Applicable to portable detectors, with or without built-in power sources, to be used on electrical systems operating between 15 Hz to 60 Hz.Cross References:IEC 60050-151:1978IEC 60050-601:1985IEC 60060-1:1989IEC 60068-1:1988IEC 60068-1:1988/AMD 1:1992IEC 60068-2-6:1982IEC 60068-2-14:1984IEC 60068-2-32:1975IEC 60068-2-32/AMD 2:1990IEC 60071-1:1993IEC 600410:1973IEC 60417IEC 60651:1979IEC 60651/AMD 1:1993IEC 60855:1985IEC 61235:1993ISO 3745:1977ISO 8402:1986ISO 9000:1987ISO 9002:1987ISO 9004:1987ICI 15.2:1986CENELEC HD 588.1 S1:1991EN 60068-1:1994CENELEC HD 323.2.6 S2:1988CENELEC HD 323.2.14 S2:1987EN 60068-2-32:1993EN 60071-1:1995EN 60417EN 60651:1994EN 60651/A1:1994EN 60855:1996EN 61235:1995EN 29002:1988EN 29004:1988