SHW definition
Examples of SHW in a sentence
It pro- vides a rough rate constant for the chemical in SHW that is necessary for Phase 3 testing.
It has been demonstrated that after 7 days of winter sunlight exposure, SHW solu- tions photobleached with a nearly con- stant rate constant (Mill et al.
Parallel irradiation of SHW so- lutions allows evaluation of the extent of photobleaching and loss of sensi- tizing ability of the natural water.
Test chemical solutions in SHW and in pure water buffer are then irradiated in sunlight in parallel with actinometer solutions, all in tubes.
To implement the method, a test chemical is exposed to sunlight in round tubes containing SHW and tubes containing pure water for defined periods of time based on a screening test.
To correct for photobleaching of SHW and also solar irradiance vari- ations, tubes containing SHW and acti- nometer solutions are exposed simulta- neously.
The actinometer composition is adjusted according to the results of Phase 2 for each chem- ical, to equalize as much as possible photoreaction rate constants of chem- ical in SHW and actinometer.
To correct for photobleaching, tubes containing SHW are irradiated in action to the other tubes above.
In the case of SHW, it gives a ten-fold dilution of SHW stock solu- tion.
As such, an SHW test system has been designed that is buffered to maintain pH and is pre-aged in sunlight to produce, subsequently, a predictable bleaching behavior.