Petroleum and natural gas industry. Subsea production systems. Pipes of nickel-chromium-molybdenum-columbium alloys and nickel-chromium-molybdenum-silicon alloys. Specifications
Textiles. Quantitative chemical analysis. Part 6. Mixtures of viscose, certain types of cupro, modal or lyocell with certain other fibres (method using formic acid and zinc chloride)