Safety Definitions 1

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CONDUCTIVE HEARING LOSS

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TYPE OF HEARING LOSS DUE TO ANY DISORDER IN THE MIDDLE OR EXTERNAL HEAR THAT PREVENTS SOUND FROM REACHING THE INNER EAR (NOT CAUSED BY NOISE EXPOSURE)

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ACCIDENT PREVENTION

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THE APPLICATION OF COUNTERMEASURES DESIGNED TO REDUCE ACCIDENTS

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COMBUSTIBLE LIQUIDS

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LIQUIDS HAVING A FLASH POINT AT OR ABOVE 37.8 C (100 F), AND BELOW 93.3 C (200 F).

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INTERLOCKED BARRIER GUARD

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AN ENCLOSURE ATTACHED TO THE MACHINERY OR EQUIPMENT FRAME AND INTERLOCKED WITH THE POWER SWITCH SO THAT THE OPERATING CYCLE CANNOT BE STARTED UNLESS THE GUARD IS PROPERLY POSITIONED

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CEILING LIMIT

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(C) AN AIRBORNE CONCENTRATION OF A TOXIC SUBSTANCE IN THE WORK ENVIRONMENT THAT SHOULD NEVER BE EXCEEDED (FROM ACGIH)

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ACOUSTICS

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CONTAINING, PRODUCING, ARISING FROM ACTUATED BY, RELATED TO, OR ASSOCIATED WITH SOUND.

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CAUSTIC

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SOMETHING THAT STRONGLY IRRITATES, BURNS, CORRODES, OR DESTROYS LIVING TISSUE

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ANTHROPOMETRY

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THE SCIENCE OF MEASURING THE HUMAN BODY FOR DIFFERENCES IN CHARACTERISTICS

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COMPRESSED GASE CYLINDER

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A CYLINDER CONTAINING VAPOR OR GAS UNDER HIGHER THAT ATMOSPHERIC PRESSURE

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ACTION LEVEL

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THE LEVEL OF TOXICANT TAHT REQUIRES MEDICAL SURVEILANCE (USUALLY ABOUT 1/2 OF THE PEL)

TERM BY U.S. DOL OSHA AND NIOSH

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COMBUSTIBLE

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ABLE TO CATCH FIRE AND BURN

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ANNEAL

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HEAT TREATMENT WITH SUBSEQUENT COOLING FOR DRAWING THE TEMPER OF METALS (TO SOFTEN THEM - TO MAKE THEM LESS BRITTLE)

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ACCIDENT CAUSES

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HAZARDS AND THOSE FACTORS THAT, INDIVIDUALLY OR IN COMBINATION, DIRECTLY CAUSE ACCIDENTS OR ACCIDENT POTENTIAL

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ADJUSTIBLE BARRIER GUARD

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AN ENCLOSURE ATTACHED TO THE FRAME OF THE MACHINERY OR EQUIPMENT WITH FRONT AND SIDE SECTIONS THAT CAN BE ADJUSTED

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AGENT

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THE PRINCIPLE OBJECT SUCH AS A TOOL, MACHINE, OR EQUIPMENT INVOLVED IN THE ACCIDENT (THE OBJECT INFLICTING INJURY OR DAMAGE)

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AUDIOGRAM

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A RECORD OF HEARING MEASURED AT DIFFERENT FREQUENCIES (500 TO 6,000 Hz

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ABRASIVE BLASTING

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A PROCESS FOR CLEANING SURFACES BY MEANS OF HIGH PRESSURE AIR OR WATER WITH SAND, ALUMINA, NONFREE SILICA, OR ORGANIC MATERIALS

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ACUTE EFFECT

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AN ADVERSE EFFECT ON A HUMAN OR ANIMAL BODY WITH SEVERAL SYMPTOMS DEVELOPING RAPIDLY AND COMING QUICKLY TO A CRISIS

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ANEMOMETER

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A DEVICE FOR MEASURING AIR VELOCITY

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CUBIC CENTIMETER

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c.c. equal to one mililiter (ml) OR APPROXIMATELY 20 DROPS - 16.4cc in one cubic inch

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AIR CLEANER

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A DEVICE DESIGNED TO REMOVE IMPURITIES FROM THE AIR

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AURAL INSERT

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EARPLUGS/INSERTS TO REDUCE THE NOISE LEVELS

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ACUTE TOXICITY

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THE ACUTE ADVERSE EFFECTS RESULTING FROM A SINGLE DOSE OF OR EXPOSURE TO A SUBSTANCE

