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< GC Columns < Environmental Analysis Columns: Semivolatiles

Air Monitoring Isocyanates Singles



ASTM D5836 and OSHA 42 are test methods for determining 2,4-toluene diisocyanate (2,4-TDI) and 2,6-TDI in the workplace atmosphere. OSHA 47 is for 4,4'-methylenediphenyl isocyanate (4,4'-MDI) in indoor air, and NIOSH Method 5522 is an analysis for 2,4-TDI, 2,6-TDI, 4,4'-MDI, and 1,6-hexamethylene diisocyanate (1,6-HDI) in air. Restek offers the 1,-(2-pyridyl)piperzine (1-2pp) derivative.
  Description CAS # Conc. in Solvent/Volume qty. Cat.# Price     Wish
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  2,6-TDIP 195625-39-9 1,000µg/mL in dimethyl sulfoxide, 1mL/ampul ea.33000
  2,4-TDIP 72375-21-4 1,000µg/mL in dimethyl sulfoxide, 1mL/ampul ea.33001
  1,6-HDIP 72375-27-0 1,000µg/mL in dimethyl sulfoxide, 1mL/ampul ea.33002
  4,4'-MDIP 72375-24-7 1,000µg/mL in dimethyl sulfoxide, 1mL/ampul ea.33003
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DMSO = dimethyl sulfoxide

     
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