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Standard No.	Title	Price(USD)	Delivery	Status	Add to Cart
GB/T 21230-2007	Acoustics - Guidelines for the measurement and assessment of exposure to noise in a working environment	$360.00	via email in 1~3 business day	superseded,2015-2-1,2008-5-1
GB/T 21230-2014	Acoustics―Determination of occupational noise exposure―Engineering method	$550.00	via email in 1~5 business day	valid,,2015-2-1
GB/T 21231-2007	Acoustics - Method for the measurement of airborne noise emitted by small air-moving devices	$360.00	via email in 1~3 business day	superseded,2018-10-1,2008-5-1
GB/T 21231.1-2018	Acoustics—Measurement of airborne noise emitted and structure-borne vibration induced by small air-moving devices—Part 1: Airborne noise measurement	$580.00	via email in 1~5 business day	valid,,2018-10-1
GB/T 21231.2-2018	Acoustics—Measurement of airborne noise emitted and structure-borne vibration induced by small air-moving devices—Part 2: Structure-borne vibration measurements	$400.00	via email in 1~5 business day	valid,,2018-10-1
GB/T 21232-2007	Acoustics - Guidelines for noise control in offices and workrooms by means of acoustical screens	$250.00	via email in 1~3 business day	valid,,2008-5-1
GB/T 22075-2008	HVDC converter station audible noise	$780.00	via email in 1~5 business day	valid,,2009-4-1
GB/T 22156-2008	Acoustics - Procedure for the comparison of noise-emission data for machinery and equipment	$250.00	via email in 1~3 business day	valid,,2009-2-1
GB/T 22157-2008	Acoustics - Specification of test tracks for the purpose of measuring noise emitted by road vehicles	$330.00	via email in 1~3 business day	abolished2018-10-01,2018-10-1,2009-2-1
GB/T 22157-2018	Acoustics—Specification of test tracks for measuring noise emitted by road vehicles and their tyres	$670.00	via email in 1~5 business day	valid,,2018-10-1
GB/T 22159.1-2012	Acoustics and vibration—Laboratory measurement of vibro-acoustic transfer properties of resilient elements—Part 1:Principles and guidelines	$360.00	via email in 1~5 business day	valid,,2013-6-1
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	$420.00	via email in 1~5 business day	valid,,2013-6-1
GB/T 22159.3-2008	Acoustics and vibration - Laboratory measurement of vibro-acoustic transfer properties of resilient elements - Part 3: Indirect method for determination of the dynamic stiffness of resilient supports for translatory motion	$480.00	via email in 1~5 business day	valid,,2009-2-1
GB/T 22159.4-2017	Acoustics and vibration-Laboratory measurement of vibro-acoustic transfer properties of resilient elements-Part 4:Dynamic stiffness of elements other than resilient supports for translatory motion	$430.00	via email in 1~5 business day	valid,,2018-5-1
GB/T 22159.5-2017	Acoustics and vibration-Laboratory measurement of vibro-acoustic transfer properties of resilient elements-Part 5:Driving point method for determination of the low-frequency transfer stiffness of resilient supports for translatory motion	$370.00	via email in 1~5 business day	valid,,2018-5-1
GB/T 25077-2010	Acoustics—Materials for acoustical applications—Determination of airflow resistance	$160.00	via email in 1~3 business day	valid,,2011-4-1
GB/T 25078.1-2010	Acoustics—Recommended practice for the design of low-noise machinery and equipment—Part 1:Planning	$450.00	via email in 1~5 business day	valid,,2011-4-1
GB/T 25078.2-2010	Acoustics - Recommended practice for the design of low-noise machinery and equipment - Part 2: Introduction to the physics of low noise design	$540.00	via email in 1~3 business day	valid,,2011-4-1
GB/T 25079-2010	Acoustics - Application of new measurement methods in building and room acoustics - MLS and SS methods	$330.00	via email in 1~3 business day	valid,,2011-4-1
GB/T 25102.1-2010	Electroacoustics - Hearing aids - Part 1：Hearing aids with induction pick-up coil input	$70.00	via email in 1~3 business day	valid,,2011-4-1
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