NJ ATM 5 - Particulate Emissions

Method Overview

  • Isokinetic
  • Heated out of stack filter (M5).
  • "Condensable" particulate matter passes through a filter and condenses in dry impingers.

Target Compounds

  • Both Filterable and Condensable Particulate Matter are measured. The total of all fractions represents the Particulate Matter.

Performance Tips

  • Filterable Particulate Matter
    • Do not use silicone grease - it will be soluble in the final train rinse and can bias the organic CPM value high.
    • Run the train isokinetically or pseudo-isokinetically if combined with M201, M201A or OTM 27
  • Condensable Particulate Matter
    • CPM is collected in the Greenburg Smith impingers of the sampling train as described in this method.
    • The total of the aqueous and organic fractions represents the CPM.
    • IMPORTANT - ether is an extremely flammable solvent! It should only be worked with under a hood!
    • IMPORTANT - Many resin type DI systems do not produce water of a grade that meets the 0.001% criteria for blanks. Blank-test your water before testing. If purchasing H2O, DI/UF grade is recommended. The organic extract and the water are separately evaporated.


  • Acetone, ether, and chloroform must be shipped as a hazardous material. Please call for IATA codes if you need them.
  • Samples may be shipped at ambient temperatures.
  • It may prove more economical to keep acetone, ether or chloroform rinses separate, ship other samples normally, and the solvent rinses as hazardous.
  • Be sure to include a chain of custody for each shipping container.


  • A draft method - never officially promulgated.
  • Some "older" facilities may have had this test method written into their permits.


  • No, please contact us if you are interested!

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