| 摘要 |
In order to discover whether a partly or virtually completely empty container is contaminated with an unacceptable substance, as may be the case if a plastic bottle intended for mineral water has been used domestically for storing insecticides or the like, a sample of gas (G) from the container is ionised in an electric discharge path (3) and the discharge behaviour (UF) and/or the ionisation of the gas caused by the discharge is evaluated as a measurement.
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