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Hazard Identification : Each United Nations hazard class (with the exception of class 9) has a distinctive diamond shaped label bearing a pictogram for quick hazard recognition. Figure gives a colour chart for all the classes and subclasses.
Each label has a characteristic background colour. These colours convey the nature of different chemical substances as given below.
Colour Nature
Orange Explosive
Red Flammable
Blue Water reactive
Yellow Oxidiser
White Toxic or Infectious
White or Yellow and White Radioactive
Black and White Corrosive
All the classes are discussed briefly in the following paragraphs.
Explain the Bowman’s capsule - Structures of a Nephron Bowman’s capsule: It contains the primary filtering device of the nephron, that is, glomerulus. It is a double-walled, cu
For water soluble/miscible solid and liquid wastes The familiar method of mopping the waste with plenty of water and running the same into the drainage could be done for miscib
Explain Rhythmicity - Properties of a Beating Heart Not only does the denervated heart continues to beat, it does so remarkably rhythmically. What it means is that the heartbea
Define hydroxyl groups As glycerol has three hydroxyl groups , three molecules of fatty acids may get attached with it at the maximum. When one molecule of fatty
disadvantages of protozoa
Apart from acidic waste, bromine waste is also treated using this method. Exercises Examples: Perchloric acid, sulphuric acid, hydrochloric acid, nitric acid, phosphoric acid
Types of Resource Maps: Generally, several types of maps, based on the type of.resburces, are prepared. Some of these are: Soil Maps showing the types of soil, their comp
Neptune The eigth planet, Neptune, was discoveted in 1846 by astronomer Johann Gottfried Galle. We have already told you the story of its discovery in last. It is so f
find maximum angle for which the light suffers tir at vertical surface
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