IS 5900 : 1970 Specification for Hair Hygrograph

1 Scope

1.1 This standard specifies the requirements for hairhygrograph. The scale value of the instrument is such thatatmospheric relative humidity correct up to one percent may be readon a suitable chart.

2 References

IS 2 :1960 Rules for rounding offnumerical values

IS 5924 : 1970Specification for clock mechanisms and drums formeteorological instruments

IS 5947 : 1970 Chartsfor recording meteorological instruments