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J. J. Keller protects people and the businesses they run. You can trust our expertise across a wide range of subjects relating to labor, transportation, environmental, and worker safety. Our deep knowledge of federal and state agencies is built on a strong foundation of more than 100 editors and consultants and 70+ years of regulatory compliance experience.

Company & Careers

J. J. Keller protects people and the businesses they run. You can trust our expertise across a wide range of subjects relating to labor, transportation, environmental, and worker safety. Our deep knowledge of federal and state agencies is built on a strong foundation of more than 100 editors and consultants and 70+ years of regulatory compliance experience.

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  • Method 9 (M9) is the visual determination of the opacity of emissions from stationary sources.
  • A single Method 9 reading requires a total of 24 visible emissions observations taken at 15-second intervals, for a total of six minutes.
  • Area for temperature, wind direction, and wind speed
  • Required under 40 CFR 63.11517 (c)
  • English
  • 8-1/2" x 11"
  • 25 per pad
  • Made in the USA

Size: 8.5" x 11"

Format: Pad

Compliance Topic: Jobsite Safety

Language: English

Sold As: 25 Per Pad