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contaminated. Fuel tank cleaning crews using Tyvek coveralls as the only garment have not
experienced the skin problems encountered using the 50/50 blend. NOTE: The static-dissipating
coating on Tyvek coveralls is water-soluble. Loss of the coating should not be a problem during
low lower explosive limit (LEL) conditions. Use properly coated coveralls during the initial opening
of a tank when explosive vapor levels may be present outside of the tank (paragraph 8.4.2). When
wearing Tyvek coveralls, take the same precautions as with the 50/50 blend, and ground yourself
periodically to remove static charges.
188.8.131.52. Studies have identified the greatest static charges were created during the replacement or
removal of outer garments such as field jackets and parkas. To end this hazard potential,
personnel must not put on or remove such garments while engaged in fuels handling or servicing
184.108.40.206. Civilian or military clothing of all wool, silk, or nylon materials, or blends of silk or
nylon, generate far greater electrostatic charges and constitute an unacceptable hazard potential;
therefore, clothing made of these materials must not be worn as outer garments during fuels
servicing or handling operations. Wool stockings, wool glove inserts, woolen navy stocking caps
(where authorized), and underwear of nylon, silk, or polyester poses no significant hazard and are
220.127.116.11. Foul weather gear is allowed in Table of Allowances (TA) 016, Table of Allowances for
Special Purpose Clothing and Personal Equipment, for LFM personnel who are subject to outside
work during inclement weather. Any type of clothing may be worn as outer garments when working
with high-flashpoint fuels (JP-5, JP-8, JP-10, Jet A, Jet A-1, or diesel). However, when servicing
aircraft with low-flashpoint fuels (JP-4, Jet B, AVGAS, MOGAS), clothing containing more than
65% of any combination or mixture of nylon, rayon, wool, or polyester must not be worn
(T.O. 00-25-172, Ground Servicing of Aircraft and Static Grounding/Bonding, paragraph 4-16d).
8.3. First Aid.
8.3.1. Inhaling Vapors. The concentration of gasoline, jet fuel, or fuel oil vapors that can be inhaled
safely is far below that required to reproduce combustible or explosive mixtures with air. Even one-
tenth of the concentration needed for combustion or explosion is harmful if inhaled for too long.
Remove persons showing signs of dizziness, nausea, or headache from the hazardous area. Recovery
from early symptoms is usually prompt after exposure to fresh air. If a person is overcome,
administer first aid at once and get prompt medical attention. If breathing has stopped, administer
cardiopulmonary resuscitation (CPR). When working with JP-5/8 in a confined space, be aware that
vapors can be harmful even with an LEL of 0 unless the space has been completely freed of vapor.
8.3.2. Swallowing. Petroleum products are exceedingly irritating when swallowed. Do not induce
vomiting except as directed by a physician, as uncontrolled vomiting may cause more petroleum
products to go down the windpipe and produce severe and rapidly progressing pneumonia. If
choking or vomiting occurs, the subject should be placed on his or her stomach with the head turned
to the side and airways cleared to ensure drainage by gravity and to decrease the chance of aspiration.
If victim is unconscious and not breathing, administer CPR.
8.3.3. Eye Wash Facilities. Fixed eyewash facilities are required in shops, pumphouses, and other
similar facilities (AFOSH Std 91-32, Emergency Shower and Eyewash Units). Portable units are
available to provide initial cleansing until a fixed unit can be reached. Consult your bio-
environmental engineer (BEE) for advice on the best unit for the application.