Generally based on customer standards, if customers do not have standards to refer to, will refer to the same industry standards.

The appearance of the product reliability and tolerance test generally refers to salt spray test, high and low temperature test, wear resistance test, hardness test, artificial sweat test and so on.

Environmental requirements are:

"SONY SS-00259 parts and components contained in the management standards for the restricted use of substances";

ROHS2.0 (2011/65/EU): the use of certain hazardous substances in electrical and electronic equipment requires limited instruction.

EU REACH (Registration, Evaluation, Authorisation and Restriction of Chemicals) "Registration, Assessment, Authorization and Control of Chemicals" Regulation (EC No. 1907/2006);