Concept
Formazin Nephelometric Units
| URI | http://vocab.nerc.ac.uk/collection/P06/current/UFNU/ | ||
|---|---|---|---|
| Within Vocab | BODC-approved data storage units | ||
| Alternative Labels | FNU | ||
| Definition | Standardised scale for nephelometric measurement of turbidity calibrated against formazine solutions of different concentration and measured using an 860 nm light (near IR) with a 90 degree detection angle (ISO7027 compliant). | ||
| Date | 2018-04-13T15:17:24 | ||
| Identifier | SDN:P06::UFNU | ||
| Note | accepted | ||
| Has Current Version | 1 | ||
| version | 1 | ||
| Broader | P24:DIMLESS |
[dimensionless] | Mapping: 1742463 |
| Related | P09:TUR6 |
TURBIDITY | Mapping: 1614680 |
P01:TURBAQ02 |
Turbidity of water in the water body by nephelometry using an infrared light source and laboratory calibration against formazin | Mapping: 1474550 | |
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