ISO 9509:1989

For ISO 9509:1989, item title is Water quality — Method for assessing the inhibition of nitrification of activated sludge micro-organisms by chemicals and waste waters; status code is 9599; successor is ISO 9509:2006; withdrawn / published date is 1989-10-12, recorded from its source on 2026-08-05.

Identifier: ISO 9509:1989 verified
Item title: Water quality — Method for assessing the inhibition of nitrification of activated sludge micro-organisms by chemicals and waste waters verified
Status code: 9599 verified
Successor: ISO 9509:2006
Withdrawn / published date: 1989-10-12 verified

Sourceisopublicstorageprod.blob.core.windows.net

Verified2026-08-05

Review by2027-02-01

DatasetWithdrawn and superseded ISO standards

What the source says

17241,IS,,ISO 9509:1989,Water quality — Method for assessing the inhibition of nitrification of activated sludge micro-organisms by chemicals and waste waters,Qualité de l'eau — Méthode pour l'évaluation de l'effet inhibiteur sur la nitrification par des micro-organismes de boues activées par des produits chimiques ou des eaux résiduaires,1989-10-12,1,['13.060.70'],ISO/TC 147/SC 5,9599,,[34812],"['en','fr']",6,

— isopublicstorageprod.blob.core.windows.net, retrieved 2026-08-05

Source

isopublicstorageprod.blob.core.windows.nethttps://isopublicstorageprod.blob.core.windows.net/opendata/_latest/iso_deliverables_metadata/csv/iso_deliverables_metadata.csv

Last verified against source: 2026-08-05. Due for re-check by 2027-02-01. This page as Markdown · OKF bundle · full dataset as JSON.