everyspec.com MIL---STD---101C Color Code System for Piping and Cylinders Manual PDF (EN)

Downloaded from https://www.everyspec.com MIL---STD---101C FORWARD 1. This standard is approved for use by all Departments and Agencies of the Department of Defense (DoD). 2. This standard covers a common color code system for the identification of materials in piping systems and contained in compressed gas cylinders, and to facilitate the segregation of these cylinders at depots. The previous revision to MIL---STD---101 also covered medical gas cylinders. Medical gases have been removed from this standard and are covered in NATO Standard AMedP---53.

The use of this standard will promote greater safety and will lessen the chances of error, confusion, or inaction in times of emergency by providing, along with hazard markings, a uniform color code to quickly warn personnel of outstanding hazards inherent in the materials involved. 3. The major changes from the previous revision of this standard are as follows: (a) Addition of materials to the table of color codes for compressed gases to reflect as- signments made since the last time the standard was revised.

(b) Removal of medical gases from the table of color codes for compressed gases and from figure 2 to eliminate a conflict between this standard and NATO Standardization Agree- ment 2121. (c) Replacement of ANSI Z48.1 with the Compressed Gas Association standard CGA C---7 for marking of commercial---owned cylinders. (d) Clarification that adherence to MIL---STD---101 does not exempt the compressed gas cylinder from required marking and stamping requirements in Department of Transporta- tion regulations. 4. Comments, suggestions, or questions on this document should be addressed to: U.S. Army Edgewood Chemical Biological Center, ATTN:

RDCB---DEA---S, 5183 Blackhawk Road, APG, MD 21010---5424 or emailed to usarmy.APG.ecbc.list.specs-team@mail.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/. ii

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Downloaded from https://www.everyspec.com MIL---STD---101C CONTENTS PARAGRAPH PAGE FORWARD ii 1. SCOPE 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.1 Scope 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.2 Applicability 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.3 Method 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2. APPLICABLE DOCUMENTS 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.1 General 1 . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . 2.2 Government documents 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.2.1 Specifications, standards, and handbooks 1 . . . . . . . . . . . . . . . . . . . . 2.2.2 Other Government documents, drawings and publications 2 . . . . . . 2.3 Non---Government publication 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.4 Order of precedence 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3. DEFINITIONS 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4. GENERAL REQUIREMENTS 3 . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . 4.1 Colors 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.2 Warning colors 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.3 Colors having no significant meaning 4 . . . . . . . . . . . . . . . . . . . . . . . 5. DETAILED REQUIREMENTS 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.1 Piping system identification 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.1.1 Exact identification 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.1.2 Use of colors 5 . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . 5.1.3 Primary color warnings 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.1.3.1 Use and application 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.1.3.2 Location on piping systems 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.1.4 Arrows and secondary color warnings 5 . . . . . . . . . . . . . . . . . . . . . . . 5.1.5 Classification of material in piping systems 7 . . . . . . . . . . . . . . . . . . . 5.2 Cylinder identification 16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.2.1 Assignment of colors 16 . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . 5.2.2 Exact identification 16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.2.3 Use of colors 16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.2.3.1 Color warnings 16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.2.3.2 Cylinder color bands 16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.2.4 Painting of cylinders 17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.2.5 Additional information 25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii

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Downloaded from https://www.everyspec.com MIL---STD---101C PARAGRAPH PAGE 5.2.5.1 Commercial---owned cylinders 25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.2.5.2 Decalcomanias 25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.2.5.3 Shatterproof designation 25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.2.5.4 Service ownership 25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.2.5.5 DOT marking 25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6. NOTES 25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . 6.1 Intended use 25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.2 Acquisition requirements 25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.3 Subject term (key word) listing 26 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.4 Color chips 26 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.5 Changes from previous issues 26 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FIGURE 1. Piping systems 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2. Bottle type cylinders 17 . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . 3. Tube type cylinders 18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TABLE I. Size of stencil letters 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . II. Classification of materials in piping systems 7 . . . . . . . . . . . . . . . . . . . III. Titles and color codes for compressed gas cylinders 19 . . . . . . . . . . . . iv

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Downloaded from https://www.everyspec.com MIL---STD---101C 1. SCOPE 1.1 Scope . This standard establishes a common color code for visual warnings to accompany the written identification of materials covered in piping systems and contained in compressed gas cylinders, and to facilitate the segregation of these cylinders at depots. This standard does not define the manner or conditions under which these materials may be used safely. 1.2 Applicability.

This standard is applicable to all ground based piping systems and to all compressed gas cylinders owned by or procured for the Department of Defense including type D one---ton containers (Department of Transportation Specification 106A500), but excludes cylinders containing medical gases. The applicability of this standard to industry piping systems and commercial---owned cylinders (see 5.2.5.1) is encouraged. Requirements specified herein are optional for hose lines and nozzles, ship installations, equipment intended for operations in forward area facilities, steam plants, and hydroelectric plants.

The color coding of medical gas cylinders is covered by North Atlantic Treaty Organization Standard AMedP---53. The identifi- cation method for bulk petroleum product systems is covered in MIL---STD---161. The identifi- cation of pipe lines for aircraft, missiles, and space vehicles is covered in MIL---STD---1247. The color coding for containers of liquid propellants is not covered by this standard. 1.3 . Method. This standard establishes, defines, and assigns a color for recognition to each of six classes of materials. Five classes have been selected to represent universally recognized types of hazards involved in the handling of dangerous gases and liquids.

The sixth class is as- signed for exclusive use of fire protection materials and equipment. This standard requires the application of the color warnings in a distinctive manner, as a visual aid and supplement to writ- ten identification. 2. APPLICABLE DOCUMENTS 2.1 General. The documents listed in this section are specified in sections 3 or 4 of this specification. This section does not include documents cited in other sections of this specifica- tion 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 they must meet all specified requirements of documents cited in sections 3 or 4 of this specification, whether or not they are listed. 2.2 Government documents. 2.2.1 Government documents, drawings, and publications. The following Government 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 solicita- tion or contract. 1

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