Guide to the safe handling of solvents in a bituminous ... - Aapaq.org

Leaking regulators, cylinder valves, hose, piping systems,apparatus or fittings shall not be used. Do not attempt to repair orfix cylinder valves, Cylinders shall not be used as rollers or supports, whether full orempty; Cylinders must not be placed where they might form part of anelectrical circuit; Never use a cylinder's contents for purposes other than thoseintended by the supplier; Never allow acetylene to come in contact with unalloyed copper,except in a blowpipe or torch; When flammable lines or other parts of equipment are beingpurged of air or gas, open lights or other ignition sources must notbe allowed near uncapped openings; All compressed gas cylinders must be legibly marked with theircontents; Cylinders shall not be stored on their sides, unless approved forthat use.7. Hazardous waste managementAll laboratory operations with chemicals result in the production of chemicalwastes. These wastes may pose potential harm, both short and long term,to human health or to the environment, unless the disposal is properlyhandled. There are now regulations and guidelines governing all areas ofwaste management from creation, transportation to disposing of hazardouswaste. The following guidelines are specifically given for laboratories to beable to manage hazardous waste.• Waste minimisation: In order to minimise the amount of hazardouswaste presented for disposal, it is important to follow these guidelines: Avoid overstocking: one of the main sources of laboratory waste issurplus stock - the result of over buying. Recent pricingarrangements with suppliers have greatly reduced the benefits ofpurchasing chemicals in large volumes. Also, there is little need tostore large quantities of chemicals, as orders are generallyshipped the day after an order is received; Do not accept donations of materials that you don’t plan to use.Many companies have traditionally unloaded unwanted reagents55