On May 24, 2022, the Secretariat of the Household Water Treatment Equipment Sub-Technical Committee of the National Household Appliance Standardization Technical Committee held the third meeting of the drafting working group for the revision of the national standard GB/T30306 "Household and Similar Water Treatment Cores" online. Representatives of 41 member units of the standard drafting working group and related production enterprises attended the meeting, and the specific list is shown in Annex 1. The meeting discussed the revised draft of the national standard GB/T30306 "Inner Cores for Household and Similar Water Treatment". Combined with the revised draft of the second meeting submitted by the standard drafting working group, the meeting discussed the definition, scope, classification and naming, and requirements of the product. The opinions of the meeting are as follows: 1. Modify GB8538 in the normative reference document to GB/T8538. 2. Modify the terms and definitions, and add the definitions of microfiltration (membrane) filter element, mineralization, electrodialysis, and rated mineralized water volume; Delete the definitions of reverse osmosis membrane, nanofiltration membrane and ultrafiltration membrane specified in the GB/T20103 standard; Adjusted the order of some term definitions. 3. Delete the classified materials and categories in Classification and Naming, and modify the expression of the second naming method. 4. Requirements 1) Adjust the requirements of 5.4.3 the hygiene and safety index requirements of the integrated filter element. Delete the requirements of Table 3 in 5.4.3 a) and declare the indicator as a stand-alone clause 5.4.4, and include bisphenol A and phthalates as the claim indicator. 2) Adjust the expression of plastic degradation performance requirements. 3) Adjust the water purification and water yield requirements of the reverse osmosis (membrane) filter element and nanofiltration (membrane) filter element to 5.7.1 and 5.7.2. 4) The limit ＆#118alue of the mineral index of the effluent water quality is not required in the mineralization filter index, and the stability evaluation of the added mineral is carried out, and the concentration of added minerals should be within the declared range. 5. Test method 1) Adjust the expression of water purification pressure test and cycle pressure test. 2) The health and safety test of the integrated filter element is added 6.4.4 The test method of the declared index, and the details of the test method will be fed back by the enterprise after the processing opinion. It also standardizes the expression of GB/T5750. 3) Adjust the water flow rate test method to the test method for each index of purification capacity. 4) Adjust the experimental methods of the water purification water yield test of the reverse osmosis (membrane) filter element and the water purification water yield test of the nanofiltration (membrane) filter element to 6.7.1 and 6.7.2. 5) The test method of the mineralization filter element is increased: (1) When the mineral concentration of any time exceeds the declared range, the test will be stopped. (2) The results include the rated total water purification, water flow, working pressure, mineralization index and range. 6. Inspection rules The factory inspection deletes the structure, health and safety inspection items. 7. Mark 1) Identification requirements to remove working pressure 2) Increase performance identification requirements according to standard indicators, and explain the scope of the claim. 8. Packaging 1) The contents of the product packaging box are increased and the overall dimensions and gross weight of the packaging box are deleted. 2) Modify the content of the technical documents that should be attached to the packing box. 9. Remove the ceramic filter element from Appendix A operating mode. 10. Appendix C adds that when only the reverse osmosis (membrane) filter element and nanofiltration (membrane) filter element are tested, c) operation content can not be carried out. 11. Appendix E 1) Delete the power supply requirements in the test conditions, and replace the pretreatment system as auxiliary components (such as pre-filter elements, post-filter elements, pumps, etc.) 2) The validity of the results is changed to: when the data results of water purification water yield are reported, the information of the pretreatment system (when applicable), the initial water purification flow, the initial wastewater flow, the working pressure and the rated total water purification should be included. 12. Appendix F The test conditions delete the power supply requirements, and the replacement of the pretreatment system is expressed as auxiliary components (such as pre-filter elements, post-filter elements, pumps, etc.) 13. Appendix G 1) The working pressure of the enterprise declaration is changed to the nominal working pressure of the enterprise. 2) In the test method, the rated total net water is changed to the rated periodic water production. 14. Appendix H modifies the list of parts for material traceability testing. At the meeting, the following arrangements were made for the next step: 1. The meeting minutes, address list, draft standards, and opinion summary table will be sent to the conference delegates before May 27. 2. Each unit has until June 10 to send its comments to the Secretariat. 3. Sort out the opinions and revise the standard manuscript before 6.20, and send it to the working group for confirmation. 4. A draft for comments will be formed before 6.30. Appendix 1 List of participating companies

Appendix 1 List of participating enterprises: 1 Household Water Treatment Equipment Sub-Technical Committee 2 China Household Electrical Appliances Research Institute 3 Shenzhen Angel Drinking Water Industry Group Co., Ltd. 4 Weisswasser Environmental Technology (Jiaxing) Co., Ltd. 5 CCIC Physical and Chemical Testing Co., Ltd. 6 Foshan Yunmi Electrical Technology Co., Ltd. 7 Yitai (Nanjing) Environmental Protection Technology Co., Ltd. 8 Zhejiang Supor Kitchen and Bathroom Electrical Appliance Co., Ltd. 9 Guangzhou Institute of Microbiology Co., Ltd. 10 Guangdong Institute of Microbiology (Guangdong Microbial Analysis and Testing Center) 11 Wuhan Zhongdi Shuishi Environmental Protection Technology Co., Ltd. 12 Beijing Bishui Water Purification Technology Co., Ltd. 13 Xiamen Baiwu Water Technology Co., Ltd. 14 Foshan Shunde Apollo Environmental Protection Equipment Co., Ltd. 15 Xiaomi Communication Technology Co., Ltd. 16 Qingdao Haier Strauss Water Equipment Co., Ltd. 17 Brirana Water Purification System (Shanghai) Co., Ltd. 18 Lake Electric Co., Ltd. 19 Infinitus (China) Co., Ltd. 20 Zhejiang Lonsid Health Drinking Water Equipment Co., Ltd. 21 Zhejiang Frees Testing Technology Co., Ltd. 22 Zhejiang Aibot Environmental Protection Technology Co., Ltd. 23 Zhejiang Jubei Technology Group Co., Ltd. 24 Jingshikang (Suzhou) Environmental Technology Co., Ltd. 25 Zhuhai Gree Electric Appliance Co., Ltd. 26 Suzhou Pentair Water Treatment Co., Ltd. 27 Lianyungang Quality and Technology Comprehensive Inspection and Testing Center 28 Anhui Zhihong Purification Technology Co., Ltd. 29 Shenzhen Amart Technology Co., Ltd. 30 Zhejiang Qinyuan Water Treatment Technology Co., Ltd. 31 Foshan Midea Qinghu Water Purification Equipment Co., Ltd. 32 Iosmith (China) Environmental Electrical Appliance Co., Ltd. 33 Jiangsu Pushida Environmental Protection Technology Co., Ltd. 34 Kaineng Health Technology Group Co., Ltd. 35 Guangzhou Kangrui Environmental Protection Technology Co., Ltd. 36 Foshan McRomei Filter Equipment Manufacturing Co., Ltd. 37 Shenzhen Yihaoxin Environmental Protection Technology Co., Ltd. 38 Jiangsu Meiya Keze Filtration Technology Co., Ltd. 39 Core Environmental Technology (Shenzhen) Co., Ltd. 40 Guangzhou Kangrui Environmental Protection Technology Co., Ltd. 41 Guangdong Bili Drinking Water Equipment Co., Ltd