It's called testing. If imported, the materials submitted are as follows:
(1) Declaration of conformity of imported dangerous chemicals;
(2) For products that need to be added with inhibitors or stabilizers, the name and quantity of the actually added inhibitors or stabilizers shall be provided;
(3) Chinese hazard publicity label samples (except for bulk products, the same below) and Chinese safety data sheets.
In case of export, submit the following materials:
(a) the declaration of conformity of the export of dangerous chemicals production enterprises.
(2) Inspection results of outbound goods transport packaging performance (except bulk products);
(3) Hazard characteristics classification and identification report;
(4) Samples of hazard publicity labels and safety data sheets, if any, shall be provided with corresponding Chinese translations;
(5) For products that need to be added with inhibitors or stabilizers, the name and quantity of the actually added inhibitors or stabilizers shall be provided.
Please go to official website to download the details. This is very important. You may use it again in the future.