1、MIL-PRF-83779C 16-December 2013 SUPERSEDING MIL-W-83779B 17 January 1985 PERFORMANCE SPECIFICATION WATER INDICATING PASTE Inactive for new design after 21 October 2005 AMSC N/A FSC 6850 METRIC Comments, suggestions, or questions on this document should be addressed to AFPA/PTPT, 2430 C Street, Bldg
2、70, Area B, Wright-Patterson AFB OH 45433-7632 or e-mailed to AFPA.PTPSwpafb.af.mil. Since contact information can change, you may want to verify the currency of this address information using the ASSIST Online database at https:/assist.dla.mil. Provided by IHSNot for ResaleNo reproduction or networ
3、king permitted without license from IHS-,-,-MIL-PRF-83779C 2 This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers water indicating paste used to determine the water level in tanks of aviation jet fuels and
4、marine diesel. 2. APPLICABLE DOCUMENTS 2.1 General. The documents listed in this section are specified in sections 3 and 4 of this specification. This section does not include documents cited in other sections of this specification or recommended for additional information or as examples. While ever
5、y effort has been made to ensure the completeness of this list, document users are cautioned that they must meet all specified requirements of documents cited in sections 3 and 4 of this specification, whether or not they are listed. 2.2 Government documents. 2.2.1 Specifications, standards, and han
6、dbooks. The following specifications, standards and handbooks form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract. DEPARTMENT OF DEFENSE STANDARDS MIL-DTL-5624 Turbine Fuel, Aviation, G
7、rades JP-4 and JP-5 MIL-DTL-16884 Fuel, Naval Distillate MIL-DTL-83133 Turbine Fuel, Aviation, Kerosene Type, JP-8 (NATO F-34), NATO F-35, and JP-8+100 (NATO F-37) MIL-DTL-85470 Inhibitor, Icing, Fuel System, High Flash NATO Code Number S-1745 COMMERCIAL ITEM DESCRIPTIONS A-A-59282 Chemicals, Analyt
8、ical; General Specification for (Copies of these documents are available online at https:/assist.dla.mil or from the Standardization Document Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094) 2.2.2 Other Government documents, drawings, and publications. The following other Go
9、vernment documents, drawings, and publications form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract. CODE OF FEDERAL REGULATIONS Title 29, Part 1910 Occupational Safety and Health Standa
10、rds (Copies of this document are available online at http:/www.ecfr.gov or from the U.S. Government Printing Office, 732 North Capitol Street, NW, Washington, DC 20401-0001.) 2.3 Non-government publications. The following documents form a part of this document to the extent specified herein. Unless
11、otherwise specified, the issues of these documents are those cited in the solicitation or contract. ASTM INTERNATIONAL (ASTM) ASTM D1655 Aviation Turbine Fuels (DoD Adopted) (Copies of this document are available online at http:/www.astm.org or the ASTM International, 100 Barr Harbor Drive, West Con
12、shohocken PA 19428-2959) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-83779C 3 2.4 Order of precedence. Unless otherwise noted herein or in the contract, in the event of a conflict between the text of this document and the references cited
13、 herein, the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 First article. When specified, a sample shall be subjected to first article inspection in accordance w
14、ith 4.1 (see 6.2). 3.2 Recycled, recovered, or environmentally preferable materials. Recycled, recovered, or environmentally preferable materials should be used to the maximum extent possible, provided that the material meets or exceeds the operational and maintenance requirements, and promotes econ
15、omically advantageous life cycle costs. 3.3 Hazardous Materials. The water indicating paste shall not contain carcinogenic or potentially carcinogenic constituents as defined under the Hazard Communication Standard 29 CFR 1910.1200. 3.4 Water Indication. The water indicating paste shall clearly indi
16、cate contact with water by a definite color change under the following conditions (See 4.3): a. Ambient temperature range, -23 C to 43 C. b. In water levels, containing from 0 percent to 60 percent fuel system icing inhibitor. c. In water levels containing up to 1,000 parts per million (ppm) chlorid
17、e, by weight. 3.5 Time for color change. The maximum time required for the water indicating paste to change color in contact with the water level shall be 30 seconds (See 4.3.3). 3.6 Storage stability. The compound shall remain stable and shall be completely suitable for use for one year from date o
