Chemical Hygiene Plan - Queensborough Community College ...
Chemical Hygiene Plan - Queensborough Community College ... Chemical Hygiene Plan - Queensborough Community College ...
22.4.4 Return of Cylinders Ensure that you have an S.O.P. in place for the management of cylinders and lecture bottles, especially in terms of their disposal when they become exhausted. Firstly, make sure that all cylinders and lecture bottles are labeled and included in your chemical inventory. Disposal of cylinders and lecture bottles is expensive, especially if the contents are unknown. Before you place an order for a cylinder or lecture bottle, determine if the manufacturer will take back the cylinder or lecture bottle when it becomes empty. If at all possible, only order from manufacturers who will accept cylinders or lecture bottles for return. 22.4.5 Hazards of Specific Gases 1) Inert Gases • Examples: Helium, Argon, Nitrogen • Can cause asphyxiation by displacing the air necessary for the support of life. • Cryogens are capable of causing freezing burns, frostbite, and destruction of tissue. 2) Cryogenic Liquids • Cryogenic liquids are extremely cold and their vapors can rapidly freeze human tissue. • Boiling and splashing will occur when the cryogen contacts warm objects. • Can cause common materials such as plastic and rubber to become brittle and fracture under stress. • Liquid to gas expansion ratio: one volume of liquid will vaporize and expand to about 700 times that volume, as a gas, and thus can build up tremendous pressures in a closed system. Therefore dispensing areas need to be well ventilated. Avoid storing cryogenics in cold rooms, environmental chambers, and other areas with poor ventilation. If necessary, install an oxygen monitor/oxygen deficiency alarm and/or toxic gas monitor before working these materials in confined areas. 3) Oxidizers • Examples: Oxygen, Chlorine • Oxidizers vigorously accelerate combustion; therefore keep away from all flammable and organic materials. Greasy and oily materials should never be stored around oxygen. Oil or grease should never be applied to fittings or connectors. 4) Flammable Gases • Examples: Methane, Propane, Hydrogen, Acetylene • Flammable gases present serious fire and explosion hazards. According to New York City Code, flammable gases shall not be stored in any laboratory unit “where there is not an on-going operation requiring their use. On-going operations shall allow storage of flammable gases sufficient to meet the operating requirements of the equipment in that laboratory unit plus and equal reserve.” “Operating requirements” is defined as the amount needed for one semester. 129
Therefore, when counting an “equal reserve”, a laboratory should never possess at any time more flammable gas than can be exhausted in two semesters. New York City Code also requires that flammable gases within laboratory settings be stored in accordance with the following table: Area of Laboratory in square feet** up to 500 sq. ft. per additional 100 sq. ft Maximum per Laboratory Unit Maximum Capacity 9.24 1.54 15.4 **Water container capacity • Do not store near open flames or other sources of ignition. • Cylinders containing Acetylene should never be stored on their side. • Flammable gases are easily ignited by heat, sparks, or flames, and may form explosive mixtures with air. Vapors from liquefied gas often are heavier than air, and may spread along ground and travel to a source of ignition and result in a flashback fire. 5) Corrosive Gases • Examples: Chlorine, Hydrogen Chloride, Ammonia • There can be an accelerated corrosion of materials in the presence of moisture. • Corrosive gases readily attack the skin, mucous membranes, and eyes. Some corrosive gases are also toxic. • Due to the corrosive nature of the gases, corrosive cylinders should only be kept on hand for 6 months (up to one year maximum). Only order the smallest size needed for your experiments. 6) Poison Gases • Examples: Arsine, Phosphine, Phosgene • Poison gases are extremely toxic and present a serious hazard to laboratory staff. • Poisonous gases require special ventilation systems and equipment and must only be used by properly trained experts. There are also special building code regulations that must be followed with regard to quantities kept on hand and storage. • Consult your EHSO before purchasing poisonous gases. 22.5 Battery Charging Lead acid batteries contain corrosive liquids and also generate Hydrogen gas during charging which poses an explosion hazard. The following guidelines should be followed for battery charging areas: • A “No smoking” sign should be posted. 130
- Page 79 and 80: • Record keeping requirements •
- Page 81 and 82: Prescription Safety Eyewear OSHA re
- Page 83 and 84: different glove types. Different ma
