# K970666: Liquicheck Urine Toxicology Negative Control

- Pathway: 510(k) (Traditional)
- Applicant: Bio-Rad
- Decided: Mar 10, 1997 after 14 days
- Product code: DIF (Drug Mixture Control Materials)
- Device class: 1
- Regulation: 21 CFR 862.3280
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
4 later devices descend from it; 3 cite it directly.
0 of 5 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- None. FDA has not posted a summary or statement for it, so its predicates are not known.

## Most influential descendants
- K012999: Triage Tox Drug Screen Controls, Catalog #94001 (2001), 2 descendants of its own
- K050037: Triage Tox Drug Screen Controls (2005), 1 descendant of its own
- K060788: Triage Tox Drug Screen Control Level 1 Model 94413 and Level 2 Model 94414 (2006), 0 descendants of its own
- K013002: Triage Tox Drug Screen Calibration Verification Controls, Catalog #94002 (2001), 0 descendants of its own

Source page: https://510kreport.com/device/K970666
Methodology: https://510kreport.com/methodology