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  • Central Air Abatement System (CAAS) Scrubbing in Semiconductor Manufacturing (.pdf)
    A number of sources in the semiconductor manufacturing process produce diluted levels of acid gases, silanes, ammonia and some organics. The most common gases are hydrochloric acid (HCl), hydrofluoric acid (HF), hydrobromic acid (HBr), phosphoric acid (H3PO4), nitric acid (HNO3) and ammonia (NH3).
  • Industrial Hygiene Report: Control of Hydrochloric Acid Vapors in a Lab Setting
    TEST OBJECTIVE: A test was set up in accordance with NIOSH Test Method 7903 to test for airborne concentrations of inorganic acids, in this case HCl. The test objective was to determine the effectiveness of Sentry Air Systems' Acid Gas filter media in keeping operator ambient hydrochloric acid
  • The detection of Total Organic Chloride and/or Hydrogen Chloride
    conditioning the analyser can determine the organic chlorides or hydrochloric acid (HCL) content in gases. and volatile liquid hydrocarbon streams. This paper describes the use of, on-line or in lab analysers based on the dry colorimetric technique, in. performing these measurements. This technique
  • Gas Monitoring and Recording in a Chemical Plant
    chemical made by the company leaked to the atmosphere as fumes, while chlorine was used as a raw material at the plant. Therefore, it was necessary to monitor and record both hydrochloric acid gas levels (HCL) and chlorine (CH2) levels.
  • Monitoring and Recording Harmful Gas Detection in a Chemical Plant
    CAS DataLoggers recently supplied a chemical company with a combination gas detection and temperature recording system. For safety reasons, the plant needed a data logger to monitor hydrochloric acid gas (HCL) and chlorine (CH2) levels as well as temperature throughout the plant in 20 separate

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