Non-ferrous metals. Determination of grain size by planimetric method
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Pads for fixing details of metal casting patterns. Dimensions
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Rotating electrical machinery. Brush holders and brackets. Serrations on fixing surface. Shapes and dimensions
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Oscillator, modulator and regulation tubes with anode dissipated power above 25 W. Method of measurement of leakage currents between electrodes and between cathode and heater
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General methods of test for pigments and extenders. Determination of pH value of an aqueous suspension
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Organic dyestuffs and inorganic pigments. Method for determination of density
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