Plastics. Methods of exposure to direct weathering, to weathering using glass-filtered daylight, and to intensified weathering by daylight using Fresnel mirrors.— 34 стр.
Methods of testing plastics. Optical and colour properties, weathering, Determination of yellowness index. Determination of the colour of near-white or near-colourless materials— 12 стр.
Sampling procedures for inspection by attributes, Specification for sampling plans indexed by limiting quality (LQ) for isolated lot inspection— 30 стр.
