1、 INCH-POUND MIL-STD-1247D 29 January 2009 SUPERSEDING MIL-STD-1247C 13 October 1989 DEPARTMENT OF DEFENSE STANDARD PRACTICE MARKINGS, FUNCTIONS AND HAZARD DESIGNATIONS OF HOSE, PIPE, AND TUBE LINES FOR AIRCRAFT MISSILE, AND SPACE SYSTEMS This document is inactive for new design. AMSC N/A AREA SAFT D
2、ISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-STD-1247D ii FOREWORD 1. This standard is approved for use by all Departments and Agencies of the Department of Defen
3、se. 2. Comments, suggestions or questions should be addressed to: Commander, U.S. Army Aviation and Missile Command, Attn: AMSRD-AMR-SE-TD-ST, Redstone Arsenal, AL 35898-5000. Since contact information can change, you may want to verify the currency of this address information using the ASSIST Onlin
4、e database at http:/assist.daps.dla.mil. 3. Markings, functions and hazard designations of hose, pipe and tube lines used in aircraft, missile and space systems will promote safety, expedite training, lessens chances of error in operation, and facilitate cross-servicing. This process of positive ide
5、ntification assures proper routing and functioning of various types cylindrical lines used in these systems. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-STD-1247D iii CONTENTS PARAGRAPH PAGE 1. SCOPE 1 1.1 Scope . 1 1.2 Applicability 1 2. APP
6、LICABLE DOCUMENTS . 2 2.1 General 2 2.2 Government documents . 2 2.2.1 Specifications, standards, and handbooks 2 2.3 Non-Government publications . 2 2.4 Order of precedence . 3 3. DEFINITIONS . 3 3.1 Cold lines . 3 3.2 Compressed gas lines . 3 3.3 Function . 3 3.4 Hot lines . 3 3.5 Identification g
7、roup . 3 3.6 Instrument air lines 3 3.7 Lines 3 3.8 Pneumatic air lines . 3 3.9 Subfunction (subsidiary function) . 4 4. GENERAL REQUIREMENTS . 4 4.1 Indentification 4 4.1.1 Identification of function . 4 4.1.2 Identification of subsidiary function 4 4.1.3 Designation of hazards 4 4.1.4 Designation
8、of direction of flow 4 4.1.5 Designation of pressure . 4 4.2 Identification media . 5 4.2.1 Tapes 5 4.2.2 Tags . 5 4.2.3 Paint . 5 4.2.4 Painted identification group . 5 5. DETAILED REQUIREMENTS 6 5.1 Function 6 5.1.1 Colors . 6 5.1.1.1 Application of colors 6 5.1.1.2 Colors on tapes . 6 5.1.1.3 Col
9、or on painted bands . 6 5.1.2 Symbols 7 5.1.3 Wording 7 5.1.3.1 Wording on tapes 7 5.1.3.2 Wording on tags 7 5.1.3.3 Painted words . 7 5.2 Hazards . 8 5.3 Direction of flow 9 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-STD-1247D iv CONTENTS P
10、ARAGRAPH PAGE 5.4 Tapes 9 5.4.1 Tags . 9 5.4.2 Paints . 9 5.5 Working pressure . 9 5.6 Miscellaneous lines 9 5.6.1 Electrical conduit . 10 5.6.2 Air conditioning ducts . 10 5.6.3 Vents, fills, and drains . 11 5.6.4 Flex hose 11 5.7 Placement of identification 11 5.7.1 Placement of tapes . 11 5.7.2 P
11、lacement of bands, tags and paints 11 5.7.3 Facility interface 11 6. NOTES 12 6.1 Intended use . 12 6.2 Acquisition requirements . 12 6.3 Metrication . 12 6.4 International standardization agreements 12 6.5 Subject term (keyword) listing 12 6.6 Changes from previous issue . 12 FIGURE 1 Examples of i
12、dentification groups . 13 2 Color-coded functional identification tapes . 14 3 Warning symbols . 15 4 Optional arrangement for identification . 16 5 Examples of electrical identification . 17 6 Tag identification . 17 TABLE I Functions and associated symbols 8 II Classification of hazards, identific
13、ation marking, and corresponding MIL-STD-101 color 10 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-STD-1247D 1 1. SCOPE 1.1 Scope. This standard establishes material labeling requirements for identification, function, subfunction, pressures, h
14、azards and direction of flow for pipes, hoses and tube lines used in aircraft, missile, space systems, and support equipment. The use of colors, words and symbols to identify the functions of such items (to include approved abbreviations), and the dimensions of labeling items such as tags, tapes, an
15、d bands, are specifically prescribed (see 4.1.1). 1.2 Applicability. The criteria for marking functions upon, and designating hazardous pipes, hoses and tube lines, are designed to result in rapid servicing of functional systems to return them to full operation and are an integral part of the comple
16、te system. Lines, pipes, and hoses external to these systems should be coded in accordance with MIL-STD-101. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-STD-1247D 2 2. APPLICABLE DOCUMENTS 2.1 General. The documents listed in this section are
