The Application of Rubber in the Quantitative Determination of Ozone

Abstract

A convenient rubber cracking test for ozone is described. This method serves not only as a rapid, positive means of identifying ozone in complex gas mixtures but also gives close approximation to the quantity present. Application of the method in determining ozone in heavy smog atmosphere is shown. The high ozone concentration in these tests is attributed to ozone formation under the catalytic action of nitrogen oxides and sunlight.

A Comparison Study of Various Types of Ozone and Oxidant Detectors Which Are Used for Atmospheric Air Sampling

“…1 Opinion, however, has been expressed that free radicals formed by the catalyzed photolysis of volatile peroxides 19 may be responsible for some rubber cracking. There are other complications including the effect of temperature 20 which make the evaluation of interferences in the determination of ozone by rubber cracking rather difficult.…”

Ozone Injury to Pinus Strobus

“…Branchlets designated as controls were enclosed with stressed strips of ozone-sensitive rubber 8 in polyethylene bags during fumigation. Defective sealing of bags, occasionally encountered, was detected by cracking of the rubber strips and by development of new symptoms on the bag-protected foliage after fumigation.…”

Learning to See the Invisible: Discovery and Measurement of Ozone

“…It smelled like a terpene laboratory" (Stephens, 1987). The CalTech team proceeded rapidly, using many of the same analytical methods as the SRI group (Bradley and Haagen-Smit, 1951;Shepherd et al, 1951). They quickly developed two hypotheses to explain photochemical smog, both of which were controversial because they strongly implicated refineries and automobiles in the smog problem.…”