18、f manufacture (See 4.4). 3.7 Markings. Each container of water indicating paste shall be clearly and legibly marked with the manufacturers instructions for use. Instructions shall include specific directions for the most effective use of the particular water indicating paste, such as, but not limite
19、d to, the recommended thickness of application and approximate drying time before immersion as applicable. 4. VERIFICATION 4.1 Classification of inspections. The inspection requirements specified herein are classified as follows: a. First article inspection (see 4.2). b. Quality conformance inspecti
20、on (see 4.2). 4.2 First article and quality conformance inspections. 4.2.1 First article inspection. Preproduction samples consisting of twelve (12) jars or tubes of product, as applicable, shall be forwarded by the contractor, for performance of all examination and tests specified herein, to the de
21、signated laboratory (see 6.2 and 6.3). The product shall meet the requirements in 3.4 and 3.5. 4.2.2 Quality conformance inspection. Quality conformance inspections shall be accomplished by subjecting the product to all of the examinations and tests specified herein. The sample size shall be twelve
22、(12) units per lot. The product shall meet the requirements in 3.4 and 3.5. 4.2.2.1 Place of inspection. Quality conformance inspection shall be performed at the source. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-83779C 4 4.2.3 Lot defin
23、ition. By definition, a packaged lot is an indefinite number of unit packages of identical size and type, offered for acceptance and filled with a homogeneous mixture of material from one isolated container; or filled with a homogeneous mixture of material manufactured by a single plant run through
24、the same processing equipment with no change in ingredient material. 4.3 Quality control tests. 4.3.1 Test solutions. These solutions simulate a JP-8, Jet A or Jet A-1 tank containing high flash fuel system icing inhibitor (FSII), a JP-5 fuel tank containing FSII, and a naval distillate fuel tank, a
25、ll having water bottoms containing salt water. These solutions are used in evaluating the effectiveness of water indicating paste in determining the water cut in fuel tanks containing JP-8, Jet A or Jet A-1/FSII, JP-5/FSII, and naval distillate fuel with salt water bottoms. 4.3.1.1 Solution I, JP-8,
26、 Jet A or Jet A-1/FSII. This mixture is made up of JP-8, Jet A or Jet A-1 with a synthetic water bottom containing 60 percent fuel system icing inhibitor and 1000 parts per million (ppm) sodium chloride. Prepare as follows: a. Add 3,500 ml of JP-8 (conforming to MIL-DTL-83133, NATO F-34) or Jet A or
27、 Jet A-1 (conforming to ASTM D1655) to a suitable container. b. In a separate 750 ml beaker, add 0.5069 grams (g) reagent grade sodium chloride, A-A-59282, to 200 ml distilled water. Stir to dissolve, and add 300 ml FSII (conforming to MIL-DTL-85470, NATO S-1745). c. Add the FSII/sodium chloride sol
28、ution to the container of fuel, allowing the beaker to drain thoroughly. Do not rinse the beaker into the fuel container. 4.3.1.2 Solution II, JP-5/FSII. This mixture consists of JP-5 with a synthetic water bottom containing 60 percent FSII and 1000 ppm sodium chloride. Prepare as follows: a. Add 3,
29、500 ml of JP-5 (conforming to MIL-DTL-5624, NATO F-44) to a suitable container. b. In a separate 750 ml beaker, add 0.5069 g reagent grade sodium chloride A-A-59282, to 200 ml distilled water, stir to dissolve, and add 300 ml FSII (conforming to MIL-DTL-85470, NATO S-1745). c. Add the FSII/sodium ch
30、loride solution to the container of JP-5, allowing the beaker to drain thoroughly. Do not rinse the beaker into the JP-5 container. 4.3.1.3 Solution III, marine distillate fuel/salt water (water bottom). This mixture consists of marine distillate fuel with a synthetic water bottom containing 1,000 p
31、pm sodium chloride. Prepare as follows: a. Add 3,500 ml naval distillate fuel (conforming to MIL-DTL-16884, NATO F-76) to a suitable container. b. In a separate 750 ml beaker, add 0.5000 g reagent grade sodium chloride, A-A-59282, to 500 ml distilled water, and stir to dissolve. c. Add the salt solu
32、tion to the container of marine distillate fuel, allowing the beaker to drain thoroughly. Do not rinse the beaker into the container of marine distillate fuel. 4.3.2 Test procedures. 4.3.2.1 Preparation of water indicating paste. Prepare water indicating paste for test as follows: a. Chill six (6) t
33、ubes or jars of water indicating paste (whichever the contract or order Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-83779C 5 specified) to -23 C, and maintain at this temperature for at least two hours. b. Heat six (6) tubes or jars of wa
