This standard specifies the terms and definitions and test methods of household and similar drinking water purifier (hereinafter referred to as "water purifier").
This standard is applicable to the performance test of household and similar drinking water purifier.
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB 4706.1 Household and Similar Electrical Appliances - Safety Part 1: General Requirements
GB 5749 Standards for Drinking Water Quality
GB/T 5750 (All Parts) Standard Examination Methods for Drinking Water
GB/T 6682 Water for Analytical Laboratory Use - Specification and Test Methods
GB/T 17218 Hygienic Safety Evaluation for Chemicals Used in Drinking Water Treatment
GB/T 17219 Standard for Safety Evaluation of Equipment and Protective Materials in Drinking Water System
GB/T 22090 Cold and Hot Water Dispenser
3 Terms and Definitions
For the purposes of this document, the following terms and definitions apply.
3.1
average influent challenge level
the average concentration of certain substance led into water supply system during purification test
3.2
contaminant liquid
the solution with specific concentration and containing one or several contaminant(s) during purification test
3.3
purification efficiency
the ratio of purified volume by water purifier to contaminant liquid volume during purification test, expressed in %
3.4
concentrated water
the general term for raw water treated by water purifier used for purposes other than domestic drinking water
4 Test Method
4.1 Test Conditions and Equipment
4.1.1 General test conditions
Unless otherwise specified, the test shall be carried out under the following conditions:
GB/T 35937-2018 The following standards are cited：
