10  STATISTICAL TECHNIQUES  统计技术

The Operator shall, where appropriate, evaluate and identify the need for the use of statistical techniques.

适当时，经营者应评估和识别使用统计技术的需求。

Where statistical techniques are applied, the need for these techniques shall be demonstrated.

对于应用了统计技术的地方，应证实确实需要这些技术。

The adequacy of these techniques shall be demonstrated:

使用这些技术的充分性应被证实：

a) standard error shall be calculated and documented; 标准误差应被计算和记录；

b) standard error must be of an appropriate level to sufficiently ensure feed safety;

标准误差必须在一个适当的水平，以充分确保饲料安全；

c) data exceeding standard error and trends shall be monitored;

超过标准误差数据和趋势应被监测；

d) Corrective actions shall be specified in the event of a breach of error limits.

当超出误差允许范围的情况发生时，应明确指定相应的纠正措施。

Ensure that:  确保

  The use of statistical techniques has been evaluated and defined;

     统计技术的使用已被评价和规定；

  An overview of each statistical method is available;

     各种统计方法的概述均可获得；

  The applicability of methods is documented;

     方法的适用性已形成文件；

  The Operator possesses the necessary statistical competencies;

     生产商拥有必要的统计能力；

  Corrective actions are defined for results outside of the standard error.

     对于在标准误差以外的结果，规定纠正措施。