1.1 This standard covers non-dispersive infra-red analyzers used for the continuous determination of certain aspects of air quality by measuring gaseous constituents either in ambient or confin-ed atmosphere or in gaseous strums entering the ambient air.
1.2 It applies to infra-red analyzers specified for installation either indoors or outdoors.
1.3 It applies to the complete analyzer as an integral analytical unit, including all optical, mechanical, electrical and electronic portions. For the purpose of this standard, any regulated power supply provided with the analyzer or specified by the manufacturer, is considered part of the analyzer whether integral with the ana-lyzer or housed separately.
1.4 It does not apply to the required sample handling systems or other accessories such as recorders, analogue-to-digital converters or data acquisition systems, used in conjunction with the analyzer.
1.5 Safety requirements are not dealt with in this standard.
IS 12705-1989 history
1990IS 12705-1989 Air quality infrared analyzer performance