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Document ID (ISN)45297
CIS number 86-99
ISSN - Serial title Gigiena truda i professional'nye zabolevanija
Year 1984
Convention or series no.
Author(s) Guščin V.I.
Title Electrical conductometric gas analyser
Original title Ėlektrokonduktometričeskij gazoanalizator [in Russian]
Bibliographic information Oct. 1984, No.10, p.57-59. Illus.
Abstract A new gas analyser for continuous automatic monitoring of water-soluble toxic contaminants (ammonia, hydrogen sulfide, etc.) in the range of their maximum allowable concentrations was devised. The apparatus consists of 3 parts: electrochemical and electrometric units and an aspiration device. Gas concentrations are measured by comparison of the electrical resistance of absorption liquid in conductometric cells before and after absorption of the gas. The absorption liquid is 0.01% hydrochloric acid. Concentrations of ammonia from 0 to 100mg/m3 can be measured with 0.5% precision and at the sensivity limit of 0.1%. Determination of ammonia requires that 0.1-0.15L/min of air be passed through the electrometric chamber of the apparatus. A diagram of the apparatus is given.
Descriptors (primary) hydrogen sulfide; ammonia; electrical conductivity analysis; determination in air; sampling and analysis
Descriptors (secondary) toxic gases; description of equipment
Document type D - Periodical articles
Subject(s) Toxic and dangerous substances
Broad subject area(s)
Browse category(ies) Inorganic sulfur compounds
Inorganic substances