Method 9 - Visual Opacity
Do you have questions about a Test Method, Performance Specification or Source Category? Find the EMC contact for your question in the EMC Directory.
Supporting Information
- Visible Emissions Field Manual (PDF) (48 pp, 4 MB)
- Visible Emissions Evaluation Procedures Course (PDF) (176 pp, 9 MB)
- Collaborative Study (PDF)
- Optical Properties and Visual Effects of Smoke Stack Plumes (PDF)
- Section 3.12 of the QA Handbook, Volume III (PDF) (63 pp, 6 MB)
- Visible Emissions Certification Program Evaluation Form (PDF) (17 pp, 30 K)
- Self-Audit Guide for Visible Emissions Certification Programs (PDF) (34 pp, 2 MB)
- Quality Assurance Guideline for Visible Emissions Training (PDF)
- Smoke Generator Troubleshooting (PDF) (23 pp, 230 K)
- Guidelines for Evaluation of Visible Emissions (PDF)
- Guidelines for Quality Assurance Program for Visible Emissions (PDF)
- Visible Emissions Program Operations Manual (PDF)
- Instructions for Visible Emissions Observation Form (PDF) (22 pp, 1 MB)
Method and FAQ
- Method 9 Visual determination of the opacity of emissions from stationary sources 8-3-2017 (PDF) (8 pp, 436 K)
CFR Promulgated Test Method 9 Visual determination of the opacity of emissions from stationary sources.
- Frequently Asked Questions (FAQs) for Method 9 (PDF) (1 pg, 146 K)