Safety of household and similar electrical appliances. Part 2-89. Particular requirements for commercial refrigerating appliances with an incorporated or remote refrigerant unit or compressor
Safety in emergencies. Personal protective equipment of the respiratory organs. Gas masks and filtering self-rescuers. Evaluating the effectiveness of protection
Graphic technology. Process control for the production of half-tone colour separations, proof and production prints. Part 1. Parameters and measurement methods
