(2)
Sunshine Scientific Instrument Company, 1810-12 Grant Street, Philadelphia, Pennsylvania
L. Portable X-ray equipment
3. Mercury Spillage Corrective Measures
A. Passenger Compartment or Main Cargo Deck
(1)
Log the incident with respect to the following:
(a)
Amount of spillage 1) Small - Broken thermometers, etc. 2) Larger - Such as might be expected by damage to a technical instrument using
mercury, etc.
(b)
Date and time of spillage
(c)
Exact location of spillage
(2)
General clean-up and inspection (using equipment available) must be made immediately after spillage occurs or immediately after spillage is detected.
(a)
Pick up all visible spillage (broken thermometer, etc.) by use of cardboard or paper troughs, scotch tape, zinc oxide tape. A medicine dropper is useful for larger globules of visible mercury. If none of these methods are practical, isolate the spillage by covering it with fastened-down cloth (towels, plastic sheets, etc.) until vacuum methods, etc., become available.
(b)
Vacuum thoroughly the carpet area (or the cargo deck) where the spillage occurred.
500
5-51-121 Page 202 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. Aug 15/80
1) For a small spillage, use a trap-type glass container, with a high flow vacuum cleaner (Fig. 201).
NOTE: Vaporized mercury may contaminate commercial vacuum cleaner. A contaminated vacuum cleaner should be cleaned after use.
2) For a larger spillage, use a mercury vacuum pump to collect mercury without the emission of mercury from the exhaust.
H31006
500 Trap-Type Glass Container
Oct 20/86 Figure 201 5-51-121
Page 203
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
(c)
Make a visual inspection of seat track rails (and crease beam components) if spillage occurs near them. Use the equivalent of a 10X hand lens for determination of corrosion damage. Any evidence of mercury corrosion or embrittlement requires repair.
NOTE: A sensing device (mercury sniffer) is recommended to detect hidden deposits of mercury when a spillage is classified as "larger." If available, use X-ray equipment to assist in detecting mercury.
(d)
Make a close inspection of all exposed brass metal, such as turnbuckles, or cables. A silver color on non-plated brass is indication of mercury reactions.
(3)
Strict clean-up and inspection (using mercury vacuum pump, mercury sniffers, X-ray equipment, etc.), and possible repairs, must be made during first airplane service at a main base.
(4)
Reinspect area of spillage and areas below spillage at first overhaul.
B. Lower Cargo Compartments
(1)
Log the incident with respect to the following:
(a)
Amount of spillage 1) Small - Broken thermometers, etc. 2) Larger - Such as might be expected by damage to a technical instrument using
mercury, etc.
(b)
Date and time of spillage
(c)
Exact location of spillage
(2)
General clean-up and inspection (using equipment available) must be made immediately after spillage occurs or immediately after spillage is detected.
(a)
Pick up all visible spillage by use of cardboard or paper troughs, scotch tape, zinc oxide tape. A medicine dropper is useful for larger globules of visible mercury. If none of these methods are practical, isolate the spillage by covering it with fastened-down cloth (towels, plastic sheets, etc.) until vacuum methods, etc., become available.f
(b)
Vacuum visible regions of a cargo compartment immediately. Vacuum thoroughly the aluminum alloy deck floor where the spillage has occurred. Vacuum also any portion of a bulkhead as required. The use of a mercury vacuum pump is recommended.
(c)
Make a visual inspection immediately of visible structural components affected (cargo track rails, deck floor, bulkheads, etc.). Use the equivalent of a 10X power hand lens for determination of corrosion damage to readily accessible metal structural components. Any evidence of mercury corrosion or embrittlement requires repair.
(d)
Make a close inspection of all exposed brass metal, such as turnbuckles, or cables. A silver color on nonplated brass is an indication of mercury reactions.
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