17、 specified in sections 3, 4, or 5 of this standard. This section does not include documents cited in other sections of this standard or recommended for additional information or as examples. While every effort has been made to ensure the completeness of this list, document users are cautioned that t
18、hey must meet all specified requirements of documents cited in sections 3, 4 or 5 of this standard, whether or not they are listed. 2.2 Government documents. 2.2.1 Specifications, standards and handbooks. The following specifications, standards, and handbooks form a part of this document to the exte
19、nt specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract. FEDERAL STANDARDS FED-STD-595/10049 Brown, Gloss FED-STD-595/11136 Red, Gloss FED-STD-595/12197 Orange, Gloss FED-STD-595/13655 Yellow, Gloss FED-STD-595/14187 Green, Gloss
20、 FED-STD-595/15102 Blue, Gloss FED-STD-595/16473 Gray, Gloss FED-STD-595/17038 Miscellaneous, Gloss DEPARTMENT OF DEFENSE SPECIFICATIONS MIL-T-9906 - Tape, Identification, Aerospace Vehicle Tubing Marker DEPARTMENT OF DEFENSE STANDARDS MIL-STD-101 - Color Code for Pipelines and for Compressed Gas Cy
21、linders MIL-STD-2161 - Paint Schemes and Exterior Markings for U.S. Navy and Marine Corps Aircraft (Copies of these documents are available online at http:/assist.daps.dla.mil/quicksearch.) 2.3 Non-Government publications. The following documents form a part of this document to the extent specified
22、herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-STD-1247D 3 AEROSPACE INDUSTRIES ASSOCIATION OF AMERICAN, INC. (NATIONAL AEROSPACE
23、STANDARDS) NAS 1411 - Band Marker, Blank (Application for copies should be addressed to Aerospace Industries Association of America, Inc., 1250 Eye Street, N.W., Suite 1200, Washington, DC, United States, 20005-3924 or http:/www.aia-aerospace.org.) 2.4 Order of precedence. Unless otherwise noted her
24、ein or in the contract, in the event of a conflict between the text of this document and the references cited 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. DEFINITION
25、S 3.1 Cold lines. The term is used to denote lines in which the temperature of the flowing medium is below -60F (-51C). 3.2 Compressed gas lines. Compressed gas lines are lines which carry a gaseous substance, other than air under pressure or vacuum. 3.3 Function. A term describing the system or act
26、ive medium (material) contained in the conduit, pipes, hose or tube lines. 3.4 Hot lines. This term is used in classifying lines on which the surface temperature ranges above 325F (162.8C). 3.5 Identification group. The group of all the markings necessary for positive identification of a line. The g
27、roup includes colors, words, and symbols denoting function, hazard, pressure, voltage, and direction of flow without repetition of any element, and pertinent to positive identification of the line. 3.6 Instrument air lines. Instrument air lines are lines which carry air for activating pressure opera
28、ted gages. 3.7 Lines. A conveyance medium which includes any pipe, hose, or tube used to carry liquids and gases. Vacuum lines are also included. It also includes any conduit used to house electrical wires or cables. Accessories such as pipe covering are considered as parts of the line. NOTE: Access
29、 doors or panels to servicing points should be identified in accordance with MIL-STD-2161, or as otherwise approved by the procuring activity. 3.8 Pneumatic air lines. Pneumatic air lines are lines which carry air, other than instrument air, under pressure. Provided by IHSNot for ResaleNo reproducti
30、on or networking permitted without license from IHS-,-,-MIL-STD-1247D 4 3.9 Subfunction (also subsidiary function). The mechanical, operations or conditioning effects which result from the application of a function to a system or subsystem, causing the system or subsystem to perform its intended ope
31、ration (as in “Flaps Up,” “Flaps Down,” heating or cooling and the like). 4. GENERAL REQUIREMENTS 4.1 Identification. Each line shall be identified as to function and subsidiary functions when required, applicable hazard and direction of flow if applicable, except as follows: a. Water piping systems
32、 containing water for human consumption shall be painted white or identified as directed by the procuring activity. b. There is no requirement to mark temporary lines or umbilical cables. c. Tapes shall be used for normal operating temperature -60F to +325F (-51C to +162.8C). However, where the use
33、of tapes is not feasible due to temperature conditions, bands or tags impression stamped or electro-etched with function, pressure, hazard, and direction of flow as applicable, shall be used. Figures 1 and 6 illustrate band and tag acceptable for this purpose. Bands, tags, and tapes shall not be use
