Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
Position: Search valid to be valid superseded to be superseded abolished to be abolished
Standard No. Title Price(USD) Delivery Status Add to Cart
JJG 2017-2005 Verification Scheme of Measuring Instruments for Underwater Sound Pressure 120.0 via email in 1~3 business day valid
GB/T 4854.1-1999 Acoustics--Reference zero for the calibration of audiometric equipment--Part 1: Reference equivalent threshold sound pressure levels for pure tones and supra-aural earphones 150.0 via email in 1~3 business day abolished
About Us | Contact Us | Payment
Tel: +86-10-8572 5655 | Fax: +86-10-8581 9515 | Email: | QQ: 672269886
Copyright: Codeofchina Inc 2008-2020