TB 9-2320-279-13&P-4
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Table 3. Common Abbreviations. - Continued
OFFICIAL NOMENCLATURE
ABBREVIATION
TMDE
Test, Measuring, and Diagnostic Equipment
TOE
Tables of Organization and Equipment
u/m
Unit of Measure
UOC
Usable-On Code
VDC
Volts Direct Current
XHD
Extra heavy-duty
Table 4. Warning Icons Used In This Technical Bulletin.
WARNING ICON
DESCRIPTION
AIR PRESSURE - human hand blocking air gun shows the need to re-
duce air pressure before use or debris may injure user, and/or damage
equipment.
BIOLOGICAL - abstract symbol bug shows that a material may contain
bacteria or viruses that present a danger to life or health.
CHEMICAL - drops of liquid on hand shows that the material will cause
burns or irritation to human skin or tissue.
CRYOGENIC - hand in block of ice shows that the material is extremely
cold and can injure human skin and tissue.