for appliances and fixtures) with the surface or material being illuminated by “non-critical” light. “Non-critical light” means the light that strikes the surface is diffused and is not glancing or parallel to the surface. Slight variations in colour and finish or materials do not always constitute a paint defect.