ISO 4677-1:1985
Atmospheres for conditioning and testing; Determination of relative humidity; Part 1 : Aspirated psychrometer method

Standard No.

ISO 4677-1:1985

Release Date

1985

Published By

International Organization for Standardization (ISO)

Latest

ISO 4677-1:1985

Scope

The method specified applies for temperatures within the range from 5 to 80 鳦. The property is determined with an uncertainty either not exceeding 3 % r. h. or not exceeding 3 % r. h., depending on the uncertainty in the value obtained for the wet-bulb temperature depression and on whether or not the dry-bulb temperature exceeds 40 鳦.

ISO 4677-1:1985 history

• 1985 ISO 4677-1:1985 Atmospheres for conditioning and testing; Determination of relative humidity; Part 1 : Aspirated psychrometer method