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Nitric Oxide (NO) Calibration Gas
12123
Nitric oxide is a colorless gas with the formula NO . It is one of the principal oxides of nitrogen. Nitric oxide is a free radical, i.e., it has an unpaired electron, which is sometimes denoted by a dot in its chemical formula (·N=O or ·NO). An important intermediate in chemical industry, nitric oxide forms in combustion systems and can be generated by lightning in thunderstorms. In mammals, including humans, nitric oxide is a signaling molecule in many physiological and pathological processes. Nitric oxide should not be confused with nitrous oxide (N 2 O), an anesthetic, or with nitrogen dioxide (NO 2 ), a brown gas and major air pollutant. 34L 58L 110L Cert. tol. Prod. tol. Stability (months) 10 ppm Nitric Oxide // Nitrogen Available Available Available +/- 10% +/- 20% 12 25 ppm Nitric Oxide // Nitrogen Available Available Available +/- 5% +/- 10% 12 50 ppm Nitric Oxide // Nitrogen Available Available Available +/- 5% +/- 10% 12 100 ppm Nitric Oxide // Nitrogen Available Available Available +/- 2% +/- 10% 12 500 ppm Nitric Oxide // Nitrogen Available Available Available +/- 2% +/- 10% 12 1000 ppm Nitric Oxide // Nitrogen Available Available Available +/- 2% +/- 5% 12 4000 ppm Nitric Oxide // Nitrogen Available Available Available +/- 2% +/- 5% 12
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Nitrogen Dioxide (NO2) Calibration Gas
12129
Nitrogen dioxide is the chemical compound with the formula NO 2 . It is one of several nitrogen oxides. NO 2 is an intermediate in the industrial synthesis of nitric acid, millions of tons of which are produced each year which is used primarily in the production of fertilizers. At higher temperatures it is a reddish-brown gas that has a characteristic sharp, biting odor and is a prominent air pollutant. Nitrogen dioxide is a paramagnetic, bent molecule with C 2v point group symmetry. 34L 58L 110L Cert. tol. Prod. tol. Stability (months) 5 ppm Nitrogen Dioxide // Air Available Available Available +/- 10% +/- 20% 6 5 ppm Nitrogen Dioxide // Nitrogen Available Available Available +/- 10% +/- 20% 6 10 ppm Nitrogen Dioxide // Air Available Available Available +/- 10% +/- 20% 6 10 ppm Nitrogen Dioxide // Nitrogen Available Available Available +/- 10% +/- 20% 6 20 ppm Nitrogen Dioxide // Air Available Available Available +/- 10% +/- 20% 6 25 ppm Nitrogen Dioxide // Air Available Available Available +/- 5% +/- 10% 6 100 ppm Nitrogen Dioxide // Air Available Available Available +/- 5% +/- 10% 6 100 ppm Nitrogen Dioxide // Nitrogen Available Available Available +/- 2% +/- 10% 6 500 ppm Nitrogen Dioxide // Nitrogen Available Available Available +/- 2% +/- 5% 6 1000 ppm Nitrogen Dioxide // Air Available Available Available +/- 2% +/- 5% 6
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Nitrous Oxide (N2O) Calibration Gas
12132
Nitrous oxide , commonly known as laughing gas or nitrous , is a chemical compound, an oxide of nitrogen with the formula N 2 O . At room temperature, it is a colourless non-flammable gas, with a slight metallic scent and taste. At elevated temperatures, nitrous oxide is a powerful oxidizer similar to molecular oxygen. It is soluble in water. Nitrous oxide has significant medical uses, especially in surgery and dentistry, for its anaesthetic and pain reducing effects. It is also used as an oxidiser in rocket propellants, and in motor racing to increase the power output of engines. Nitrous oxide occurs in small amounts in the atmosphere, but recently has been found to be a major scavenger of stratospheric ozone, with an impact comparable to that of CFCs. It is estimated that 30% of the N 2 O in the atmosphere is the result of human activity, chiefly agriculture. Being the third most important long-lived greenhouse gas, nitrous oxide substantially contributes to global warming. 34L 58L 110L Cert. tol. Prod. tol. Stability (months) 100 ppm Nitrous Oxide // Nitrogen Available Available Available +/- 2% +/- 10% 60 200 ppm Nitrous Oxide // Nitrogen Available Available Available +/- 2% +/- 5% 60 1 % Nitrous Oxide // Nitrogen Available Available Available +/- 2% +/- 5% 60
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Oxygen (O2) Calibration Gas
12135
