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Standard No. Title Price(USD) Delivery Status Add To Cart
JG/T 209-2007 Dampers for vibration energy dissipation of buildings 210 (USD) via email in 1-3 business day ABOLISHED
GB 7614-1987 An artificial ear of wide band type for the calibration of earphones used in audiometry 75 (USD) via email in 1-3 business day ABOLISHED
GB 6832-1986 Methods of measurement on headphones 240 (USD) via email in 1-3 business day ABOLISHED
SJ 1128-1977 Acoustic parameters and requirements for loudspeaker system for use in motion picture projection via email in ABOLISHED please email coc@codeofchina.com for quotation
GB 3661-1983 105 (USD) via email in 1-3 business day ABOLISHED
GB 3662-1983 150 (USD) via email in 1-3 business day ABOLISHED
GB/T 10240-1988 Specifications for the editing and production of prog-ramme source for subjective assessment of sound quali-ty of electro-acoustic products 90 (USD) via email in 1-3 business day VALID
SJ 1039-1976 via email in ABOLISHED please email coc@codeofchina.com for quotation
GB 11453-1989 Methods of measurement of performance characteristics of hearing aids under simulated in situ working conditions via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 11452-1989 Guide to hearing aid STANDARDs via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
SJ 1040-1976 via email in please email coc@codeofchina.com for quotation
GB 11455-1989 Hearing aid equipment not entirely worn on the listener 45 (USD) via email in 1-3 business day
SJ 1736-1981 via email in ABOLISHED please email coc@codeofchina.com for quotation
SJ 2054-1982 via email in ABOLISHED please email coc@codeofchina.com for quotation
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