Technical Bulletin No. 0383: Field Investigation of Several Sulfur Gas Measurement Methods for Use in the Kraft Pulp Mill Chemical Recovery Area Workplace Environment

This technical bulletin describes the results of a field study carried out at a kraft mill to examine the performance of workplace measurement methods mainly in a chemical recovery area workplace where the products of black liquor and fuel combustion may be present. The major findings of both investigations carried out in the pulp manufacturing and chemical recovery area are summarized. Relative to the suitability of hydrogen sulfide measurement methods for use in the chemical recovery area, this second study showed that (a) all short-term detector tubes examined were acceptable, (b) long-term detector tubes produced by two manufacturers performed satisfactorily, (c) NIOSH Method S4 showed significant positive interference, and (d) some of the passive hydrogen sulfide monitoring devices have utility in screening workplace atmospheres.