2-Butanol, certified, 5ml

High Boiling Sulfur in Toluene for Diesel Fuel Analysis 1 50 ppm S in sulphur-free Toluene; unit: 1x5mL vials Benzo[b]naphtho[2,1-d]thiophene (0485,16) + Benzo[b]naphtho[2,3-d]thiophene (0484,16) (1:1)

EPA Method 537 Surrogate Primary Dilution Standard (SUR PDS), 1.2ml, methanol

Methyl 2-octynoate, 1ml