Oxygen is the chemical element with the symbol O and atomic number 8. It is a member of the chalcogen group in the periodic table, a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements as well as with other compounds. By mass, oxygen is the third-most abundant element in the universe, after hydrogen and helium. At standard temperature and pressure, two atoms of the element bind to form dioxygen, a colorless and odorless diatomic gas with the formula O 2 . Diatomic oxygen gas constitutes 20.8% of the Earth™s atmosphere. As compounds including oxides, the element makes up almost half of the Earth™s crust. Most of the mass of living organisms is oxygen as a component of water, the major constituent of lifeforms. Oxygen is continuously replenished in Earth™s atmosphere by photosynthesis, which uses the energy of sunlight to produce oxygen from water and carbon dioxide. Oxygen is too chemically reactive to remain a free element in air without being continuously replenished by the photosynthetic action of living organisms. Common uses of oxygen include production of steel, plastics and textiles, brazing, welding and cutting of steels and other metals, rocket propellant, oxygen therapy, and life support systems in aircraft, submarines, spaceflight and diving. 34L 58L 110L Cert. tol. Prod. tol. Stability (months) 100 ppm Oxygen // Nitrogen Unavailable Available Available +/- 2% +/- 10% 60 0.4 % Oxygen // Nitrogen Available Available Available +/- 2% +/- 5% 60 1 % Oxygen // Nitrogen Available Available Available +/- 2% +/- 5% 60 2 % Oxygen // Nitrogen Available Available Available +/- 2% +/- 5% 60 4 % Oxygen // Nitrogen Available Available Available +/- 2% +/- 5% 60 5 % Oxygen // Nitrogen Available Available Available +/- 2% +/- 5% 60 8 % Oxygen // Nitrogen Available Available Available +/- 2% +/- 5% 60 10 % Oxygen // Nitrogen Available Available Available +/- 2% +/- 5% 60 15 % Oxygen // Nitrogen Available Available Available +/- 2% +/- 5% 60 18 % Oxygen // Nitrogen Available Available Available +/- 2% +/- 5% 60 18.5 % Oxygen // Nitrogen Available Available Available +/- 2% +/- 5% 60 20.9 % Oxygen // Nitrogen Available Available Available +/- 2% +/- 5% 60 23.5 % Oxygen // Nitrogen Available Available Available +/- 2% +/- 5% 60
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Pentane (C5H12) Calibration Gas
12137
Pentane is an organic compound with the formula C 5 H 12 ”that is, an alkane with five carbon atoms. The term may refer to any of three structural isomers, or to a mixture of them: in the IUPAC nomenclature, however, pentane means exclusively the n -pentane isomer; the other two are called isopentane (methylbutane) and neopentane (dimethylpropane). Cyclopentane is not an isomer of pentane because it has only 10 hydrogen atoms where pentane has 12. Pentanes are components of some fuels and are employed as specialty solvents in the laboratory. Their properties are very similar to those of butanes and hexanes. 34L 58L 110L Cert. tol. Prod. tol. Stability (months) 0.7 % Pentane // Air Available Available Available +/- 2% +/- 5% 60
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Phosphine (PH3) Calibration Gas
12140
Phosphine is the compound with the chemical formula PH 3 . It is a colorless, flammable, toxic gas and is classed as a pnictogen hydride. Pure phosphine is odorless, but technical grade samples have a highly unpleasant odor like garlic or rotting fish, due to the presence of substituted phosphine and diphosphane (P 2 H 4 ). With traces of P 2 H 4 present, PH 3 is spontaneously flammable in air, burning with a luminous flame. Phosphines are also a group of organophosphorus compounds with the formula R 3 P (R = organic derivative). Organophosphines are important in catalysts where they complex to various metal ions; complexes derived from a chiral phosphine can catalyze reactions to give chiral, enantioenriched products. 34L 58L 110L Cert. tol. Prod. tol. Stability (months) 0.5 ppm Phosphine // Nitrogen Available Available Available +/- 10% +/- 20% 12 5 ppm Phosphine // Nitrogen Available Available Available +/- 10% +/- 20% 12 10 ppm Phosphine // Nitrogen Available Available Available +/- 10% +/- 20% 12
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Propane (C3H8) Calibration Gas
12143
Propane is a three-carbon alkane with the molecular formula C 3 H 8 . It is a gas at standard temperature and pressure, but compressible to a transportable liquid. A by-product of natural gas processing and petroleum refining, it is commonly used as a fuel. Propane is one of a group of liquefied petroleum gases (LP gases). The others include butane, propylene, butadiene, butylene, isobutylene, and mixtures thereof. Propane gas has become a popular choice for barbecues and portable stoves because its low boiling point makes it vaporize as soon as it is released from its pressurized container. Propane powers buses, forklifts, taxis, outboard boat motors, and ice resurfacing machines and is used for heat and cooking in recreational vehicles and campers. Propane is also used in some locomotive diesel engines to improve combustion. Propane is a simple asphyxiant. Unlike natural gas, propane is denser than air. It may accumulate in low spaces and near the floor. Propane has low toxicity since it is not readily absorbed and is not biologically active. 34L 58L 110L Cert. tol. Prod. tol. Stability (months) 0.1 % Propane // Air Available Available Available +/- 2% +/- 5% 60 0.5 % Propane // Air Available Available Available +/- 2% +/- 5% 60 0.68 % Propane // Air Available Available Available +/- 2% +/- 5% 60 0.85 % Propane // Air Available Available Available +/- 2% +/- 5% 60 0.9 % Propane // Air Available Available Available +/- 2% +/- 5% 60 1 % Propane // Air Available Available Available +/- 2% +/- 5% 60 1.1 % Propane // Air Available Available Available +/- 2% +/- 5% 60 50 % Propane // Nitrogen Available Available Available +/- 2% +/- 5% 60 100 % Propane (2.5) Available Available Unavailable N/A N/A 60
