Transcription of UMEx 100 DSD-DNPH
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UMEx 100 DSD-DNPH
Page 1 of 32 T-1007-FV-01-0505-M Formaldehyde (Diffusive Samplers) Method no: 1007 Control no.: T-1007-FV-01-0505-M Target concentration: ppm ( mg/m3) OSHA PEL: ppm ( mg/m3) (TWA); 2 ppm ( mg/m3) (STEL) OSHA Action level: ppm ( mg/m3) (TWA) ACGIH TLV: ppm ( mg/m3) (ceiling) Procedure: Diffusive samples are collected by exposing either Assay Technology ChemDisk Aldehyde Monitor 571 (ChemDisk-AL), SKC UMEx 100 Passive Sampler (UMEx 100), or Supelco DSD-DNPH Diffusive Sampling Device ( DSD-DNPH ) to workplace air. Samples are extracted with acetonitrile and analyzed by LC using a UV detector. Recommended sampling time For UMEx 100, ChemDisk-AL, and DSD-DNPH : 240 min (TWA); 15 min (STEL) Reliable quantitation limit: RQL SEE* sampler (ppb) ( g/m3)(%) ChemDisk-AL UMEx 100 DSD-DNPH *For samples where sampling site atmospheric pressure and temperature are known.
Page 3 of 32 T-1007-FV-01-0505-M Sampling test atmospheres generated using formalin (formaldehyde/water solution stabilized with methyl alcohol) at …
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