HASP Glossary cont'd - est55030156

DOE-EM-STD-5503-94

Radiological Hazard: A source of actual or potential danger to a person(s) which occurs or

could occur because of exposure to radiation.

Recommended Exposure Limit: The NIOSH equivalent of OSHA PELs and ACGIH TLVs to

be used in the absence of PELs and TLVs.

Rescue Service: Offsite personnel designated to rescue employees from permit spaces, or other

hazardous areas when the onsite rescue team is not available.

Site: An area where physical work is being performed and where the potential of exposure to

contaminants exists, requiring the use of chemical protective clothing and/or radiological

protective clothing and/or respirators.

Site-Specific Training: Predefined training, unique to a particular site.

Spill: The uncontrolled release of a hazardous substance into the environment that onsite

personnel are capable of containing. Distinguished from a major spill.

Standard Entry Procedure: A procedure for entry into confined spaces which utilizes the

complete array of entry measures. It is characterized by use of trained personnel, atmospheric

testing before and during entry, use of proper protective equipment, and completion of the entry

permit.

Storage: The temporary placement of a hazardous material in a location which provides some

protection to personnel or the environment.

Support Zone: Uncontaminated area where workers are unlikely to be exposed to hazardous

substances or dangerous conditions.

Task: A well defined unit of work having an identifiable beginning and end with two or more

elements. A task is a series of jobs performed in support of a particular project.

Threshold Limit Value (TLV): An exposure limit established by the American Conference of

Governmental Industrial Hygienists (ACGIH) under which most people can work consistently for

8 hours a day, day after day, with no harmful effect.

Threshold Limit Value-Short-Term Exposure Limit (TLV-STEL): The concentration to

which workers can be exposed continuously, for a short period of time, without suffering from

irritation, chronic or irreversible tissue damage, or narcosis, provided that the daily TLV-TWA is

not exceeded.

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