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Standard No. Title Price(USD) Delivery Status Add To Cart
GB/T 25498.5-2017 Electroacoustics--Simulators of human head and ear--Part 5: 2 cm3 coupler for the measurement of hearingaids and earphones coupled to the ear by means of ear inserts 160 (USD) via email in 1 business day VALID
GB/T 21231.1-2018 Acoustics—Measurement of airborne noise emitted andstructure-borne vibration induced by small air-moving devices—Part 1:Airborne noise measurement 600 (USD) via email in 1-5 business day VALID
JJG (民航) 002-1994 120 (USD) via email in 1-3 business day VALID
JJG 529-1988 Randon Vibration Test System 150 (USD) via email in 1-3 business day ABOLISHED
GB/T 17248.5-2018 Acoustics—Noise emitted by machinery and equipment—Determination of emission sound pressure levels at a work station and at other specified positions applying accurate environmental corrections 540 (USD) via email in 1-5 business day VALID
GB/T 21231-2007 Acoustics - Method for the measurement of airborne noise emitted by small air-moving devices via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 20441.6-2017 Electroacoustics—Measurement microphones—Part 6:Electrostatic actuators for determination of frequency response 420 (USD) via email in 1-3 business day VALID
GB/T 4854.6-2014 Acoustics—Reference zero for the calibration of audiometric equipment—Part 6:Reference hearing threshold levels for test signals of short duration 180 (USD) via email in 1-3 business day VALID
GB/T 3785.2-2010 Electroacoustics—Sound level meters—Part 2:Pattern evaluation tests 420 (USD) via email in 1-3 business day VALID
GB/T 17248.2-2018 Acoustics—Noise emitted by machinery and equipment—Determination of emission sound pressure levels at a work station and at other specified positions in an essentially free field over a reflecting plane with negligible environmental corrections 495 (USD) via email in 1-5 business day VALID
JJF 1269-1990 O.T.N. of the Primary Standard for the Sound Pressure of Reciprocity Technique 184 (USD) via email in 1 business day VALID
GB/T 3769-2010 Electroacoustics - Scales and sizes for plotting frequency characteristics and polar diagrams 180 (USD) via email in 1-3 business day VALID
GB/T 3785.1-2010 Electroacoustics—Sound level meters—Part 1:Specifications 480 (USD) via email in 1-5 business day VALID
GB/Z 21233-2007 Acoustics - Assessment of noise annoyance by means of social and socio-acoustics surveys 240 (USD) via email in 1-3 business day VALID
GB/T 35426.1-2017 Acoustics―Determination of dynamic stiffness―Part 1:Materials used under floating floors in dwellings 160 (USD) via email in 1 business day VALID
GB/T 7341.1-2010 Electroacoustics—Audiological equipment—Part 1:Pure-tone audiometers 420 (USD) via email in 1-3 business day VALID
JJG 1019-2007 Verification Regulation of Working Standard Microphones (Coupler Comparison Method) 300 (USD) via email in 1-3 business day VALID
GB/T 14368-1993 Acoustics-STANDARD ultrasonic power source via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
JJG 175-1998 Verification Regulation of Measuring Condenser Microphones 225 (USD) via email in 1-3 business day ABOLISHED
GB/T 22159.2-2012 Acoustics and vibration—Laboratory measurement of vibro-acoustic transfer properties of resilient elements—Part 2:Direct method for determination of the dynamic stiffness of resilient supports for translatory motion 420 (USD) via email in 1-3 business day VALID
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