Total Kjeldahl Nitrogen as N

1,1,1,3-Tetrachlorotridecane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 67095-50-5

4-Chlorophenol, 500mg

2,2',3,3',5,5'-Hexachlorobiphenyl ,100 µg/mL,isooctane,1mL,