2) a reasonable choice although the sample, HSE management system audit to cover the seven-level elements (26 secondary elements) and all relevant sector organizations, but it is not required to be audited each department seven elements do not need all on-site audit of the department Yan'an HSE certification, but can not be asked to inspect all relevant records. Therefore Gansu HSE certification, in order to ensure systematic and complete audit is required by a reasonable sample selection carried out the audits. When the audit, the audit identified a representative site should consider the following: a) the internal audit results and reports on-site and overall HSE management system; b) Results of management reviews; maturity c) management system; d) to the organization level of understanding; difference e) field size; Yulin HSE certification _HSE _ China Certified Technology Specialist certification provided by the Chinese Certified Technology Specialist studio. China Certified Technology Specialist studio (www.zgrzzj.cn) strong, credible, in Xi'an consulting, research and other industry has accumulated a large number of loyal customers. The company better work attitude and constantly improve the innovation idea Certified Technology Specialist will lead China into the brilliant and you work for a better future!