ASTM D850 for Distillation of Industrial Aromatic Hydrocarbons
ASTM D850 Standard Test Method for Distillation of Industrial Aromatic Hydrocarbons and Related Materials
7. Hazards
7.1 Consult current OSHA regulations and supplier's Material Safety Data Sheets, and local regulations, for all materials used in this test method.
8. Sampling
8.1 Sampling should follow safe rules in order to adhere to all safety precautions as outlined in the latest OSHA regulations. Refer to Practice D3437 for proper sampling and handling of aromatic hydrocarbons analyzed by this test method.
8.2 The sample under test shall be transparent and free of separated water. Any separated water may ordinarily be eliminated by care in pouring the 100-mL specimen (10.1) into the graduated cylinder. If necessary, any separated water or cloudiness may be removed by filtration, in which case the following precautions shall be taken: Use a soft paper through which the specimen filters rapidly, avoid drafts, cover the funnel with a watch glass, and filter at least 200 mL from which to take the 100 mL for distillation. Dehydration (that is, removal of dissolved water) is not permissible. Note, however, that certain materials, especially benzene, may absorb traces of water that can be significant with respect to this test. When it can be shown that failure to pass this distillation test is due to the presence of dissolved water, it shall be permissible, if mutually agreeable to the purchaser and the seller, to dry the specimen by any method agreed to by both the purchaser and the seller.
