Water purifier; (HS: 8421); (ICS: 91.140.70)
National Standard of the P.R.C., Minimum Allowable Value of Water Efficiency and Water Efficiency Grades for Water Purifier (8 page(s), in Chinese)
This document specifies water efficiency minimum allowable values and grades, technical requirements and test methods for water purifier.
This document is applicable to small-scale water purifiers which use municipal tap water or other centralized water supply as raw water and reverse osmosis or nanofiltration membranes as the main purification element for households or similar places.
This document is not applicable to large-scale water purifiers with length or width or height ≥ 2000 mm, weight ≥ 100 kg, and water purification flow ≥ 3 L / min.