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Center for Inter-Disciplinary Remotely Piloted Aircraft Studies (CIRPAS)

The information on this page is For Official Use Only - Privacy Sensitive: Any misuse or unauthorized disclosure may result in both civil and criminal penalties. 


The following hazards have been identifed during the most recent routine Industrial Hygiene survey conducted 17 August 2015. The routine industrial hygiene survey process evaluates potential hazards to employees based on existing operations at the time of the survey. It is the responsibility of the Lab/Space Manager to report any changes in/new operations that could alter/introduce health hazards and exposures involved so that the new conditions and resulting exposures can be properly evaluated. To report changes, complete this form and email to for review. The NPS Safety Office will then contact the servicing BUMED Industrial Hygienist for possible further actions.


Examples of changes that the need to be reported include the following:

  • new operations with suspected health hazards are performed
  • new chemical products are used
  • an increase in major chemical usage
  • new equipment with potential noise hazards is used
  • other new equipment posing suspected or known health hazards, such as lasers, is used
  • exposure frequency and time changes of operations with potential or known health hazards
  • a change in local exhaust ventilation systems

Full Industrial Hygiene Reports for this space may be found at this page.



  • There are currently 2 turbo propeller-operated and 1 reciprocating propeller-operated aircraft in this department. A turbofan A-10 aircraft has been acquired since the previous survey, but it is operated in the center’s Oklahoma operations center. All aircraft maintenance procedures are performed by private company (contracted) mechanics.
  • The following operations are performed by DoD civilians:
    • Acetone, *isopropyl alcohol, and *2-propanol are used for cleaning of glass surfaces associated with optics systems. These solvents are applied to the glass surfaces with small Q-tips.
    • Very small amounts of *2-propanol are added to the nebulizer associated with one of the systems worked on.
    • *Butanol (*butyl alcohol) is added to the particle counter chamber of another system through immersion of a tube connected to a vacuum pump into the chemical container.
    • Mixes *methanol with bis (2-ethylhexyl) sebacate (oil) for insertion into the aerosol generator.
    • Conducts minimal *lead-tin soldering in the workroom using solder that has integrated flux.
    • Hand-held torches using cartridges of butane fuel are used when out of the shop for such uses as small soldering jobs involving *lead-tin solder or Bernzomatic Silver-Bearing Electrical Rosin Core Solder, or for heating shrink tubing. The silver-bearing solder was used only once for about 10 minutes.
    • Less than 0.5 ounces of Ace Lo VOC PVC Cement were used once for the shop’s internal fabrication of a non-electrical/non-electronic bench test equipment support item, but it is stored and not used again since then.
    • Sprayon S02302 Environmental Contact Cleaner in an aerosol can is used for such purposes as removing corrosion and excess flux on circuit boards.
    • Swagelock Snoop Liquid Leak Detector is intended for application to tubing and joints suspected of leaks, but it has not been used to date.
    • Lawson Flexseal Dispens-A-Gasket in a semi-aerosol can, intended for fixing items subject to airplane vibration (such as potentiometers) in place, is available but has never been used.
  • Chloroform is stored but not currently used.
  • Cordless powered drivers (“screw guns”) are infrequently used to tighten screws in various systems, but not for drilling.
  • Uses a small vacuum to simulate an air flow rate of 50 meters per second during instrument calibration.
  • The Manned Aircraft Program Manager stands just outside the hangar door observing aircraft run-ups prior to taxiing to the runway for departure.
  • The RADAR Systems Program Manager operates an RF transceiver truck, where the transceiver is mounted on the truck’s platform bed. It is usually operated in locations away from the Monterey area, and the platform has a scissorslift which elevates the transceiver to the same height as the truck cab roof. Only the Program Manager and CIRPAS Director are present during operation of the RF transceiver. A cordless driver (“screw gun”) is also used by the RADAR Program Manager on a limited basis for driving/undriving screws, but not for drilling.

