---
title: "ASTM D3720"
url: "https://mat-cs.com/astm-d3720"
description: " This test method covers the determination of the ratio of anatase to rutile in titanium dioxide pigments."
---

ASTM Standard

# ASTM D3720

Standard Test Method for Ratio of Anatase to Rutile in Titanium Dioxide Pigments by X-Ray Diffraction

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## Significance and Use

4.1 This test method is used by titanium dioxide pigment manufacturers and users for process control and product acceptance.

## Scope

1.1 This test method covers the determination of the ratio of anatase to rutile in titanium dioxide pigments. The method is also applicable to pigment mixtures and pigmented coatings containing titanium dioxide.

1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.