Oil sampling is one of the most important parts of any oil analysis program. In fact, the effectiveness of the whole program depends on the suitability of the sampling practices.

Any good sampling practice should address below items:
- When?
- Which tools?
- Which method?
- How much?
The oil analysis will fail to reach to its goals if it is not accompanied with correct sampling practices. This post is a quick review on the most important aspects of a good sampling practice (coming soon).