34、ter indicating paste (whichever the contract or order specified) to 43 C, and maintain at this temperature for at least two hours. 4.3.2.2 Preparation of solutions. a. Chill Solution I (JP-8, Jet A or Jet A-1/FSII solution) and Solution II (JP-5/FSII) until the fuel phase is -7 C. b. Chill Solution
35、III (naval distillate fuel/salt solution) until the fuel phase is 2 C. 4.3.3 Testing water indicating paste. 4.3.3.1 Chilled paste, chilled Solution I (JP-8, Jet A or Jet A-1/FSII). a. Remove an unused jar or tube of paste that has been chilled to -23 C from the cold box and immediately spread the p
36、aste on a typical dip stick or rod, according to the instructions on the tube or jar. b. Lower the stick or rod into Solution I, which has been chilled to -7 C, through the fuel and into the water phase containing the FSII. Allow the rod or stick to remain in the water bottom for 30 5 seconds. Raise
37、 the rod or stick into the fuel level and let it remain there for 60 5 seconds. Remove from the fuel and observe the color change at the water cut. c. The water cut shall be clearly identifiable by a distinct, sharp color change (see 3.4 and 3.5). 4.3.3.2 Chilled paste, chilled Solution II (JP-5/FSI
38、I). a. Remove an unused tube or jar of paste from the cold box, and follow the same procedure as in paragraph 4.3.3.1, using Solution II chilled to -7 C. b. The water cut shall be clearly identifiable by a distinct, sharp color change (see 3.4 and 3.5). 4.3.3.3 Chilled paste, chilled Solution III (m
39、arine distillate fuel/salt solution). a. Remove an unused tube or jar or paste from the cold box, and follow the same procedure as in paragraph 4.3.3.1, using Solution III chilled to 2 C. b. The water cut shall be clearly identifiable by a distinct, sharp color change (see 3.4 and 3.5). 4.3.3.4 Heat
40、ed paste, chilled Solution I (JP-8, Jet A or Jet A-1/FSII). a. Remove an unused jar or tube of paste that has been heated to 43 C from the oven and immediately spread the paste on a dip stick or rod according to instructions on the tube or jar. b. Lower the stick or rod into Solution I, which has be
41、en chilled to -7 C, through the fuel and into the water phase containing the FSII. Allow the rod or stick to remain in the water bottom for 30 5 seconds. Raise the rod or stick into the fuel level and let it remain there for 60 5 seconds. Remove from the fuel and observe the color change at the wate
42、r cut. c. The water cut shall be clearly identifiable by a distinct, sharp color change (see 3.4 and 3.5). 4.3.3.5 Heated paste, chilled Solution II (JP-5/FSII). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-83779C 6 a. Remove an unused tub
43、e or jar of paste from the oven and follow the same procedure as in 4.3.3.4, using Solution II chilled to -7 C. b. The water cut shall be clearly identifiable by a distinct, sharp color change (see 3.4 and 3.5). 4.3.3.6 Heated paste, chilled Solution III (marine distillate fuel/salt solution). a. Re
44、move an unused tube or jar of paste from the oven and follow the same procedure as in 4.3.3.4, using Solution III chilled to 2 C. b. The water cut shall be clearly identifiable by a distinct, sharp color change (see 3.4 and 3.5). 4.3.3.7 Chilled paste, ambient temperature Solution I, Solution II, an
45、d Solution III. a. Allow the three Solutions prepared in paragraph 4.3.1 (Solution I - JP-8, Jet A or Jet A-1/FSII, Solution II - JP-5/FSII, and Solution III - marine distillate fuel/salt solution) to reach ambient temperature. b. Remove an unused jar or tube that has been chilled to -23 C from the
46、cold box and immediately spread the paste on a dip stick or rod according to instructions on the tube or jar. c. Lower the stick or rod into Solution I through the fuel and into the water phase containing the FSII. Allow the rod or stick to remain in the water bottom for 30 5 seconds. Raise the rod
47、or stick into the fuel level and let it remain there for 60 5 seconds. Remove from the fuel and observe the color change at the water cut. d. The water cut shall be clearly identifiable by a distinct, sharp color change (see 3.4 and 3.5). e. Repeat 4.3.3.7(b) through 4.3.3.7(d) for ambient Solutions
48、 II and III. 4.3.3.8 Heated paste, ambient temperature Solution I, Solution II, and Solution III. a. Allow the three Solutions prepared in paragraph 4.3.1 (Solution I - JP-8, Jet A or Jet A-1/FSII, Solution II - JP-5/FSII, and Solution III - marine distillate fuel/salt solution) to reach ambient tem
49、perature. b. Remove an unused jar or tube that has been heated to 43 C from the oven and immediately spread the paste on a dip stick or rod according to instructions on the tube or jar. c. Lower the stick or rod into Solution I through the fuel and into the water phase containing the FSII. Allow the rod or stick to remain in the water bottom for 30 5 seconds. Raise the rod or stick into the fuel level and let
