Reference Standards used during testing must be qualified and traceable and appropriately stored.
Reference Standards used during testing must be qualified and traceable and appropriately stored.
实验中用的参照对照品必须经过确认并具有可追溯性，并适当贮存。
Reference Standards used during testing must be qualified and traceable and appropriately stored.
实验中用的参照对照品必须经过确认并具有可追溯性，并适当贮存。