critical humidity

critical humidity

[′krid·ə·kəl yü′mid·əd·ē]
(chemical engineering)
The humidity of a system's atmosphere above which a crystal of a water-soluble salt will always become damp (absorb moisture from the atmosphere) and below which it will always stay dry (release moisture to the atmosphere).
(metallurgy)
The atmospheric humidity above which the corrosion rate increases rapidly for a particular metal.
References in periodicals archive ?
By comparing Figures 5 and 6, one can see that critical humidity ratio values (i.
Critical humidity ratio lines are illustrated in Figure 8(a) for a RAMEE system with a [MgCl.
Figure 8(b) shows the critical humidity ratio lines of a RAMEE system with [MgCl.
Our booth features an operational demonstration of the VIASPACE laser-based humidity sensor, the VIASENSOR HS-1000, for hydrogen fuel cells that makes critical humidity measurements in real time.
A certain number of layers sufficient to start corrosion processes will be formed at a critical humidity level of about 60-70% RH at room temperature, depending on the substrate polarity and its surface energy.
In addition to a critical humidity film, a metallization with sensitivity to migration behavior is required.
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