NATIONAL BODY FOR STANDARDS AND METROLOGY

Catalog of standards

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Group code	Title
23.020	Fluid storage devices
23.040	Pipeline components and pipelines
23.060	Valves
23.080	Pumps
23.100	Fluid power systems
23.120	Ventilators. Fans. Air-conditioners
23.140	Compressors and pneumatic machines
23.160	Vacuum technology