Соответствующая норма
Austria
Practice Relating to Rule 70. Weapons of a Nature to Cause Superfluous Injury or Unnecessary Suffering
In 1997, during a debate in the First Committee of the UN General Assembly, Austria stated that excessively injurious weapons must be banned, since humanitarian aspects must override others. 
Austria, Statement before the First Committee of the UN General Assembly, UN Doc. A/C.1/ 32/PV.13, 29 September 1977, p. 28.