# CDL: Berthelot Indophenol, Urea Nitrogen

- Device class: 2; regulation: 21 CFR 862.1770; FDA's rule: 510(k) required
- FDA decisions: 16
- Recalls: 1 (0 Class I)
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026; MAUDE to Sep 30, 2026

## Decisions per year (last 10)
- 1978: 2
- 1979: 1
- 1980: 2
- 1981: 1
- 1982: 1
- 1983: 1
- 1986: 3
- 1987: 2
- 1989: 1
- 1990: 1

## Most-cited predicates

Source page: https://510kreport.com/product-code/CDL
Data by year (CSV): https://510kreport.com/product-code/CDL.csv