00333nam a2200109Ia 4500008004100000245009000041260000900131500003800140650000800178650002200186650001500208220217s9999    xx            000 0 und d 0aMethods of testing vulcanized rubber. Part B 13. Determination of ash and zinc oxide.  c1964  aStandard number: BS 903 Part B 13  aAsh  aVulcanized rubber  aZinc oxide