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TO E RO E K SOP No.015,REV.1 ASSOC[ATFS,[NC, PACKAGING AND SHIPPING SAMPLES I PAGE 9 hazard during transport due to its form, quantity, and packaging. It must be a material for which exceptions are provided in the table of 49 CFR 172.101. The DGR lists consumer commodities as a Class 9 material. In most instances, the hazard of a material sampled is unknown because no laboratory testing has been conducted. A determination as to the suspected hazard of the sample must be made using knowledge of the site, field observations, field tests, and other available information. According to 40 CFR 261.4(d) and (e), samples transported to a laboratory for testing or treatability studies, including samples of hazardous wastes, are not hazardous wastes. FedEx will not accept a shipment of hazardous waste. 2.2 PACKAGING NONHAZARDOUS SAMPLES Nonhazardous samples, after being appropriately containerized, labeled, and tagged, should be packaged in the following manner. Note that these are general instructions; samplers should be aware of any client- specific requirements concerning the placement of custody seals or other packaging provisions. 1. Place the sample in a resealable plastic bag. 2. Place the bagged sample in a cooler and pack it to prevent breakage. 3. Prevent breakage of bottles during shipment by either wrapping the sample container in bubble wrap, or lining the cooler (bottom and sides) with a noncombustible material such as vermiculite. Vermiculite is especially recommended because it will absorb any free liquids inside the cooler. It is recommended that the cooler be lined with a large plastic garbage bag before samples, ice, and absorbent packing material are placed in the cooler. 4. Add a sufficient quantity of ice to the cooler to cool samples to 4 'C. Ice should be double bagged in resealable plastic bags to prevent the melted ice from leaking out. A temperature blank (a sample bottle filled with water) should be included with the cooler. 5. Seal the completed chain-of-custody forms in a plastic bag and tape the plastic bag to the inside of the cooler lid. 6. Tape any instructions for returning the cooler to the inside of the lid. 7. Close the lid of the cooler and tape it shut by wrapping strapping tape around both ends and hinges of the cooler at least once. Tape shut any drain plugs on the cooler.