Textiles. Methods for determination of certain aromatic amines from azo colorants. Part 3. Detection of the use of certain azo colorants, which may release 4-aminoazobenzene
State system for ensuring the uniformity of measurements. Reference systems for certification reference materials composition of magistral natural gas and substitute natural gas. The method of verification
Safety of transformers, reactors, power supply units and similar products for supply voltages up to 1 100 V. Part 2-6. Particular requirements and tests for safety isolating transformers and power supply units incorporating safety isolating transformers
