49 CFR 172 Special Provision B44 (B-Codes)
These provisions apply only to bulk packagings. Except as otherwise provided in this subchapter, these special provisions do not apply to UN portable tanks or IBCs.
| Code | B44 |
|---|---|
| Description | All parts of valves and safety relief devices in contact with lading must be of a material which will not cause formation of acetylides. |
| HazMat with this Code |