MIL-STD-1622B(SH)
4.2.4 Isopropyl alcohol (IPA).
4.2.4.1 Applicability. Isopropyl alcohol (IPA) is a cleaning solvent that is acceptable for use as a precleaner for critical applications and as a cleaner for general applications with compatible material. IPA shall not be used as a precleaner for teflon in either a diver's air systems or an air system supplying oxygen generating equipment. IPA should conform to TT-I-735 or equal. IPA is soluble in water and commercial grades can have as much as
30% water.
4.2.4.2 Safety precautions. Follow the safety precautions recommended in the vendor's Material Safety Data Sheet and the following:
(a)IPA is a volatile hydrocarbon solvent with a boiling point of about
180oF. IPA is extremely flammable having a flash point of 56oF.
IPA vapors are toxic having a recommended 8-hour time weighted
average exposure criteria of 400 ppm. Ingestion of IPA will cause
burning of the gastrointestinal tract, nausea, vomiting, bleeding,
CNS depression, hemolysis, and pulmonary damage. Ingestion of as
little as 10 mL may cause serious injury, while ingestion of 240
mL can be fatal.
(b)An industrial hygienist, gas free engineer, gas free person, or
other designated individual shall verify that ventilation in the
space is adequate to keep the concentration of the solvent below
the recommended exposure criteria during anticipated operations,
excluding accidents or spills. If excessive solvent concentration
is present, approved respirators shall be worn (see 6.4). Use
caution when ventilating IPA vapors since the vapors are
flammable. Explosion proof equipment may be necessary.
(c)IPA is absorbed by non-metallic material, such as teflon, and
unless carefully dried may off-gas flammable and toxic material.
(d)In the event any adverse health effects are experienced, cease
operations involving IPA and consult the cognizant medical
department representative for additional guidance.
4.2.4.3 Disposal. Disposal of isopropyl alcohol shall be in accordance with local, state, and federal regulations.
4.2.4.4 Compatibility. Where specific information with respect to compatibility is lacking, perform compatibility testing as specified in A.3 of Appendix A.
4.2.5 NAVSEA approved halogenated solvents.
4.2.5.1 Applicability. A NAVSEA approved halogenated solvent, as specified and subject to the limitations in Appendix B, can be used as a cleaner for instruments as specified in 5.5, for cryogenic systems and piping as specified in 5.7, and for field wipe as specified in 5.13.4. Use of a NAVSEA approved halogenated solvent for any other application requires local engineering, environmental and industrial hygiene approval.
4.2.5.2 Safety precautions. For any NAVSEA approved halogenated solvent, follow the safety precautions recommended in the vendor's Material Safety Data Sheet and the following:
(a)An industrial hygienist, gas free engineer, gas free person, or other designated individual shall verify that ventilation in the space is adequate to keep the concentration of the solvent below the recommended exposure criteria during anticipated operations,
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