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ASTM E104

Standard Practice for Maintaining Constant Relative Humidity by Means of Aqueous Solutions

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Organization: ASTM
Publication Date: 10 October 2002
Status: active
Page Count: 5
scope:

This practice describes one method for generating constant relative humidity (rh) environments in relatively small containers.

This practice is applicable for obtaining constant relative humidities ranging from dryness to near saturation at temperatures spanning from 0 to 50°C.

This practice is applicable for closed systems such as environmental conditioning containers and for the calibration of hygrometers.

This practice is not recommended for the generation of continuous (flowing) streams of constant humidity unless precautionary criteria are followed to ensure source stability.

Caution-Saturated salt solutions are extremely corrosive, and care should be taken in their preparation and handling. There is also the possibility of corrosive vapors in the atmospheres over the saturated salt solutions.2

This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Document History

ASTM E104
October 10, 2002
Standard Practice for Maintaining Constant Relative Humidity by Means of Aqueous Solutions
This practice describes one method for generating constant relative humidity (rh) environments in relatively small containers. This practice is applicable for obtaining constant relative humidities...
October 10, 2002
Standard Practice for Maintaining Constant Relative Humidity by Means of Aqueous Solutions
This practice describes one method for generating constant relative humidity (rh) environments in relatively small containers. This practice is applicable for obtaining constant relative humidities...
October 10, 2002
Standard Practice for Maintaining Constant Relative Humidity by Means of Aqueous Solutions
This practice describes one method for generating constant relative humidity (rh) environments in relatively small containers. This practice is applicable for obtaining constant relative humidities...
February 22, 1985
Standard Practice for Maintaining Constant Relative Humidity by Means of Aqueous Solutions
1. Scope 1.1 This practice describes two methods for generating constant relative humidity (rh) environments in relatively small containers. 1.2 This practice is applicable for obtaining constant...
January 1, 1985
Standard Practice for Maintaining Constant Relative Humidity by Means of Aqueous Solutions
A description is not available for this item.

References

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