Pure Gases – Selected Air Quality Specifications

Trace Analytics, LLC specializes in the analysis of thousands of compressed air & gas samples each year. Many of our customers have established their own criteria by monitoring the performance of the system over a given time period, reviewing literature/specifications, evaluating equipment parameters, and determining company objectives. Whether you are establishing a management plan or testing to comply with a given specification, our knowledgeable staff will be glad to assist you.

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Selected Pure Gas Compressed Air Classifications are shown below. If the specification you need is not shown, please Contact Us. We have many more air & gas specifications in our database. If you need a custom specification, Contact Us with your requirements.

Pure Gases - Selected Air Quality Specifications

Air Quality Specification THC CO CH4 CO2 H2O DP, °F O2 N2 OIL ODOR Other
CGA G-4.3-2007 Type I Grade D Oxygen 40 N/A N/A N/A 50 -54.5 99.5 N/A 0 None N/A
CGA G-10.1-2008 Type I Grade B Nitrogen N/A 10 N/A N/A N/A N/A 0.1 99.0(N) N/A N/A N/A
Commercial Item Description, CID A-A-59503C, Nitrogen, Type I, Grade B 50 N/A N/A N/A 26 -64 0.5 99.5(N) N/A No Odor Particulate Matter Maximum Dimension, µm (M)
50
IEST-STD-CC1246D-2002 Levels 100 and A/100(I) N/A N/A N/A N/A N/A N/A N/A N/A 100 (M1) N/A No. Particles 5 µm Dia. and Larger No. Particles 15 µm Dia. and Larger Additional Particle Size Ranges Below
1780 264 N/A
MIL-PRF-27401F-2008 Nitrogen Grade A Type I (N1) 58.3 N/A N/A N/A 26.3 -63.5 0.5 ≥99.5 N/A N/A Impurities, ppmv (M3)
≤5,000
Navy A-A-59155-2008 Grade B Nitrogen 50 N/A N/A N/A 25 -64 0.5 99.5(N) N/A None Moisture Content, mg/L Particle Content, >50 µm Other
0.02 None N/A
USP Nitrogen 99 Percent-2007 N/A 10 N/A N/A N/A N/A ≤1.0 ≥99 N/A None Discernable N/A
USP Oxygen 93 Percent-2011 N/A 10 N/A 300 N/A N/A 90.0-96.0 N/A N/A N/A N/A
USP Oxygen 99 Percent-2004 N/A 10 N/A 300 N/A N/A 99.0-100.0 N/A N/A N/A N/A
THC = Total Gaseous Hydrocarbons, ppmv CO2 = Carbon Dioxide, ppmv O2 = Oxygen, volume % N2O = Nitrous Oxide, volume %
CO = Carbon Monoxide, ppmv H2O = Water, ppmv N2 = Nitrogen, volume % Odor = Odor as supplied by customer
CH4 = Methane, ppmv DP = Dew Point, °F at 0 psig Oil = Oil Mist & Particulate, mg/m3 HS = Halogenated Solvents, ppmv
(I) Particulate cleanliness level 100 from Table 1; NVR cleanliness level A/100 from Table 3, IEST-STD-CC1-1246D, Product Cleanliness Levels and Contamination Control Program,Copyright 2002 by IEST.
(M) A-A-59503C, 3.3: "The material shall contain no solid particles whose maximum dimension is greater than 50 micrometers (µm) for type I nitrogen."
(M1) 100 mg/m3 is numerically equivalent to the Table 3 A / 100 level of 10 µg / 0.1 L.
(M2) This specification for oxygen is taken from Military Specification MIL-PRF-27210H, 10/1/20099, and modified by Boeing Commercial Airplane Group due to method limitations as follows: there are no limits for acetylene, ethylene, nitrous oxide, halogenated compounds, nor other compounds. Compliance with MIL-PRF-27210H for those compounds is not determined. TVHC (excluding methane) is based on methane equivalents rather than ethane equivalents. Oxygen is determined to ± 0.5% absolute by comparison to calibration standards, then all determined non-Oxygen gases and vapors are subtracted from 100.00 % to arrive at the calculated value. Subtracted gases which are below the detection limit are subtracted as 0.00%. Gases which are not determined (including Helium and Hydrogen) will, if present, represent an error in the calculated value of Oxygen.
(M3) Sum, in ppmv, of water, hdrocarbons, oxygen, argon, carbon monoxide, and carbon dioxide. NOTE: Hydrogen ins not determined and not included in impurities.
(N) The pure gas concentration is determined to ± 0.3% absolute, then all other determined gases are subtracted from 100.00 % to arrive at the reported value. Gases present but not determined may cause an error in the reported value of the pure gas.
(N1) The pure gas concentration is determined to ± 0.3% absolute, then all other determined gases are subtracted from 100.00 % to arrive at the reported value. Gases present but not determined may cause an error in the reported value of the pure gas. Type I refers to gaseous nitrogen.
Air & Gas Specifications referenced above may be viewed and/or purchased from: CGA - Compressed Gas AssociationU.S. Navy Dive ManualU.S. Pharmacopeial Convention

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