Welding and allied processes. Types of joint preparation. Part 1. Manual metal arc welding, gas-shielded metal arc welding, gas welding, TIG welding and beam welding of steels
Medical laboratory technologies. Quality control of clinical laboratory tests. Description of materials for quality control of clinical laboratory investigations
Food additives. Quantitative determination of preservatives (benzoic and sorbic acids and their salts) in complex food additives by chromatographic method