MIL-STD-101 Color Code For Pipelines And For Compressed Gas CylindersThis 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.

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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/.

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