20/30/10 standard

What is 20/30/10 standard?

20/30/10 standard meaning in Enviromental Science terminology / glossary / dictionary is:
20 mg/l Biochemical Oxygen Demand (BOD), 30 mg/l Suspended Solids (SS), 10 units of E. coli: the water quality standard for greywater use in toilets, laundry and surface irrigation.

 

reference: https://en.wikipedia.org/wiki/Glossary_of_environmental_science

Tags: