Different instruments
Blue, green and turquoise are Ministry water-efficiency certificate levels under the Turkish regulation. TS ISO 46001 concerns water-efficiency management systems. Annex 4 defers its criterion to green renewal, while Annex 5 includes it in the turquoise criteria. The NACE turquoise table additionally refers to TS EN ISO 14046 for water footprint.
Measurement is an input
Meter and automation records can support management and reporting. They are not themselves an ISO certificate. Obtain the full current standard from its authorised source and verify the certification scope with the relevant body. International terminology references do not establish Atlas product approvals.
Source: Türkiye Water Efficiency Regulation — official Turkish PDF · Articles 4–9 / Annexes 1–5