Safety goggles that will protect against splashes, or a face shield A chemical cartridge respirator for protection against small amounts of organic vapors or for protection for a short duration; or an air-line respirator (or some other type of supplied-air respirator) if use is extensive or in a confined space Coveralls Make sure work areas in which you use chlorinated cleaning solvents have proper ventilation. For enclosed spaces, an air change every 3 minutes is recommended. Consult  the  gas  free  engineer  to  determine  if  the ventilation is adequate. Organic Cleaning Solvents Organic cleaning solvents include the following: Toluene Xylene Some alcohols Acetone Methyl ethyl ketone Ethyl acetate Dry-cleaning solvent Kerosene Petroleum Ether Turpentine Morpholine and other related compounds These compounds are highly flammable and highly to moderately toxic. Some are also corrosive. Inhalation of concentrated vapors may cause dizziness, nausea, or vomiting. Organic  cleaning  solvents  should  be  stowed  as follows: Stow organic cleaning solvents in a flammable liquid storeroom, ready service storeroom, or a flammable locker. Keep  them  away  heat,  open  flames,  or spark-producing devices. Stow them away from oxidizers, such as calcium hypochlorite,  sodium  nitrate,  and  hydrogen peroxide. When handling organic cleaning solvents, wear the following PPE: Neoprene gloves Safety splash goggles Protective coveralls (recommended) In addition, if vapors accumulate over 100 parts per million (ppm), wear an OBA and notify the gas free engineer. Fluorocarbon Refrigerants and Solvents Fluorocarbon  refrigerants  and  fluorocarbon solvents, such as trichlorotrifluoroethane (Freon 113, Freon TF, Genetron 113, R-113), are commonly found aboard ship. They are used in food storage compart- ments and air-conditioned spaces and as solvents in engineering spaces. F l u o r o c a r b o n  va p o r s  h ave  t h e  f o l l ow i n g characteristics: They are colorless and almost odorless. They  cannot  be  detected  without  special instruments. They  are  nonflammable  and  nonexplosive; however, exposure to flames or hot surfaces will cause these compounds to generate hydrogen c h l o r i d e ,   hy d r o g e n   f l u o r i d e ,   a n d   o t h e r poisonous gases. They  aren’t  irritating,  but  contact  may  cause frostbite. Operations  involving  trichlorotrifluoroethane  (Freon 113) are considered hazardous. An industrial hygienist or a gas free engineer must evaluate and approve these operations to ensure the work process meets safety requirements. 18-9 Student Notes: