GB/T 39756-2021 in English

Analysis of the core content of the standard

This standard puts forward clear requirements for the system architecture of the scanning voice reader: the main chassis must integrate core components such as the scanner, motherboard, and hard disk, and the assembly of all parts must comply with the GB 4706.1—2005 electrical appliance safety specification.

Comparison of key technical indicators

Mechanical strength test requirements

Implementation suggestions

1. When purchasing, check whether the equipment has basic insulation 1000V certification
2. Regularly use standard test paper to verify the recognition accuracy attenuation
3. The storage environment needs to maintain a relative humidity of ≤85%@30℃

Technology evolution analysis

For the first time, this standard increases the hard disk capacity requirement of scanning voice reader to 100GB, reflecting the growth trend of digital reading resources. At the same time, the new U 94 flame retardant standard is added to reflect the upgrade of the safety design concept.