NORTH ORBIT ACOUSTIC TESTING SERVICES BY STANDARD

Sound absorption and sound absorption coefficients by the reverberation room method

Laboratory measurement of airborne transmission loss of building partitions

Measurement of airborne sound attenuation between rooms in buildings

Classification for rating sound insulation

Laboratory measurement of noise reduction of sound-isolating enclosures

Standard practices for mounting test specimens during sound absorption tests

Field measurements of airborne sound attenuation of building facades and elements

Standard classification for determination of single-number metrics for impact noise

Field measurement of tapping machine impact sound transmission 

Standard classification for rating outdoor-indoor sound attenuation

Laboratory measurement of floor impact sound radiation using the tapping machine

Reverberation room procedure for determining sound power of HVAC equipment

Sound intensity testing procedures for determining the sound power of HVAC equipment

Department of Defense Design Criteria Standard Noise Limits

Airborne and structure-borne noise measurements and acceptance criteria of shipboard equipment

Transmission loss of barrier materials intended for application to plane and ship structures 

Measurement of noise emitted by railbound vehicles

Determination of sound power levels and sound energy levels of noise sources using sound pressure – Precision methods for reverberation test rooms

Determination of sound power levels and sound energy levels of noise sources using sound pressure - Survey method using an enveloping measurement surface over a reflecting plane

Requirements for the performance and calibration of reference sound sources used for the determination of sound lower levels

Determination of sound power levels of noise sources using sound intensity

Determination of sound power levels and sound energy levels of noise sources using sound pressure - Engineering method using an enveloping measurement surface over a reflecting plane

Alarm, alert sound level measurements

Measurement of airborne noise emitted by information technology and telecommunications equipment

Method for determining the emission sound pressure levels of machinery or equipment

Measurement of speech reduction levels of phone booths, work pods, and other furniture ensembles

Measurement method that applies to electro-acoustical transducers and passive and active sound systems

Measurement of airborne sound barrier performance of automotive materials and assemblies

Standard for measuring sensitive compartmented information facilities

Measurement of 

sound pressure levels in air

Criteria for evaluating room noise 

(Noise Criteria / NC)

Noise emitted by machinery and equipment — Guidelines for the use of basic standards for the determination of emission sound pressure levels at a work station and at other specified positions

Noise emitted by machinery and equipment — Determination of emission sound pressure levels at a work station and at other specified positions applying approximate environmental corrections

Noise emitted by machinery and equipment - Determination of emission sound pressure levels at a work station and at other specified positions from the sound power level

Determination of emission sound pressure levels at a work station and at other specified positions applying accurate environmental corrections