| | A | B | C
| D | E | F
| G | H | I
| J | K | L | M | N | O
| P | Q | R | S | T | U
| V | W | X | Y | Z | N
| NAS |
National Academy of Sciences |
| NCR |
Nuclear Regulatory Commission |
| NDPES |
National Pollutant Discharge Elimination System |
| NESHAP |
National Emissions Standard for Hazardous Air Pollutants, a regulation
issued by the EPA |
| NFPA |
National Fire Protection Association publishes useful hazard ratings on
many chemicals |
| NIOSH |
National Institute for Occupational Safety & Health An arm of the US
Centers for Disease Control, it does research and suggests guidelines for exposure
control, but is not a regulatory agency. |
| NMR |
Nuclear Magnetic Resonance
Spectroscopy used to identify structures of organic compounds by seeing how they react to
magnetic fields of various frequencies |
| NOAA |
National Oceanic and Atmospheric Administration |
| NOx |
Oxides of nitrogen. Used where the particular oxide is unimportant or
where a mixture is being discussed. |
| NPR |
Notice of Proposed Rulemaking, one step in the formal process of issuing
regulations by US Agencies. |
| NRC |
Nuclear Regulatory Commission, the US Federal Regulatory Agency that deals
with radiation and radioactive materials. |
| NREP |
National Registry of Environmental Professionals, Glenview, IL, (708)
724-6631 |
| NRR |
Noise Reduction Rating, used as a laboratory-based indicator of the
effectiveness of hearing protectors |
| NTP |
National Toxicology Program |
O
| ORM |
Other Regulated Materials |
| OSHA |
Occupational Safety & Health Administration, a part of the US
Department of Labor, it regulates many job safety issues, including chemical handling and
storage; also Occupational Safety & Health Act, the US Federal legislation that
created OSHA (the Administration) and NIOSH. |
| OSHRC |
Occupational Safety and Health Review Commission, provides the ultimate
administrative review of challenges to OSHA citations. Its decisions may be appealed to
the US Federal Court system. |
| OTA |
Office of Technology Assessment, a staff arm of the US Congress |
P
| PCB |
Polychlorinated bipenyls (includes monochlorinated biphenyls under US
environmental regulations) |
| PEL |
Permissible Exposure Limit, the maximum occupational exposure permitted
under the OSHA regulations. |
| PMN |
Pre-Manufacture notification, required under TSCA |
| PPE |
Personal Protective Equipment
Includes goggles, gloves, shoes, coveralls, respirators, hard hats, etc. |
| ppm |
Parts of contaminant Per Million parts of air or other fluid. Usually
called simply "parts per million" - a unit of meaure of the concentration of one
material mixed or dissolved into another. |
| POTW |
Publicly-Owned Treatment Works |
R
| RCRA |
Resource Conservation and Recovery Act - US Federal legislation that
regulates materials and wastes currently being generated, treated, stored, disposed or
distributed. |
| REM |
Registered Environmental Manager. This credential is administered through
the National Registry of Environmental Professionals (NREP). To receive the REM
designation, REP requires you to submit copies of your college transcripts, listing of
specialty training, two professional references and a description of your professional
experience, and how it relates to environmental management. Then you can take a
comprehensive test in environmental management |
| RMP |
Risk Management Program The CAA requires major facilities to have a
written program to prevent releases to the environment in case of an accident |
| RQ |
Reportable Quantity- Facilities possessing RQs must report to the LEPC |
| RSI |
Repetitive Strain Injury |
| RTECS |
Registry of Toxic Effects of Chemical Substances, a registry maintained
and issued by NIOSH, listing all published studies in which a toxic effect was reported.
Study quality is not reviewed, and studies reporting no toxic effects are not included in
the registry. |
| RTK |
Right-to-Know
May refer to an individual employee's right to know about the nature and hazards of agents
used in the work place, and/or to the right of communities and their members to know about
materials used and wastes generated by workplaces situated within or adjacent to the
community. |
| A | B
| C | D | E
| F | G | H
| I | J | K | L | M | N
| O | P | Q | R | S | T
| U | V | W | X | Y | Z | Hazmat Home Page | |
