State system for ensuring the uniformity of measurements. State primary standards and state verification schedule for means of measuring specific conductivity of solutions of electrolytes within the range of 1x10 in minus 4 degree to 1x10 in 2 degree Sm/m
Industrial automation systems and integration. Safety arrangements of industrial plants by means of process control engineering. Part 4. Verification of the hardware of safety instrumented system
Medical laboratory technologies. Quality control of clinical laboratory tests. Part 2. Rules for intra-laboratory quality control of quantitative methods of clinical laboratory tests using control materials
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