34、d in the engine compartments where there is a possibility of the bands, tags, or tapes being drawn into the engine intake. For such locations, paints conforming to this standard, and which has no deleterious effect on the material used for the lines, shall be used for identification purposes. 4.1.1
35、Identification of function. Function shall be identified by the use of words, colors, and symbols as shown in figure 2, except that symbols need not be used where identification is accomplished with paints, and neither colors nor symbols are required on tags or bands. 4.1.2 Identification of subsidi
36、ary function. If required for unique identification of a line, additional information relating to function of a line may be imprinted in words or abbreviations on the colored portion of the MIL-T-9906 tape, as shown in figure 4, metal tags as shown in figure 6, or bands as shown in figure 1. 4.1.3 D
37、esignation of hazards. Hazardous materials or conditions shall be designated in black letters on white or metallic (silvery or chrome) background as specified in 5.2 (see figure 1). Where such hazards result from working pressure only, and where the pressure is indicated in the identification, no fu
38、rther identification of hazard is necessary. Under conditions warranting special care over and above that required for the identified hazard, the skull and cross-bones symbol, illustrated in figure 3, shall be used. 4.1.4 Designation of direction of flow. When required, a direction of flow arrow, as
39、 shown in figures 1, 4, or 6 shall be used to indicate the direction in which the content of the line is flowing. A two-headed arrow will be used to indicate reversible flow. 4.1.5 Designation of pressure. Designation of pressure shall be as specified in 5.5. Provided by IHSNot for ResaleNo reproduc
40、tion or networking permitted without license from IHS-,-,-MIL-STD-1247D 5 4.2 Identification media. 4.2.1 Tapes. Tape conforming to MIL-T-9906, and which completely encircles the line, shall be used to identify function of all lines, except lines exposed to excessive heat above 325F (162.8C) and lin
41、es in engine compartments, and fuel tanks or fuel cells where there is a possibility of the tape being drawn into the engine intake or fuel screen. Tapes used to identify function shall be color coded in accordance with 5.1.1.1; geometric symbols shall be printed thereon as specified in 5.1.2, and l
42、ettering shall be applied as specified in 5.1.3.1. Where the configuration does not permit application of tape, alternate identification methods such as tags on paint as described in this specification may be used. 4.2.2 Tags. The following lines should be identified by securely attaching applicable
43、 bands (see NAS 1411) or tags to the line as shown in figures 1, or 6. a. Stainless steel lines 4 inches and larger in diameter. b. Lines exposed to excessive heat above 325F (162.8C). c. Cold lines, except that types may be used on cold lines as long as adhesion can be maintained at cryogenic tempe
44、ratures and the lettering can be read from normal point of operation. Tags may be labeled on one side only. No geometric symbols need be painted on tags or bands. Tags and bands shall be impression stamped or electro-etched to show function, pressure if applicable, direction of flow if applicable, a
45、nd applicable hazard(s), and need not be colored (see figures 1 and 6). 4.2.3 Paint. Suitable paints similar in hue, value, and chroma in accordance with FED-STD-595, and to the requirements specified in 5.1.1, and which have no deleterious effect upon the lines, shall be used for identification of:
46、 a. Lines in engine compartments where there is a possibility of tapes, tags, or bands being drawn into the engine intake. b. Lines 4 inches or larger in diameter except cold lines, hot lines, stainless steel lines, and lines in an oily environment. 4.2.4 Painted identification group. Whenever possi
47、ble the painted identification group shall consist of (a) painted letters identifying the specific function, subsidiary function when required, working pressure if applicable, and the hazard(s) present, (b) colors denoting functions, and (c) a painted arrow indicating direction of flow if applicable
48、. Stencils are suitable for paint application. Geometric symbols need not be used where identification is accomplished with paints. Carbon steel line and other lines requiring a protective finish will, in addition, be painted white, Color No. 17875, FED-STD-595, as background for the identification group. The white painted background will exceed the width of the identification group beyond both ends of the identification or to t
