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4.2 如调查发现超标结果是由仪器设备故障引起，则采用原溶液重新进样即可（适用于即时发现，且原溶液稳定）。如为其它实验室偏差或原溶液已不稳定或不可得，则应当在调查表中对偏差进行详细描述，同时决定改正措施。排除偏差后自行称取原样品复验（必要时平行两份）。
4.2 If the investigation reveals the results exceeded caused by equipment failure, then re-use of the original sample solution can be (for real-time discovery, and the original solution stability). As for the other laboratory error or the original solution has been unstable or unavailable, it should be in the questionnaire to conduct a detailed description of the deviation, also decided to corrective measures. Rule out the bias of the original sample taken after the self-called re-inspection (if necessary, parallel to two).

If the investigation found that out-of-specification results is caused by the equipment failure, using the original sample solution can be found, immediately (applicable and stable). As for other lab deviation or the original solution is unstable or not, should be in the questionnaire for a detailed description of error, and d