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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Частина мови: noun
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Галузь/тема: Pollution control
Category: Air pollution
Company: ARB
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тым төмен газ бөлу көлігі

Pollution control; Air pollution

Vehicles that meet the ARB ultra-low emission standards. These emission limits are between those for LEVs and ZEVs. For more information, please view our DriveClean website.

икемді отын көлігі

Pollution control; Air pollution

Vehicles that can use a combination of fuels such as alcohol fuel and unleaded gasoline.

аймақ көздері

Pollution control; Air pollution

Those sources for which a methodology is used to estimate emissions. This can include area-wide, mobile and natural sources, and also groups of stationary sources (such as dry ...

бөліну деңгейі

Pollution control; Air pollution

The weight of a pollutant emitted per unit of time (e. G. , tons / year).

пайдаланылған газ шығармайтын көлік (ПГШК)

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.

көмірсутек

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 ...