GB/T 10294, GB/T 10295: Steady state thermal resistance of insulation materials (protective heat plate, heat flow meter method), solid insulation materials, not radiators

T/ZZB 1976-2020 Liquid cooled Radiators for Wind Power Inverters: Product Standard, Performance Inspection Reference GB/T 8446.2 (Old Version 2004, New Projects Prioritize 2022 Version)

Data Center Liquid Cooling Group Standard (T/CAEE): Cold Plate Flow Resistance and Thermal Performance Testing Method, applicable to server cold plates, referring to the ideas of GB/T8446.2, but belongs to industry group standards and is not mandatory by national standards.

International standard

1. ISO 21441:2019: Heat dissipation and pressure loss testing of EGR coolers for road vehicles, simultaneously measuring heat transfer performance and flow resistance, ISO for automotive heat exchangers

2. ASTM D5470: Thermal Interface Material TIM Thermal Resistance Test (gasket, thermal grease, interface thermal resistance, non heat sink flow resistance)

3. ISO 8301: Measurement of steady-state thermal resistance of insulation materials using a heat flux meter (for building insulation boards) ISO

4. JEDEC JESD51 series: Thermal performance testing of electronic devices, packaging, and heat sinks (chip packaging thermal resistance, wind tunnel heat sink thermal resistance, widely used in the electronics industry, without supporting flow resistance main standards, flow resistance is generally tested separately according to wind tunnel/fluid industry methods)

Key points for thermal resistance and flow resistance testing

Key to Thermal Resistance Testing

1. Steady state determination: The temperature change rate is less than the standard specified threshold (GB/T8446.2: Continuous 5-minute temperature fluctuation limit)