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Propylene (C3H6) Calibration Gas
12146
Propene , also known as propylene or methyl ethylene , is an unsaturated organic compound having the chemical formula . It has one double bond, and is the second simplest member of the alkene class of hydrocarbons. It is a colorless gas with a faint petroleum-like odor. Propene is a byproduct of oil refining and natural gas processing. During oil refining, ethylene, propene, and other compounds are produced as a result of cracking larger hydrocarbons. A major source of propene is naphtha cracking intended to produce ethylene, but it also results from refinery cracking producing other products. Propene can be separated by fractional distillation from hydrocarbon mixtures obtained from cracking and other refining processes; refinery-grade propene is about 50 to 70%. 34L 58L 110L Cert. tol. Prod. tol. Stability (months) 1 % Propylene // Air Available Available Available +/- 2% +/- 5% 60
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Refrigerant Calibration Gases
12162
A refrigerant is a substance or mixture, usually a fluid, used in a heat pump and refrigeration cycle. In most cycles it undergoes phase transitions from a liquid to a gas and back again. Many working fluids have been used for such purposes. Fluorocarbons, especially chlorofluorocarbons, became commonplace in the 20th century, but they are being phased out because of their ozone depletion effects. Other common refrigerants used in various applications are ammonia, sulfur dioxide, and non-halogenated hydrocarbons such as propane. Refrigerant Calibration Gases 34L 58L 110L Cert. tol. Prod. tol. Stability (months) 1000 ppm Refrigerant R12 // Air Available Available Available +/- 2% +/- 5% 60 1000 ppm Refrigerant R123 // Air Available Available Available +/- 2% +/- 5% 60 1000 ppm Refrigerant R1234YF // Air Available Available Available +/- 2% +/- 5% 60 1000 ppm Refrigerant R1234ZE // Air Available Available Available +/- 2% +/- 5% 60 1000 ppm Refrigerant R125 // Air Available Available Available +/- 2% +/- 5% 60 500 ppm Refrigerant R134A // Air Available Available Available +/- 2% +/- 5% 60 1000 ppm Refrigerant R134A // Air Available Available Available +/- 2% +/- 5% 60 2000 ppm Refrigerant R134A // Air Available Available Available +/- 2% +/- 5% 60 1000 ppm Refrigerant R14 // Air Available Available Available +/- 2% +/- 5% 60 1000 ppm Refrigerant R143A // Air Available Available Available +/- 2% +/- 5% 60 100 ppm Refrigerant R22 // Air Available Available Available +/- 2% +/- 10% 60 1000 ppm Refrigerant R22 // Air Available Available Available +/- 2% +/- 5% 60 2000 ppm Refrigerant R22 // Air Available Available Available +/- 2% +/- 5% 60 1000 ppm Refrigerant R227EA // Air Available Available Available +/- 2% +/- 5% 60 1000 ppm Refrigerant R23 // Air Available Available Available +/- 2% +/- 5% 60 1000 ppm Refrigerant R32 // Air Available Available Available +/- 2% +/- 5% 60 500 ppm Refrigerant R404A // Air Available Available Available +/- 2% +/- 5% 60 1000 ppm Refrigerant R404A // Air Available Available Available +/- 2% +/- 5% 60 2000 ppm Refrigerant R404A // Air Available Available Available +/- 2% +/- 5% 60 1000 ppm Refrigerant R407A // Air Available Available Available +/- 2% +/- 5% 60 1000 ppm Refrigerant R407C // Air Available Available Available +/- 2% +/- 5% 60 1000 ppm Refrigerant R407F // Air Available Available Available +/- 2% +/- 5% 60 1000 ppm Refrigerant R410A // Air Available Available Available +/- 2% +/- 5% 60 3000 ppm Refrigerant R410A // Air Available Available Available +/- 2% +/- 5% 60 1000 ppm Refrigerant R422A// Air Available Available Available +/- 2% +/- 5% 60 1000 ppm Refrigerant R422D // Air Available Available Available +/- 2% +/- 5% 60 1000 ppm Refrigerant R448A // Air Available Available Available +/- 2% +/- 5% 60 1000 ppm Refrigerant R449A // Air Available Available Available +/- 2% +/- 5% 60 1000 ppm Refrigerant R500 // Air Available Available Available +/- 2% +/- 5% 60 1000 ppm Refrigerant R507 // Air Available Available Available +/- 2% +/- 5% 60 2000 ppm Refrigerant R507 // Air Available Available Available +/- 2% +/- 5% 60
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