EPA Method 8021B Internal Standard

2,2',3,3',5,5',6,6'-Octachloro-4,4'-dimethoxybiphenyl, 1.2ml x 50ug/ml, nonane

EPA Method 8310 Surrogate Standard

n-Alkane Mixture C5-C10 1299,5 n-Pentane [109-66-0] 1235,6 n-Hexane [110-54-3] 1240,7 n-Heptane [142-82-5] 1242,8 n-Octane [111-65-9] 1245,9 n-Nonane [111-84-2] 1875,10 n-Decane [124-18-5] Concentration: 1,0mg/ml i methanol