Revised Standard from Last Update.

1. SCOPE

This Indian Standard (Part 120) is intended for the determination of zinc in unused lubricating oil. It separates zinc from magnesium and alkaline earth metals, but there are chances of interference by other heavy metals.

2. REFERENCES

The following Indian Standards contain provisions which, through reference in this text, constitute the provisions of the standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of these standards.

1447 (Part 1) : 2021 Methods of sampling of petroleum and its products: Part 1 Manual sampling (second revision)

264 : 2005 Nitric acid - Specification (third revision)

265 : 2021 Hydrochloric acid - Specification (fifth revision)

266 : 1993 Sulphuric acid - Specification (third revision)