Others

J : Issues certificates with the JCSS symbol for measurement act traceability system.
A : Issues certificates with the A2LA (American Association for Laboratory Accreditation) symbol.
 j : Issues certificates with the jcss symbol.

Other Measuring Instruments
Optical glass filters    
Audiometers J  
Oxygen alarms    
Stopwatches, Watches   A
Rotational viscometers   A
Benzoic acid j  
Product Testing
Sound power level    

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