HEAT STRESS INFORMATION

SRS HEAT STRESS INDEX CARD (OSR 4-703, dated 2-23-17)

CATEGORY *WBGT INDEX RANGE(°F) **RECMD WATER INTAKE ***ESTIMATE OF ACTIVITY VERSUS RECOVERY UNACCLIMATIZED ADDITIONAL CONTROLS
I. 77-83 0.5 qt/hr 100% Enforce water/fluid intake.
II. 83-84 0.5 qt/hr 75% Enforce water intake; Use buddy system.
III. 84-86 1 qt/hr 50% Enforce water intake; Use buddy system; No strenuous work.
IV. 86-88 1.5 qt/hr 25% Enforce water intake; Use buddy system; Light work only.
V. 88 or above Heat stress guidelines exceeded. IH consultation and additional controls required for work under these conditions.
* Add the WBGT Clothing Adjustment Factor from the appropriate clothing ensemble listed below to the observed or predicted WBGT. Then compare the resulting adjusted WBGT to the index ranges.

** Workers should not be required to consume these specific quantities, but they should be available to the workers. Extended shift workers should hydrate as needed, at any time.


COMMON SENSE PRECAUTIONS FOR WORK OR PLAY
COMMON HEAT RELATED ILLNESSES (from 4Q, Proc. 502 dated 2-23-17)
DISORDER CLINICAL FEATURES TREATMENT
Heat Stroke Hot dry skin (red or blue), irritability, confusion, shivering, convulsions, collapse. MEDICAL EMERGENCY. Aggressively cool victim. Use ice bath or pour ice and water on victim, if available. Call medical immediately.
Heat Syncope Gray-out or black out, Fainting in heat. (no signs or symptoms of heat stroke) Promptly move to cooler area. Give water or electrolyte drink if conscious.
Heat Exhaustion Fatigue, nausea, headache, giddiness, clammy, moist skin, pale complexion. Promptly move to cooler area. If victim is conscious give water or electrolyte drink.
Heat Cramps Painful spasms of muscles used during work (arms, legs or abdominal). Rest in a cool area. Give electrolyte drink if available.
Heat Rash Wash area; then thoroughly dry. Wear loose clothing.


WIND CHILL INFORMATION




Confer with Industrial Hygiene for inerpretation of the table above and appropriate protective controls. Obtain current wind chill from the SRNL Atmospheric Technologies Center web page under 'Current Conditions'.

COLD DISORDER
Signs & Symptoms
FIRST AID
Burning searing pain in extremities (fingers, toes, ears) Cover area with gloves, hat liners, or ear muffs. Seek medical evaluation
Severe shivering (uncontrollable shivering) Remove to warming hut or warm area. Give warm fluids.
Minor frost bite (frost nip) red skin on tips of ears, nose, or fingers Gradually warm up affected area. Remove to warm area and seek medical attention.
Feeling of excessive fatigue Remove to warm hut. Do not allow to sleep or lie down. Provide warm fluids.
Drowsiness Same as above.
Euphoria (feeling of elation or well being) Remove to warm hut. Judgment impaired--do not allow to be left alone. Seek medical attention.
Club or wooden foot feeling (limbs--loss of feeling or numbness) Same as above.
Frostbite (fingers/toes--numb, bright red) Same as above.

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