рингельман кестесі

рингельман кестесі

A series of charts, numbered 0 to 5, that simulate various smoke densities by presenting different percentages of black. A Ringelmann No. 1 is equivalent to 20 percent black; a Ringelmann No. 5 is 100 percent black. They are used for measuring the opacity or equivalent obscuration of smoke arising from stacks and other sources by matching the actual effluent with the various numbers, or densities, indicated by the charts.

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Part of Speech: noun
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Industry/Domain: Pollution control
Category: Air pollution
Company: ARB
Product:
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Pollution control; Air pollution

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Pollution control; Air pollution

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Pollution control; Air pollution

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Pollution control; Air pollution

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Pollution control; Air pollution

Vehicles which produce no emissions from the on-board source of power (e. G. , an electric vehicle). For more information, please go to our zero emission vehicles program website.

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Pollution control; Air pollution

Compounds containing various combinations of hydrogen and carbon atoms. They may be emitted into the air by natural sources (e.g., trees) and as a result of fossil and vegetative ...