1.1 This practice covers procedures for sampling and handling naphthalene, maleic anhydride, and phthalic anhydride in various solid forms, and as liquids at elevated temperatures in a safe manner that represents and preserves quality.1.2 Any person sampling or handling these products should consult the applicable Material Safety Data Sheets (MSDS) for specific first aid instructions and information on the proper equipment to have available for use in the event of personal contact or e