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  2. Utility location - Wikipedia

    en.wikipedia.org/wiki/Utility_location

    Utility location markers for a fire hydrant, a drinking water line and a natural gas line in Germany. In Germany, the colors used for temporary marking of underground utilities are not standardized like in other countries. However, permanent marker signs are used for utilities like hydrants, drinking water lines and natural gas lines.

  3. Pipe marking - Wikipedia

    en.wikipedia.org/wiki/Pipe_marking

    Example of pipe marking through colors and symbols (arrows) to indicated pipe contents (colors) and flow direction (arrows). Pipe marking on a natural gas pipe In the process industry , chemical industry , manufacturing industry , and other commercial and industrial contexts, pipe marking is used to identify the contents, properties and flow ...

  4. CC41 - Wikipedia

    en.wikipedia.org/wiki/CC41

    The CC41 symbol, also known as the Utility mark, was an identifying mark of products produced and sold as part of the British Government's Second World War Utility Clothing Scheme. The CC41 Utility mark indicated that the item met the standards of the Government's Utility regulations, and could be sold as a product of the Utility Scheme. [ 1 ]

  5. ISO 7010 - Wikipedia

    en.wikipedia.org/wiki/ISO_7010

    The standard was published in October 2003, splitting off from ISO 3864:1984, which set out design standards and colors of safety signage and merging ISO 6309:1987, Fire protection - Safety signs to create a unique and distinct standard for safety symbols.

  6. Engineering drawing abbreviations and symbols - Wikipedia

    en.wikipedia.org/wiki/Engineering_drawing...

    It is numbered with a stylized flag symbol surrounding the number (or sometimes a delta symbol). A general note applies generally and is not called out with flags. 2. Find number: "FN" meaning "find number" refers to the ordinal number that gives an ID tag to one of the constituents in a parts list (list of materials, bill of materials).

  7. ISO 3864 - Wikipedia

    en.wikipedia.org/wiki/ISO_3864

    ISO 3864-3:2012 Part 3: Design principles for graphical symbols for use in safety signs [3] ISO 3864-4:2011 Part 4: Colorimetric and photometric properties of safety sign materials [ 4 ] Part 1 explains how to layout the components of safety signage, dictate the color scheme and sizing information.

  8. If You See Paint on Trees, This Is What It Means - AOL

    www.aol.com/lifestyle/see-paint-trees-means...

    There, they switch up marking colors every year. “There’s only really like half a dozen colors that stand out on the tree—bright colors like blue, red, yellow, and orange,” says Fisher ...

  9. GHS hazard pictograms - Wikipedia

    en.wikipedia.org/wiki/GHS_hazard_pictograms

    The two sets of pictograms use the same symbols for the same hazards, although certain symbols are not required for transport pictograms. Transport pictograms come in a wider variety of colors and may contain additional information such as a subcategory number.