Taking advantage of the questionnaire of 482 food manufacturing enterprises,this paper analyses the influence on cost and benefit of the enterprises that HACCP certification may have brought,and elaborates the factors that influence the firms adopting HACCP system,and thoroughly discusses the effi- ciency of HACCP on the firms economic performance.

Error district of the OHSMS's authentication and examination in the order implement by the certificate authority;

Counseling on Sticky Issues on the Authentication of GSP;

Ecological textile authentication and critical points thereof;

International certification of electric welding machines and selective use of critical components;

Study in Standards and Certification of Computer Power Sources Used in Medical Equipments;

New tasks facing in quality certification,attestation and accreditation for an Electric Power Research Institute;

Analysis on Measurement Management System Accreditation at Meigang;

Social Regulation System of American Private Education: Accreditation;

Research on the Re-accreditation of Teacher s Qualification;

Discussion on the Quality Certificate System for Petreleum Enterprise;

Establishes and Certificates Quality Management System about Corporation;

Proceed Forest Certificate to Develop ecotype-centered of Hainan Province;