THE USE OF DETECTORS AND TEST KITS IN INDUSTRIAL HYGIENE INVESTIGATIONS
AERONAUTICAL SYSTEMS DIV WRIGHT-PATTERSON AFB OH
Pagination or Media Count:
The streamlining of conventional air sampling equipment to facilitate sample collection and thereby aid industrial hygiene investigations has been accompanied by a noted increase in the output of detectors and test kits. Although detectors and test kits embrace a broad category of sampling devices, the basic instrument discussed here consists of two parts a the sampler, or mechanical device for drawing the air to be tested through the detecting or collecting medium and b the detecting or collecting medium. The principal types of samplers are 1 electrical pumps, 2 metal hand pumps, 3 gas aspirating devices, 4 rubber bulbs or bellows and 5 glass syringes. All of these devices are usually calibrated in advance and are intended to be used in a manner that will cause a known volume of air to pass through the detecting medium. The most widely used types of detecting or collecting mediums consist of 1 prepared solutions 2 special papers or filters impregnated with selected reagents in advance or at the sampling site and 3 solid granules such as silica gel, diatomaceous earth or alumina impregnated with selected reagents.
- Hygiene and Sanitation