GB/T 14039-2002 in English

《GB/T 14039-2002液压传动 油液 固体颗粒污染等级代号》由TC3（全国液压气动标准化技术委员会）归口，TC3SC4（全国液压气动标准化技术委员会液压污染控制分会）执行，主管部门为中国机械工业联合会。
本标准规定了确定液压系统的油液中固体颗粒污染等级所采用的代号。

1 Scope

This standard specifies the code to be used in defining the quantity of solid particles in the fluid used in a given hydraulic fluid power system.

2 Normative References

The following normative documents contain provisions which, through reference in this standard, constitute provisions of this standard. For dated reference, subsequent amendments to, or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this standard are encouraged to study whether the latest edition of these documents is applicable. For undated references, the latest editions of the normative documents apply.

1 Scope 1
2 Normative References 1
3 Code Definition 1
3.1 General 1
3.2 Basis of Code 2
3.3 Allocation of Scale Numbers 2
3.4 Determination of Code Using Automatic Particle Counter Analysis 3
3.5 Determination of Code Using Microscope Sizing 4
4 Identification Statement (Reference to this Standard) 4
Appendix A (Normative) Graphical Presentation of the Code Number 5
Bibliography 7