ITTF  2021 Anti -Doping Rules  Page 20 of 61 involving Samples  and related analytical data or Doping Control  information shall adhere to the principles set out in Article 19  of the Code .30   6.4 Standards for Sample  Analysis and Reporting   In accordance with Article 6.4  of the Code , ITTF  shall ask laboratories to analyze Samples  in conformity with the International Standard for Laboratories and Article 4.7 of the International Standard for Testing  and Investigations.