Gallium. Chemical-atomic-emission method for the determination of aluminium, bismuth, cobalt, silicon, magnesium, manganese, copper, nickel, lead, silver, chromium, zinc and iron
State system for ensuring the uniformity of measurements. Methods of determination of waters samples composition and properties. General requirements for development
Safety of household and similar electrical appliances. Particular requirements for deep fat dryers, frying pans and similar appliances and test methods
