000 00458nam a2200133Ia 4500
008 220217s9999 xx 000 0 und d
245 0 _aTesting of rubber and elastomers. Accelerated test of ageing in elastomers by exposure to ozone: Determination of ozone concentration (Reference method).
260 _c1977
500 _aStandard number: DIN 53 509 Part 2
650 _aAccelerated ageing test
650 _aElastomers
650 _aOzone
942 _cST
999 _c73321
_d73321