Water Quality Photometers and Colorimeters
(151 companies)
...of uranium in drinking water. Hydrogen phosphate, dihydrogen phosphate. Radon. Airborne respiratory irritant; may be harmful to humans if ingested. Standards. Water quality colorimeters and photometers may be produced, tested, and used according to various...
Gas Sensors
(570 companies)
...carbon monoxide, chlorine, chlorine dioxide, diborane, dust, fluorine, germane, halocarbons or refrigerants, hydrocarbons, hydrogen, hydrogen chloride, hydrogen cyanide, hydrogen fluoride, hydrogen selenide, hydrogen sulfide, mercury vapor, nitrogen...
Chemical Process and Petrochemical Gases
(95 companies)
...compounds from fuel. Petrochemical gases include methane, ethane, propane, and butane. Process gases include single component gases, such as hydrogen or nitrogen, or multiple component gases, such as hydrogen sulfide. Chemical process and petrochemical...
pH Electrodes
(181 companies)
pH electrodes are analytical sensors for measuring potential of hydrogen (pH), the negative logarithm of the hydrogen ion activity in solution.
Time and Frequency Standards
(34 companies)
Time standards and frequency standards can include cesium or rubidium atomic clocks, quartz oscillators, hydrogen masers and other master clocks. Time reference sources are used in networks & telecommunications, observatories, utilities and navigation (GPS).
pH Instruments
(396 companies)
pH instruments are used to measure or monitor potential of hydrogen (pH) in a solution.
pH Transmitters
(46 companies)
pH transmitters provide electrical outputs that are proportional to potential of hydrogen (pH) inputs.
Laboratory and Calibration Gases
(67 companies)
...hydrogen sulfide and oxygen monitoring, are normally stable and degradation is slow. However, normal degradation of electrochemically-based toxic and oxygen sensors is accelerated by low humidity and high temperatures due to the chemical reactions...
Photoconductive Cells
(38 companies)
...intensity when illuminated. These devices consist of a thin single-crystal or polycrystalline film of compound semiconductor substances. The most commercially available are photoconductive cells, which are manufactured from cadmium sulfide (CdS), which...
Industrial Gases
(328 companies)
...soluble, corrosive gas used in the manufacture of hydrofluoric acid; as a reagent, catalyst, and fluorinating agent; and in the refining of uranium and the preparation of many fluorine compounds. Hydrogen Sulfide (H2Se) - a colorless, flammable, poisonous...
Pond and Lagoon Aerators
(165 companies)
Pond and lagoon aerators are devices that bring air into contact with water, often by spraying water through air or bubbling air through water.
Gas Generation Equipment
(335 companies)
...generation equipment provides one of seven commonly used gas types. These include: chlorine dioxide. hydrogen. humidity or water vapor. nitrogen. ozone. oxygen. zero air. Humidity generation equipment provides a reliable humidity source value...
Electronic and Semiconductor Gases
(40 companies)
...such as as hydrogen. Many halides --including silane, silicon tetrachloride, and silicon tetrafluoride --are employed as silicon precursors. Some specialty gases such as germane (GeH4) are also used to form and deposit silicon-germanium alloys...
Vapor Recovery Systems
(33 companies)
Vapor recovery systems are designed to recover vapors from gasoline or other fuels so that these gases do not escape into the atmosphere. They are used in the chemical process and petroleum industries to recover escaped vapors for either reuse or destruction (usually by combustion).
Organic Chemicals
(1,476 companies)
...that commonly make up these compounds are hydrogen, oxygen, nitrogen, sulfur, and chlorine. Organic chemicals can be either natural or synthetic. Most organic chemicals, being carbon based, are natural meaning they can be produced by plants or animals. Others...
