State system for ensuring the uniformity of measurements. State special standard and all-union verification schedule for means measuring of absorbed dose of X-ray radiation at maximum energy from 3 to 9 pJ (20 to 60 keV)
Low voltage surge protective devices. Part 21. Surge protective devices connected to telecommunications and signalling networks. Performance requirements and testing methods
€10
Ask a question
Message sent
Your message has been sent. Our experts will respond you shortly. Thank you!
