Logo

ASTM D6131-97(2012)

Historical Reaffirmation

Standard Test Method for Evaluating the Relative Tint Undertone of Titanium Dioxide Pigments

$73.00

$73.00

$131.40


Sub Total (1 Item(s))

$ 0.00

Estimated Shipping

$ 0.00

Total (Pre-Tax)

$ 0.00


...

1.1 This test method is intended to be used to determine the tint undertone (blue or yellow) of titanium dioxide pigments. This relates to the effective particle size of the pigment. It is based upon tinting with a black iron oxide, but other blacks may be used if found suitable.

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.


5.1 This test method allows the user to make a quick determination of the blueness or yellowness of the tint undertone of titanium dioxide pigments, versus a reference pigment agreed upon by the parties to the test. This is an important measure of tone, since it gives both a measure of effective particle size, and quick approximation of the blue/yellow undertone that can be expected when a coating containing the titanium dioxide is tinted.

5.2 Such matters as the vehicle for preparing the dispersions, and the black for tinting have been suggested. However, changes in the components may be made by agreement between the buyer and the seller.

5.3 The results obtained with a mechanical muller do not necessarily correlate directly with a practice where different dispersion conditions exist. However, dispersion with a mechanical muller is a quick and inexpensive way of evaluating the undertone of a titanium dioxide pigment.

SDO ASTM: ASTM International
Document Number D6131
Publication Date June 1, 2012
Language en - English
Page Count 2
Revision Level 97(2012)
Supercedes
Committee D01.26
Publish Date Document Id Type View
Dec. 1, 2017 D6131-17 Revision
June 10, 1997 D6131-97 Revision
July 1, 2023 D6131-17R23 Reaffirmation
June 1, 2012 D6131-97R12 Reaffirmation
Nov. 1, 2004 D6131-97R04 Reaffirmation