HazmatTable Guide
How Do I Find the RQ for a Chemical?
The fastest method is to search the hazardous substance by its regulatory or chemical name and confirm the listed quantity in Appendix A.
Short answer
The fastest method is to search the hazardous substance by its regulatory or chemical name and confirm the listed quantity in Appendix A.
The fastest method is to search the hazardous substance by its regulatory or chemical name and confirm the listed quantity in Appendix A.
Why this matters
The official table can be difficult to use because names, synonyms, waste entries and radionuclides are spread across a long appendix. HazmatTable turns those records into searchable data while keeping a link back to the source.
A better workflow
Try the exact chemical name first. If you do not find it, search a synonym or partial name. Then verify the record, units, notes and any special limitation before using the result.
Check your material in HazmatTable
Search the table, compare the listed RQ, and see the source in seconds.
What HazmatTable helps with
- Search a chemical, synonym, waste code or radionuclide.
- See the listed RQ and units without scanning a long PDF.
- Preserve important Appendix A footnotes and source context.
- Compare an entered package quantity with the listed RQ.
- Continue into related shipping and classification guides.
Important: HazmatTable is a reference and workflow tool, not a legal certification of a shipment. The shipper must verify the current HMR and the actual material, quantity, packaging and mode.
Authoritative references: 49 CFR §172.101 / Appendix A and PHMSA hazmat guidance. PHMSA Hazmat · Appendix A source used for this database