EPA Method 521 Nitrosamines

QC Standard 5

Methyl 9-cis-12-hydroxyoctadecenoate , 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 141-24-2

Custom mix of phenol mono-and di-ethoxylates 1833.17-K-IO Ethylene glycol mono(p-nonylphenyl) ether p-Nonylphenol EO 1832.19-K-IO Diethylene glycol mono(p-nonylphenyl) ether p-Nonylphenol 2EO 3689.16-K-IO 4-tert-Octylphenol EO 3753.18-K-IO 4-ter