1、在机器处在正常工作温度、负荷、压力和速度的时间里取样。

1, sampling the machine at the time of normal working temperature, load, pressure and speed.

2、在过滤前和润滑机器部件如轴承、齿轮、活塞、凸轮等后取样。

2, sampling before and after the filter and lubricating machine parts such as bearing, gear, piston, cam and so on.

3、确保取样阀和取样装置在取样前被彻底的冲洗，尽量避免任何瓶子本身所带来的清洁度问题。

3, ensure that the sampling valve and sampling device are thoroughly washed before sampling, and try to avoid the cleanliness of any bottle itself.

4、确保有固定的取样频率。

4. Ensure that there is a fixed sampling frequency.

5、取样后立即送样检测。

5, sampling immediately after sampling.

6、将取样的各项工作都系统化书面化。

6, the work will be the form of sampling system.