Chemical Exposure Applications | Environmental XPRT

APHA Color #3020

Measurement of APHA color either on-line or in a laboratory setting using a photometer. Background: APHA is sometimes referred to as the Platinum Cobalt (Pt/Co) or Hazen scale. Also referred to as a “yellowness index”, the APHA color scale is a common method of comparison of the intensity of yellow-tinted samples to assess the quality of liquids that are clear to yellowish in color. Originally developed to determine the purity of municipal water supplies, it is now used as a metric for purity in the water, chemical, oil, plastics, and pharmaceutical industries. APHA color quantifies the appearance of trace amounts of yellowness, which is a visual indicator of product degradation due to exposure to light or heat; the presence of impurities and negative effects of processing. As such APHA color is often used as a product release specification. APHA is a single number yellowness index. The units are based on a dilution of a 500ppm solution of PtCo.

By Guided Wave, Inc. based in Rancho Cordova, CALIFORNIA (USA).

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Air sampling & monitoring systems for biomedical, chemical & pharmaceutical industry

HI-Q Environmental Product Company provides air sampling instrumentation & systems for several niche applications in a number of disciplines in the broad area of `Life Sciences`. In the Biomedical, Chemical, & Pharmaceutical industries, HI-Q has marketed instrumentation for certain applications for many years. Our ambient, in-door breathing level air samplers, commonly known in the industry as `Goose-Neck` or `Giraffe` air samplers have been instrumental in analyzing workplace exposure. HI-Q has also developed accurate pre & post heap filtration stack sampling systems to aid laboratories in inventory control & atmospheric exposure monitoring for chemicals such as Radio Iodine.

By HI-Q Environmental Products Company based in San Diego, CALIFORNIA (USA).

Integrated real-time gas analysis solution for chemical weapon agents

The nation has stockpiled thousands of cylinders and canisters of toxic and deadly chemical weapon agents, including mustard gas (HD), sarin (GB), tabun (GA), and V-agents. Most of these CWAs are stored at DOD facilities around the country and many have been in storage for years and years. As a consequence, DOD requirements specify that the stockpiles have to be monitored regularly for leakages to prevent release to the environment and exposure to personnel.

By CIC Photonics, Inc. based in Albuquerque, NEW MEXICO (USA).

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Gas monitoring instruments and systems for flavoring agents

Manufacturing of powdered and liquid flavorings and fragrances involves production phases where flavoring chemicals may be released into the ambient air breathed by workers. Exposure control by gas analyzers in the production rooms and laboratories is necessary to ensure that the Time-Weighted Average (TWA) concentrations do not exceed the maximum Permissible Emission Limit (PEL) values.

By Gasmet Technologies Oy based in Helsinki, FINLAND.

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Air sampling & monitoring systems for occupational health & safety industry

HI-Q considers the responsibility for worker health and safety to be of paramount importance. This is a responsibility that requires good documentation of facts. Many studies are conducted to evaluate workplace health and safety conditions as they relate to workers exposure to radiation, chemicals, and biological hazards during the normal work day. HI-Qs wide line of air sampling equipment, systems and accessories are used in the monitoring then documentation of these workplaces.

By HI-Q Environmental Products Company based in San Diego, CALIFORNIA (USA).

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Gas monitoring instruments and systems for print factories

Typical modern printing processes utilize solvent-based dyes. The evaporation of the dye solvents into the ambient air during the printing process may expose the workers to various chemicals. Depending on the type of solvents in case, the solvents have different long term exposure limits, which should be obeyed. Component specific measurements are necessary to protect the workers from exposure while avoiding unnecessary interruptions to the printing process from false alarms.

By Gasmet Technologies Oy based in Helsinki, FINLAND.

Gas Detection Solutions for Hydrogen Fluoride (HF) Safety

Hydrogen Fluoride (HF) is a very useful chemical used in a variety of industries. However, HF is highly toxic with potential fatal consequences with exposure to humans, so facilities that make or use HF should exercise great care. Nevertheless, there is always the risk of leaks from process elements such as valves, pump seals and storage vessels. Tanker loading, transporting and unloading operations also provide opportunity for HF releases. Industrial processes that make or use HF typically have arrays of point sensors distributed throughout the unit. However, these sensors are maintenance intensive and have relatively slow response times. In addition, a point sensor will not detect an HF release unless it is located directly in the area of that release. Electrochemical HF sensors also respond to chlorine, ammonia, and sulfur dioxide, resulting in false alarms.

By Boreal Laser Inc. based in Edmonton, ALBERTA (CANADA).

Gas analysis & monitoring systems for medical gases monitoring

The measurement of occupational exposure to pollutants in the operating room is an essential tool for the detection of chemical, linked not only to the occurrence of infections and various diseases, but also to reduced alertness and performance of staff. To meet the above requirements, ETG proposes the use of ‘INFRARUN, thanks to the high sensitivity and stability and the very wide dynamic range, INFRARUN is the ideal tool to make a continuous sampling in the short and long-term gaseous contaminants in the field hospital, such as volatile anesthetics, aldehydes, fluorani, isofluorani,, VOC’s, etc.

By ETG Risorse e Tecnologia S.r.l. based in Montiglio, ITALY.

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