This standard establishes guidelines for the construction and use of enclosures with volumes less than 200 dm3, in order to obtain atmospheres of constant relative humidity at given temperatures, using saturated aqueous salt solutions, glycerol/water solutions or sulfuric acid/water solutions, for conditioning and testing plastics. It specifies the procedures to be followed to maintain the relative humidities of the conditioning and testing atmospheres within the required tolerances, at the temperatures specified by particular International Standards.
DS/EN ISO 483:2006 history
2006DS/EN ISO 483:2006 Plastics - Small enclosures for conditioning and testing using aqueous solutions to maintain the humidity at a constant value