504.3-66 reference/related documents

METHOD 504.3, ANNEX B

GENERAL FLUID INFORMATION CONTAMINANT FLUID GROUPS. (See paragraph 2.2.3)

The following groups of fluids are listed in Table 504.3-I for Procedure I, and Table 504.3-II for Procedure II. These lists are not all inclusive, and allow the addition of other fluids as called out in the test requirements.

• a. Fuels. Fuels will, for the most part, be of the gasoline, diesel or kerosene type, and whereas the former may be expected to evaporate rapidly - possibly with few permanently harmful effects, the latter two - being more persistent - can be damaging to many elastomers, particularly at elevated temperatures. Paints and most plastics are normally not affected by fuels, but silicone resin bonded boards may tend to de-laminate after prolonged exposure. Some fuels may have additives to inhibit icing or to dissipate static charges. Where there is reason to believe that these additives may increase the severity of the test, include them in the test fluids.
• b. Hydraulic Fluids. Commonly used hydraulic fluids may be of the mineral oil or ester-based synthetic type. The latter are damaging to most elastomers and to plastics; phosphate esters are especially damaging to these materials and to paint finishes.
• c. Lubricating Oils. Mineral or synthetic-based lubricating oils may be at elevated temperatures in their working states. Mineral oil is damaging to natural rubber but less so to synthetics such as polychloroprene, chlorosulphonated polyethylene, and silicone rubber. Synthetic lubricants are extremely damaging to plastics such as PVC, as well as to many elastomers.
• d. Solvents and Cleaning Fluids. Many areas of aircraft or vehicles may require dirt or grease removal before servicing can begin. The fluids given in Table 504.3-I are representative of those presently in use.
• e. Deicing and Antifreeze Fluids. These fluids may be applied, often at elevated temperatures, to the leading edges, intakes, etc., of aircraft and may penetrate areas where they can contaminate components and materiel. These fluids are based, typically, on inhibited ethylene glycols.
• f. Runaway Deicers. These fluids are used on runways and other areas to lower the freezing point of water. They may penetrate the undercarriage and equipment bays of aircraft as a fine mist.
• g. Insecticides. Aircraft flying in and through the tropics may be treated with insecticide sprays as a routine precaution. While it is unlikely that these will have a direct adverse effect on materiel, it may be necessary to make exploratory tests using a proprietary insecticide.
• h. Disinfectants. The primary contaminating agent is likely to be the disinfectant used, that will be a formaldehyde/phenol preparation, and its use on waste liquid in/from galleys and toilet compartments, where a leak may permit contamination of materiel below the leak.
• i. Coolant Dielectric Fluids. These are used as thermal transfer liquids to assist cooling of certain equipment. They are usually based on silicate ester materials, and their effects on materials may be considered to be similar to the phosphate ester hydraulic fluids, although not quite as severe.
• j. Fire Extinguishants. Many HALON extinguishing agents have been or are being banned in many countries. Although HALON 1301 is still in some legacy systems, the extinguishing agents replacing some older chemical compounds are FE25, FM200, CO2 ABC extinguishers, and newer types such as FE13. Fire fighting aqueous foams such as FFFP (Protein/Fluoroprotein foams) have been replaced with AFFF (Aqueous Film-Forming Foam). The necessity for testing with these products is based on the need to maintain equipment functioning after release of the extinguishant.

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MIL-STD-810H METHOD 504.3, ANNEX B

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MIL-STD-810H METHOD 504.3, ANNEX C

METHOD 504.3, ANNEX C HANDLING, DISPOSAL OF CHEMICALS, AND THE DECONTAMINATION OF TEST EQUIPMENT AND TEST ITEMS AFTER EXPOSURE TO CHEMICALS

Decontamination of test equipment, materials, and test items that have been subjected to a contamination by fluids (chemical compatibility) test is paramount when the test items are to be sent back to the users, manufacturer, or material management office for further evaluation or reuse. Many test items are too expensive to scrap and must be decontaminated.

• a. Always read the related SDS information for each chemical before use and during disposal. Personal protective equipment (PPE) such as gloves and safety glasses should be worn during handling of the chemicals and be familiar with the information found in the test site Chemical Hygiene Plan where applicable.
• b. Follow all Federal, State, and Local regulations for disposing of the chemicals after testing.
• c. Removing excess chemicals is necessary for safety to the user. Any residual chemical can be wiped with paper towels, rags or other soft cloth. The rags should be rung free of excess chemicals before being placed in a plastic bag and disposed of in accordance with Federal, State, and Local regulations.

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MIL-STD-810H METHOD 504.3, ANNEX C

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MIL-STD-810H METHOD

MIL-STD-810H

METHOD 504.3

• i. A-A-52557A, Notice 1, Fuel Oil, Diesel; For Posts, Camps and Stations.
• j. ASTM D975, Oils, Diesel Fuel.
• k. A-A-52624A, Notice 1, Antifreeze, Multi Engine Type.

1. ASTM D1141, Ocean Water, Substitute.

• m. MIL-DTL-12468, Decontaminating Agent, STB.
• n. MIL-PRF-14107, Lubricating Oil, Weapons, Low Temperature.
• o. MIL-PRF-5606H, Notice 1, Hydraulic Fluid, Petroleum Base, Aircraft; Missile and Ordnance; remain inactive for new design; however, documents valid for use.
• p. MIL-PRF-46170, Hydraulic Fluid, Rust Inhibited, Fire Resistant, Synthetic Hydrocarbon Base, NATO Code No. H-544.
• q. MIL-PRF-6083, Hydraulic Fluid, Petroleum Base, for Preservation and Operation.
• r. ASTM D910, Gasoline, Aviation.
• s. NATO STANAG 4370, Allied Environmental Conditions and Test Publication (AECTP) 300, Climatic Environmental Tests Method 314.
• t. Test Operations Procedure (TOP) 03-2-609, Chemical Compatibility of Non-metallic Materials Used in Small Arms Systems; USATEC, APG, MD 21005-5001. DTIC Acquisition No. A359425.
• u. MIL-PRF-23699F, Lubricating Oil, Aircraft Turbine Engine, Synthetic Base, NATO Code No. O-156.
• v. MIL-PRF-87937, Cleaning Compound, Aerospace Equipment.
• w. MIL-PRF-85570, Cleaning Compounds, Aircraft, Exterior.
• x. MIL-PRF-85704, Cleaning Compound, Turbine Engine Gas Path.

METHOD 504.3, ANNEX A

ENVIRONMENTAL AND TOXICOLOGICAL CONSIDERATIONS