Mercaptan Dosing ยท CFR 192.625 Compliance ยท Fade Analysis
1 lb/MMCF โ 4 ppm โ 0.25 gr S/100 scf
Understand CFR 192.625 requirements, mercaptan properties, and odorization best practices
| Parameter | Value | Notes |
|---|---|---|
| 1/5 LEL (Methane) | 1.0% in air | Detection requirement |
| TBM Density | 6.68 lb/gal | @ 60ยฐF |
| THT Density | 8.34 lb/gal | @ 60ยฐF |
| Min Detectable | ~0.125 lb/MMCF | ~0.5 ppm TBM |
| Typical Target | 0.25โ0.5 lb/MMCF | 1โ2 ppm |
Odorant chemistry, detection limits, regulatory compliance, and system design
It calculates natural gas odorant injection rates for TBM/THT mercaptan dosing, concentration conversion, and fade analysis.
It verifies compliance with 49 CFR 192.625 for natural gas odorization requirements.
Yes, it includes fade analysis to account for odorant absorption in new or recently maintained pipelines.