GB/T 42567.5-2025 Chinese PDF (GB /T42567.5-2025) GB/T 23500-2025 boats and internal combustion engines

boats and internal combustion engines - Radio disturbance characteristics - Limits and methods of measurement for the protection of on-board receivers (Chinese: 车辆、船和内燃机 无线电骚扰特性 用于保护车载接收机的限值和测量方法)

4-2025_Chinese: Assembled spectacles - Part 4: Multifocal and power-variation near-vision spectacles (Chinese: 配装眼镜 第4部分：多焦和渐变焦老视成镜)

English versions: GB/T 18910

GB/T 21551

3-2025_Chinese: Information technology - Virtual reality content representation - Part 3: Audio (Chinese: 信息技术 虚拟现实内容表达 第3部分: 音频)

GB/T 42567.5-2025 Chinese PDF (GB /T42567.5-2025) GB/T 23500-2025 boats and internal combustion enginesGB T 42567. 5 2025_Chinese: Reference conditions and procedures for testing industrial and process measurement transmitters Part 5: Specific procedures for flow transmitters (Chinese: 5) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 42567. 5 2025