T/UNP 21-2022 Aerosol nozzle
Main technical content: 1 Scope 2 Normative reference documents 3 Terms and definitions 4 Technical requirements 4.1 General requirements 4.2 Materials 4.3 Appearance 4.4 Structure and process 4.5 Water pressure resistance performance 4.6 Hydraulic performance 4.7 Sealing performance 5 Test methods 5.1 Test conditions 5.2 Appearance 5.3 Structure and process inspection 5.4 Water pressure resistance test 5.5 Flow uniformity test 5.6 Pressure and flow rate relationship test 5.7 Spray water quantity distribution characteristics test 5.8 Sealing performance test 6 Inspection rules 6.1 Inspection categories 6.2 Batch and sampling 6.3 Judging rules 7 Marking, transportation, and storage 7.1 Marking 7.2 Transportation 7.3 Storage