Ringelmann chart definition

Ringelmann chart means the chart published and described in the U.S. Bureau of Mines Information Circular 8333.

Ringelmann chart means the chart published and described in the Bureau of Mines, U.S. Department of Interior, Information Circular 8333 (Revision of IC7718) May 1, 1967, or any adaptation thereof which has been approved by the Agency.

Ringelmann chart means the chart described in the U.S. Bureau of Mines, Information Circular No. 8333 and No. 7718, and used for measuring smoke opacity;

Examples of Ringelmann chart in a sentence

• The system was adopted as a British Standard in 1958 and now includes a miniature Ringelmann chart (1969) printed in shades of grey and designed to be held 1.5 m away from the observer’s eye or, in practice, at arms length.

• As dark or darker than the shade des- ignated as No. 2 of the Ringelmann chart, as published by the United States Bureau of Mines; or 2.

• To maintain a stack temperature of 80oC and above, it is important to ensure that the scrubber inlet temperature is not more than 230 oC.According to the Guidance note of Environmental Protection Department of the US, smoke emission from incineration process during normal operations (together with start- up and shut-down) should not appear to be as dark as or darker than Shade 1 on the Ringelmann chart when compared correctly with the Ringelmann chart or an approved device.

• Subject to Section 4.10.5 below, no activity shall result in the emission or discharge, from any source whatever, of any smoke or particulate matter, such as dust, dirt or ash, that may become airborne, with a density greater than that described as No. 1 on the Ringelmann chart, measured at the point of emission into the atmosphere or other point of discharge.

• The operation of the boilers has been controlled by inserting a standard condition which states that the boilers shall be operated so as to give a smoke colour less than or equal to shade number 1 on the Ringelmann chart.

More Definitions of Ringelmann chart

Ringelmann chart means the chart published by the U.S. Bureau of Mines (Information Circular 9333, as amended) which illustrates graduated shades of gray to black for use in determining the light obscuring capability of particulate matter.

Ringelmann chart means the Ringelmann smoke chart with instructions for use as published by the United States bureau of mines in May 1967 and as thereafter amended, information circular 7718.

Ringelmann chart means the Ringelmann Chart published in the United States Review of Mine Information Circular No. 1C8333, (May 1967), as specified in Health and Safety Code section 41701(b).

Ringelmann chart means the Ringelmann scale for grading the density of smoke published by the latest British Standard in BS 2742 series or equivalent Malaysian Standard, or any chart, recorder, indicator, or device for the measurement of smoke density which is approved by the Director-General as the equivalent of the said Ringelmann scale;

Ringelmann chart means the chart published by the U.S. Bureau of Mines that are illustrated graduated shades of gray or black for the use in estimating the capacity of smoke or any air contaminant or emission to obscure light.

Ringelmann chart means that standard published by the United States Bureau of

Ringelmann chart means a chart which is described in the U.S. Bureau of Mines Information Circular 7718, and on which are illustrated graduated shades of grey for use in estimating the light-obscuring capacity of particular smoke. (Ord. 822 §1, 1989)