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Optics and photonics. Densitometers. Terms and definitions
Document status: Active
Strengthening and sealing couplings for main gas pipelines. Basic principles
Document status: Active
Liquid petroleum products. Determination of fatty acid methyl ester (FAME) content in middle distillates. Infrared spectrometry method
Document status: Active
Medical x-ray apparatus. Service symbols
Document status: Replaced by GOST 24984-2022