This document specifies the term definitions, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of high-efficiency noise reduction mixed-flow fans. This document is applicable to the production and inspection of high-efficiency noise-reducing mixed-flow fans.
T/QGCML 1617-2023 history
2023T/QGCML 1617-2023 Technical Specifications for High Efficiency Noise Reduction Mixed Flow Fans