SGS general headquarter is set up in Switzerland Geneva, is the maximal test and attestation organizationcenter in the world, whose attestation is more than 140 country. And it is the earliest authority attestation organization, founded in 1878. The SGS chemistry tests is also known as ROHS tests. SGS builds new environmental protection of European Union instruction---ROHS,rated as " the most severe environmental protection standard in the world ". It is put into effect formally in European Union in August, 2005. It is a leader and innovater in the world, providing appraisal , testing and attestation serve. THe standard is controlled by European expert with six hazardous wastes Pb , Cd , Hg , Cr6 + , PBB , PBDE of SGS.