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An Alternative to EPA Method 9 AFRL - page 6 / 30

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6 / 30

29 Oct 02

Capt Calidonna

Problems with current method

Seems Subjective

Permitted values currently range from 20-30 %

Humans have difficulty differentiating between 15%; 20%; 25% etc.

Two experts can be correct when one says 20% the other says 30%

Fines based on estimates of opacity may range up to $10,000 per day

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