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FIXED BARRIER GUARD

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A POINT OF OPERATION ENCLOSURE ATTACHED TO THE MACHINE OR EQUIPMENT

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ADSORPTION

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THE CONDENSATION OF GASES, LIQUIDS, OR DISSOLVED SUBSTANCES ON THE SURFACES OF SOLIDS.4`

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GATE OR MOVABLE BARRIER GUARD

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DEVICE TO ENCLOSE THE POINT OF OPERATION COMPLETELY BEFORE THE CLUTCH CAN BE ENGAGED

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ABSORBENT

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A SUBSTANCE THAT TAKES IN (ABSORBS) OTHER MATERIAL (AS IN A LIQUID BEING TAKEN IN

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BENIGN

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NOT MALIGNANT

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ULTRASONIC RANGE

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ABOVE 20,000 HZ

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FISSION

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THE ATOMIC ENERGY RELEASED WITH A NEUTRON SPLITS AN ATOMS NUCLEUS INTO SMALLER PIECES

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BASE

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(ALKALI) TURNS LITMUS PAPER BLUE - REACTS WITH AND ACID TO FORM A SALT

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ANTHROPOMETRIC EVALUATION

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STUDY OF HUMAN BODY SIZES AND MODES OF ACTION IN ORDER TO DESIGN BETTER TOOLS AND MACHINES TO HUMAN CAPABILITIES

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ALPHA PARTICLE

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(2 NEUTRON + 2 PROTONS (POS CHARGE))SMALL ELECTICALLY CHARGED PARTICLE W/ HIGH VELOCITY THROWN OFF BY MANY RADIOACTIVE MATERIALS

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SUBSONIC

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BELOW 20 HZ

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AMPERE

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STANDARD UNIT FOR MEASURING STRENGTH OF AN ELECTRIC CURRENT

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AMBIENT NOISE

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THE ALL ENCOMPASSING NOISE ASSOCIATED WITH A GIVEN ENVIRONMENT, BEING USUALLY A COMPOSITE OF SOUNDS FROM MANY SOURCES

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BULK DENSITY

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MASS OF POWDERED OR GRANULATED SOLID MATERIAL PER UNIT OF VOLUME

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ATMOSPHERIC PRESSURE

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THE PRESSURE EXERTED IN ALL DIRECTIONS BY THE ATMOSPHERE - AT SEA LEVEL, MEAN ATMOSPHERIC PRESSURE IS 29.92 INCHES OF Hg, 14.7 psi, or 407 inches of w.g.

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BLACK LIGHT

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ULTRAVIOLET (UV) LIGHT RADIATION BETWEEN 3,000 AND 4,000 ANGSTROMS (0.3 TO 0.4 MICROMETERS).

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ACCIDENT RATE

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ACCIDENT EXPERIENCE IN RELATION TO A BASE UNIT OF MEASURE (e.g. number of accidents per manhours; man days of work; miles traveled; 1000 sm

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ACCIDENT

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AN UNPLANNED EVENT INTERRUPTING THE ACTIVITY IN PROCESS

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BIOHAZARD

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A BIOLOGICAL HAZARD - ORGANISIMS THAT PRESENT A RISK TO HUMANS

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FUSION

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WHEN TWO NUCLEI ARE JOINED TOGETHER UNDER MILLIONS OF DEGREES OF HEAT

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AUDIBLE RANGE

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20 - 20,000 HZ

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ALUMINOSIS

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DISEASE CAUSED BY EXPOSURE TO ALUMINUM

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BACKGROUND NOISE

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NOISE COMING FROM SOURCES OTHER THAN THE PARTICULAR NOISE SOURCE BEING MONITORED

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CAPTURE VELOCITY

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AIR VELOCITY AT ANY POINT IN FRONT OF THE EXHAUST HOOD NECESSARY TO OVERCOME OPPOSING AIR CURRENTS AND TO CAPTURE THE CONTAMINATED AIR BY CAUSING IT TO FLOW INTO THE EXHAUST HOOD

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ALLOY

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MIXTURE OF METALS

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AIR

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THE MIXTURE OF GASES THAT SURROUND THE EARTH - MADE UP OF 78.08% NITOGEN, 20.95% OXYGEN, 0.03% CARBON DIOXIDE AND 0.93% argon

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CARPAL TUNNEL SYNDROME

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AN AFFLICTION CAUSED BY COMPRESSION OF THE MEDIAN NERVE IN THE CARPAL TUNNEL