1.1 This practice describes a method for obtaining constant relative humidity ranging from 30 to 98% at temperatures ranging from 0 to 70°C in relatively small containers by means of an aqueous glycerin solution. 1.2 This practice is applic
ASTM
Standard Practice for Maintaining Constant Relative Humidity by Means of Aqueous Glycerin Solutions
STD-49069
1997
2003-03-10
3