Precision and Recovery Solution, 1.2ml, nonane

17ß(H),21ß(H)-(22RS)-Bishomohopane , neat, Solvent-neat, Unit ca. 10µg , # of units-1, Cas.no. 54311-28-5

2,2',3,3',5,6,6'-Heptachlorobiphenyl,100 µg/mL,isooctane,1mL,

Solvent for ASTM D 664-01 1 L and 10x1L Toluene 50.0 % Isopropanol 49.5 % Water, ionfree 0.5 %