What are the requirements for smoke school visible emissions opacity certification?
Whitlow Enterprises Certifications state that you met the requirements of EPA Method 9 as specified in 40 CFR 60 Appendix A . These certificates are valid for 6 months after the certification date. The certification date is the day you took the smoke school certification test. To be certified in Method 9, you have to pass a run of 50 smoke readings of random smoke opacity levels of zero to 100% in 5% increments. A run consists of 25 white smoke readings and 25 black smoke readings that are recorded consecutively. Here are the rules: No reading my be off by more than 15% white smoke– an average error rate of 7.5% for 25 plumes black smoke– an average error rate of 7.5% for 25 plumes I will cover the details of what is required before each test. Essentially, you can not miss even one of the 50 readings by more than 15%. After each test each attendee shall turn in the original copy (yellow sheet) of the carbon-less test paper. Then you will grade the white copy of the test to see if you
