2012HG/T 3331-2012 Determination of volume resistivity and surface resistivity of insullac films
1978HG/T 3331-1978 Method of determining volume resistivity and surface resistivity of insulating paint film
HG 2-59-1978 Method for determination of volume resistivity and surface resistivity of insulating paint film was changed to HG/T 3331-1978 Method of determining volume resistivity and surface resistivity of insulating paint film.