Never stow chlorinated-cleaning solvents near heat sources or open flames. Do not allow them to come in contact with hot surfaces. Make sure stowage areas are well ventilated and monitored regularly by the gas-free engineer. Additionally, do not stow these solvents near incompatible materials. Incompatible materials include strong alkalies, such as sodium hydroxide; oxidizers, such as calcium hypochlorite and sodium nitrate; and powdered metals, such as aluminum. When handling chlorinated-cleaning solvents, wear the following personal protective equipment (PPE): Neoprene gloves 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  toluene,  xylene, some  alcohols,  acetone,  methyl  ethyl  ketone,  ethyl acetate,   dry-cleaning   solvent   (PD-680,   Type   II), kerosene,  petroleum,  ether,  turpentine,  morpholine, and  other  related  compounds.  These  compounds  are highly  flammable  and  moderately  to  highly  toxic. Some also cause corrosion. Inhalation of concentrated vapors may cause dizziness, nausea, or vomiting. Stow  organic-cleaning  solvents  in  a  flammable liquid   storeroom,   or   flammable   liquid   lockers, according  to  OPNAVINST 5100.19 (Series),  Chapter C23, Appendix C23-C. Keep the solvents away from 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    Coveralls (recommended) In  addition,  if  vapors  accumulate  over  100  parts per   million   (ppm),   wear   an   oxygen-breathing apparatus (OBA) and notify the gas-free engineer. DISPOSAL OF HAZARDOUS MATERIAL.— When   it   becomes   necessary   to   dispose   of   any hazardous material, it is important to consult with the command’s   hazardous   material   control   authority. Containers of unused, contaminated, toxic, corrosive, and  so  forth,  material  have  different  guidelines  for disposal.  Absorbents  used  in  cleaning,  applying,  or packing HAZMATS should be treated using the same precautions  followed  for  the  hazardous  material  they absorbed.  The  many  procedures  and  directives  that govern   the   disposal   of   hazardous   material   are constantly changing and being updated. As mentioned earlier,   supervisors   are   charged   with   following established  safety  procedures.  OPNAVINST 5100.19 (Series), gives further details on disposal of hazardous material. 6-10 Q9. When working with solvents, which of the following actions should you take? 1. Make  sure  the  space  in  which  you  are working   does   not   have   adequate ventilation 2. Remove protective clothing  if it gets  too hot 3. Leave spilled solvents on the deck 4. Check the labels on all containers of liquid Q10. Most cleaning compounds do NOT contain toxic substances. 1. True 2. False REVIEW QUESTIONS Q11. Absorbents used in cleaning, applying, or packing hazardous materials will be treated and disposed of using the same precautions followed for the material they absorbed. 1. True 2. False REVIEW QUESTION