- Page 85 and 86: • Natural Rubber Latex*** - Resis
- Page 87 and 88: The use of all types of respiratory
- Page 89 and 90: your College’s Emergency Procedur
- Page 91 and 92: • Check all pressure, temperature
- Page 93 and 94: If you have been trained and it is
- Page 95 and 96: 4) Try to prevent spilled chemicals
- Page 97 and 98: their use. Colleges and departments
- Page 99 and 100: Once outside, notify emergency resp
- Page 101 and 102: 5) Keep flushing for at least 15 mi
- Page 103 and 104: 3. The New York City Rules and Regu
- Page 105 and 106: 6. Selection of Hazardous Waste Con
- Page 107 and 108: XV. PESTICIDES A pesticide is defin
- Page 109 and 110: 16.1 Institutional Biosafety Commit
- Page 111 and 112: the College’s IACUC must ensure t
- Page 113 and 114: • Materials derived from animals
- Page 115 and 116: the same regulations and laws; and
- Page 117 and 118: problems and compliance issues, and
- Page 119 and 120: from any given amperage, the table
- Page 121 and 122: extension cords, see the Consumer P
- Page 123 and 124: "reset" buttons. They are found on
- Page 125 and 126: properly replaced before use. Movin
- Page 127 and 128: 22.4.1 Handling Compressed Gas Cyli
- Page 129: materials for connections; toxic an
- Page 133 and 134: • If toxic, flammable, or otherwi
- Page 135 and 136: 22.9 Centrifuges Some general safet
- Page 137 and 138: significant thrust may be experienc
- Page 139 and 140: frozen to the underlying skin, cold
- Page 141 and 142: • Allow the system to cool and th
- Page 143 and 144: • Cover the tubing with cloth and
- Page 145 and 146: • Apparatus, equipment, or chemic
- Page 147 and 148: • Seat height—be sure lab chair
- Page 149 and 150: someone else in your department or
- Page 151 and 152: 23.3 Cylinders • Before moving to
- Page 153 and 154: EHS roles/responsibilities: • Pro
- Page 155 and 156: and that there are no dents or hole
- Page 157 and 158: • The contents of the Laboratory
- Page 159 and 160: Training Manuals and Booklets P.I.s
- Page 161 and 162: • Where airborne exposure monitor
- Page 163 and 164: than one year's employment must be
- Page 165 and 166: APPENDIX B: SITE MAP 164
- Page 167 and 168: APPENDIX D: OSHA TOXIC SUBSTANCES L
- Page 169 and 170: APPENDIX F: SAMPLE LAB INSPECTION F
- Page 171 and 172: APPENDIX G: CHEMICAL COMPATIBILITY
- Page 173 and 174: peroxide, Nitric acid, Sodium perox
- Page 175 and 176: Sodium peroxide Sulfides Sulfuric a
- Page 177 and 178: APPENDIX I: FDNY REGULATIONS GOVERN
- Page 179 and 180: 41 and the total quantity, excludin
Therefore, when counting an “equal reserve”, a laboratory should never possess at<br />
any time more flammable gas than can be exhausted in two semesters. New York<br />
City Code also requires that flammable gases within laboratory settings be stored<br />
in accordance with the following table:<br />
Area of Laboratory<br />
in square feet**<br />
up to 500 sq. ft. per additional<br />
100 sq. ft<br />
Maximum per<br />
Laboratory Unit<br />
Maximum Capacity 9.24 1.54 15.4<br />
**Water container capacity<br />
• Do not store near open flames or other sources of ignition.<br />
• Cylinders containing Acetylene should never be stored on their side.<br />
• Flammable gases are easily ignited by heat, sparks, or flames, and may form<br />
explosive mixtures with air. Vapors from liquefied gas often are heavier than air,<br />
and may spread along ground and travel to a source of ignition and result in a<br />
flashback fire.<br />
5) Corrosive Gases<br />
• Examples: Chlorine, Hydrogen Chloride, Ammonia<br />
• There can be an accelerated corrosion of materials in the presence of moisture.<br />
• Corrosive gases readily attack the skin, mucous membranes, and eyes. Some<br />
corrosive gases are also toxic.<br />
• Due to the corrosive nature of the gases, corrosive cylinders should only be kept<br />
on hand for 6 months (up to one year maximum). Only order the smallest size<br />
needed for your experiments.<br />
6) Poison Gases<br />
• Examples: Arsine, Phosphine, Phosgene<br />
• Poison gases are extremely toxic and present a serious hazard to laboratory staff.<br />
• Poisonous gases require special ventilation systems and equipment and must only<br />
be used by properly trained experts. There are also special building code<br />
regulations that must be followed with regard to quantities kept on hand and<br />
storage.<br />
• Consult your EHSO before purchasing poisonous gases.<br />
22.5 Battery Charging<br />
Lead acid batteries contain corrosive liquids and also generate Hydrogen gas during charging<br />
which poses an explosion hazard. The following guidelines should be followed for battery<br />
charging areas:<br />
• A “No smoking” sign should be posted.<br />
130
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