Mechanical vibration. Methods for the calibration of vibration and shock transducers. Part 21. Vibration calibration by comparison to a reference transducer
Mineral fertilizers. Method for determination of total mass fraction of nitrogen in compound fertilizers (distillation method using the chromium reduction of nitrate nitrogen and mineralization of organic nitrogen)
System of standards on information, librarianship and publishing. National rubricator for scientific and technical information. Structure, rules for use and maintenance
€25
Ask a question
Message sent
Your message has been sent. Our experts will respond you shortly. Thank you!
