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APHA color, also referred to as the Hazen scale, and more appropriately as the Platinum Cobalt(Pt/Co) scale, [1] is a color standard named for the American Public Health Association and defined by ASTM D1209. [2]
It is typically carried out by marking piping through labels and color codes. ... Sprinkler Water: A13.1-2007/2015 [4] Meaning Background Color Text Color Example
Water color can reveal physical, chemical and bacteriological conditions. In drinking water, green can indicate copper leaching from copper plumbing and can also represent algae growth. Blue can also indicate copper, or might be caused by syphoning of industrial cleaners in the tank of commodes, commonly known as backflowing.
Most commonly used for non-potable water on farms however can be an outer duct for roadside utilities. Worksafe encourages the use of a 5mm wide or larger colored stripe to indicate the content of the black duct using one of the color codes above. A plain black microduct or 2-pair telephone cable is often used by Chorus for premises drop cables.
Plates for recycled water have a purple background, as well as the RH code, normal potable hydrants are white, with the H code. Road markers or Cat's eyes – Almost exclusively blue, these are placed on one side or the other of the centre line of the road, to indicate on which side of the road the hydrant lies. They are visible for several ...
Properties of water – Physical and chemical properties of pure water Color of water – Water color in different conditions; Water vapor – Gaseous phase of water Vapour pressure of water – Pressure exerted by molecules of water vapor in gaseous form; Steam – Water in the gas phase; Ice – Frozen water: the solid state of water
The Platinum-Cobalt Scale (Pt/Co scale or Apha-Hazen Scale) is a color scale that was introduced in 1892 by chemist Allen Hazen (1869–1930). The index was developed as a way to evaluate pollution levels in waste water. It has since expanded to a common method of comparison of the intensity of yellow-tinted samples.
Number Sample Colour name Description, examples RAL 1000: Green beige: RAL 1001: Beige: RAL 1002: Sand yellow: Vehicles of the Afrika Korps 1941–1943 : RAL 1003: Signal yellow: Latvian Pasažieru vilciens (Vivi) train main livery colour