TM 10-6630-245-13&P
a.
Possible Effects
(1)
Contamination of reagents and samples.
(2)
Dust or sand damage to Spectrophotometer.
b.
Precautions
(1)
Take extra precaution to shield water samples and reagents from contamination by dust or sand.
(2)
Shield Spectrophotometer from dust or sand. Wipe surface clean after use with damp cloth.
2.7.6. High Altitude: May affect some tests and reagents. Specific possible effects of high altitude include:
a.
Possible Effects
(1)
Affects amount of oxygen dissolved in water.
(2)
Liquid reagents may evaporate more quickly.
b.
Precautions
(1)
Perform steps (1) through (6) of dissolved oxygen test (para 2.6.8.8) as quickly as possible.
(2)
Refer to table 2-2 in paragraph 2.6.8.8 for effects of pressure on saturation of oxygen in water.
(3)
Make sure lids to all liquid reagents are kept tightly closed.
2.7.7. High Humidity: Should generally not interfere with tests but may affect Spectrophotometer.
a.
Possible Effects
(1)
May accelerate or cause corrosion of Spectrophotometer batteries.
(2)
May cause damage to Spectrophotometer.
b.
Precautions
(1)
Check batteries frequently. Clean terminals.
(2)
Avoid exposing the Spectrophotometer to heavy moisture for extended periods of time.
2.8. EMERGENCY PROCEDURES.
In the event of a power outage, the Spectrophotometer may be operated with a battery pack included as standard
equipment, located in the bottom of the case (fig. 1-1). See paragraph 2.6.2 for set up and operation of the
Spectrophotometer.
2.9. NUCLEAR, BIOLOGICAL, AND CHEMICAL (NBC) DECONTAMINATION PROCEDURES.
NOTE
Detailed decon procedures can be found in FM 3-3, FM 3-4, and FM-3-5.
a.
General: The following emergency procedures can be performed until field NBC decon facilities are available.
b.
Emergency Procedures: If NBC attack is known or suspected, mask at once and continue mission. If outside,
follow decon procedures below to avoid taking contamination into a controlled area. Do not unmask until told to
do so.
(1)
Nuclear decontamination: Brush fallout from skin, clothing, and equipment with available brushes, rags,
and tree branches. Wash skin and have radiation check made as soon as tactical situation permits.
(2)
Biological decontamination: Remain masked and continue mission until told to unmask.
2-57
