GC test mixture FAME/fatty acids for controlling the performance of fused silica capillary columns and the GC system. Contents (0.1 % each): FAMEs C4, C6, C8, C10, C12, C14, C16, C18, C18:1 cis, C18:1 trans, C18:2, C18:3, C20, C22, C22:1, C24. This product contain harmful substances which must be specially labeled as hazardous. For detailed information please see SDS.