As early as the end of 2009, when China's RoHS launched the "National Voluntary Certification" pilot activity, XRF used for RoHS screening and testing was included in the skill level assessment of the Ministry of Industry and Information Technology and Ministry of Human Resources and Social Security, and the skill subject was "Electronic Component Inspector (XRF)", and the primary and intermediate skill qualification assessments were initially set up.
Later, in order to cater to the Chinese mainland market, some terminal brand customers conveyed this requirement to the supply chain, which belongs to customization requirements and does not belong to the mandatory skill assessment within the industry or the country.
Voluntary training for manufacturers can generally be used in the basic operation of this equipment, which can let operators master the basic operation process and understand the theory and spectrum analysis application, but it is still obviously insufficient.
The above may be helpful to your question. If you want to obtain relevant qualification approval, you can actually consult the equipment manufacturer. They know which institution can provide such qualification certificate, or continue to ask your questions. I will answer your questions when I have time.