Low-pressure, non adjustable regulators having a maximum outlet pressure of less than or equal to 200 mbar, with a capacity of less than or equal to 4 kg/h, and their associated safety devices for butane, propane or their mixtures— 124 стр.
Plastics. Determination of changes in colour and variations in properties after exposure to glass-filtered solar radiation, natural weathering or laboratory radiation sources— 24 стр.
Methods of testing plastics. Optical and colour properties, weathering, Determination of changes in colour and variations in properties after exposure to daylight under glass, natural weathering or laboratory light sources— 20 стр.
