This standard stipulates the determination of germanium by carbon tetrachloride extraction and lumefenone complex spectrophotometry. This standard applies to the determination of germanium in polyester resin for food packaging and its molded products.
GB/T 15205-1994 history
2003GB/T 5009.127-2003 Determination of germanium in polyester resin and products for food packaging
1994GB/T 15205-1994 Determination method of germanium in polyester resin for food packaging and its molded products
GB/T 15205-1994 Determination method of germanium in polyester resin for food packaging and its molded products was changed to GB/T 5009.127-2003 Determination of germanium in polyester resin and products for food packaging.