Standard is packaged in methylene chloride at a concentration of 5000 µg/mL in a 1 mL ampoule.

• Kerosene standards may exhibit lot-to-lot variation.

Each standard includes an ampoule breaker, deactivated amber screw-top vial, extra product label, Certificate of Analysis, and Material Safety Data Sheet (MSDS). Samples of kerosene were collected from three different sources. Equal volumes of each were blended to form a composite sample.