Reference standard
Internal method
Internal method identity
3486
Comment
Method based on AOCS Cd 8-53 (2003)
Parameter
Total volatile nitrogen (TVN)
Reference standard
Internal method
Internal method identity
4538
Object
Clean water, waste water and pool water
Reference standard
NS-EN 27888
Internal method identity
3517
Comment
Replaces ISO 7888:1985
Object
Clean water, Sea water and pool water
Parameter
Determination of turbidity
Reference standard
NS-EN ISO 7027-1
Internal method identity
3503
Comment
Spectophotometry
Quantitative
Object
Clean water, Pool water, Waste water, Liquid sludge
Reference standard
NS-EN ISO 10523
Internal method identity
46257
Object
Pure water, raw water and sea water
Reference standard
NS-EN ISO 7887
Internal method identity
17838