*  = reproductive hazard


Engineering/Work Practice Controls:  

Engineering controls to minimize exposure to hazardous stressors are limited to use of temperature-controlled soldering irons during soldering operations and concurrent, elective use of a carbon-filtered Hako ESD Machine to reduce airborne fumes created during these processes.


Respiratory Protection Program:

Operations requiring the use of respirators are not performed in this space.

Any employee wishing to wear a respirator (including dust masks) must contact the NPS Respiratory Protection Program Manager (RPPM) to recieve OSHA mandated training (Per OSHA 1910.134 App D) and approval.


Lead Control Program:

Exposure to lead is limited to lead-tin soldering in this space, the Navy’s extensive monitoring data base indicates insignificant airborne levels of lead are generated by soldering performed using temperature-controlled irons.  Thus enrollment of personnel performing this process in the Lead medical surveillance program is unnecessary, but completion of both Lead Awareness and Occupational Reproductive Hazard Awareness training is required.


Hearing Conservation Program:

The measured noise levels of the cordless powered hand drivers (“screw guns”) and Hoover vacuum unit used in the shop area by DoD personnel, as well as that for the cordless “screw gun” used by the RADAR systems manager, are below the Navy criterion level outlined in BUMEDNOTE 6260 BUMED-M44 of 26 May 15, enclosure (1), paragraph 1. The Manned Aircraft Program Manager may stand just outside the hangar door adjacent to the flight line during airplane run-up. The measured noise level at this location exceeds the Navy criterion level, and use of hearing protection needs to continue. However, the Manager’s 8-hour average noise exposure does not exceed the NOEL as outlined in BUMEDNOTE 6260 BUMED-M44 of 26 May 15, enclosure (1), paragraph 1, and therefore he is not required to either receive audiograms (hearing tests) or complete hearing conservation training.


Personal Protective Equipment (PPE):

Process Recommended PPE (Glove Material Offering Best Protection)
(Thin) Nitril Rubber Gloves Handling of chemical products
Ear muffs Observing airplane run-up


Occupational Reproductive Hazards Program:

Location Hazard/ Type Product/ Process Exposure Assessment
Hanger just outside door Noise: PF Observe aircraft launches Negative- 8 hr calculated exposure insignificant
Hanger Workroom Lead: M, F, D Soldering Negative- monitoring data of similar operations
Hangar Workroom Alcohols: F Chemical cleaning of optic systems, use of nebulizer, addition to test equipment Negative- minimal usage

M = male hazard              F = female hazard           PF = pregnant female hazard           D = developmental hazard (hazard to the fetus)


Pregnant women, or who are trying to achieve pregnancy regardless of military or civilian status, should inform their attending health professional(s) that they perform any of these processes that exposes them to potential female, pregnant female, or developmental reproductive hazards and follow any medical guidelines provided. Female (military) students performing any of the above processes involving female, developmental, or pregnant female hazards must inform their supervisor as soon as possible that they are pregnant. They and their supervisors must then complete the Developmental Hazard Worker’s Statement Form and Supervisor’s Statement Forms. The student then must be scheduled for an appointment with an Occupational Health Physician, during which the form needs to be submitted and reviewed. All guidance provided by this process must be followed, and pregnant women should avoid or at least minimize work with the chemical products listed above that pose potential female, pregnant female, or developmental hazards, as well as avoid or at least minimize exposure while present during noise hazardous processes.


  • OPNAVINST 6000.1C, para 101e(3), Appendix B, and Appendix C
  • NMCPHC Technical Manual NMCPHC-TM-OEM 6260.01C,Section XII
  • OPNAVINST 5100.23G, Ch 29, Para 2903d(3)


Hazardous Communications (HAZCOM):

  • Information on Safety Data Sheets (SDS) and how to read them is found on the NPS HAZCOM page.
  • A full listing of Safety Data Sheets by storage location at NPS may be found on our SDS page
  • The SDSs of the substances that are stored in this space follows: