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Basic identification colours and warning symbols identify the pipe contents and any hazards. [14] Pipe markers consists of 4 basic elements: Basic identification (background) colour, see table below, e.g. yellow for hazardous substance; Name of the substance/content, e.g. NATURAL GAS; Flow direction indicator arrows, ⇒; Warning symbols, e.g ...
Materials may react violently with water or form peroxides upon exposure to air (e.g., potassium, sodium). 1. Materials that are normally stable but can become unstable (self-react) at high temperatures and pressures. Materials may react non-violently with water or undergo hazardous polymerization in the absence of inhibitors (e.g., propene). 0.
DIN Standard DIN 47100 regulated the color-coding for the identification of cores in telecommunication cables. The standard was withdrawn without a replacement in November 1998, but remains in widespread use by cable manufacturers. The isolations of the several wires in a cable are either solidly colored in one color, or striped lengthwise in ...
Hazardous Materials Class 4.3 : Dangerous when Wet 4.3 Dangerous when Wet : Solid substances that emit a flammable gas when wet or react violently with water ( sodium , calcium , potassium , calcium carbide ).
Recycling codes on products. Recycling codes are used to identify the materials out of which the item is made, to facilitate easier recycling process.The presence on an item of a recycling code, a chasing arrows logo, or a resin code, is not an automatic indicator that a material is recyclable; it is an explanation of what the item is made of.
"NFPA 704: Standard System for the Identification of the Hazards of Materials for Emergency Response" is a standard maintained by the U.S.-based National Fire Protection Association. First "tentatively adopted as a guide" in 1960, [ 1 ] and revised several times since then, it defines the " Safety Square " or " Fire Diamond " which is used to ...
The international standard IEC 60446 Basic and safety principles for man-machine interface, marking and identification - Identification of equipment terminals, conductor terminations and conductors was a standard published by the International Electrotechnical Commission (IEC) that defined basic safety principles for identifying electrical conductors by colours or numerals, for example in ...
This document provide guidelines for color codes to indicate severity of hazards in public warnings. There are many different systems are already in use, such as colour state of meteorological condition or former Homeland Security Advisory System , and the standard is intended to be an approach to eliminate confusion due to such differences.