ASTM D4797-88(1998) - 10.10.1998
 
1. Scope

1.1 These test methods cover procedures for the chemical and gravimetric analysis of white and yellow thermoplastic traffic marking containing lead chromate and titanium dioxide pigment.

1.2 The analytical procedures appear in the following order:

Sections Percent Binder 10 Percent Glass Beads (Note 1) 11 Percent Titanium Dioxide 12 Percent Lead Chromate and Analysis of Chrome Yellow and 13 Chrome Orange Pigments (Note 2)

1.3 This standard does not purport to address all of the safety problems, 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.

Note 1-Test for 1.50 glass spheres only. Note 2-This modified analysis of chrome yellow and chrome orange pigments must be used because the heat resistant chrome yellows in the thermoplastic cannot be analyzed by Test Method D126.
 
2. Referenced Documents

D7308-17(2022)

Standard Practice for Sample Preparation of Thermoplastic Pavement Marking Materials

E177-26a

Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods (Includes all amendments and changes 5/14/2026).

E691-23

Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method

D1394-76(2020)

Standard Test Methods for Chemical Analysis of White Titanium Pigments

D7307-21

Standard Practice for Sampling of Thermoplastic Pavement Marking Materials

D126-87(2023)

Standard Test Methods for Analysis of Yellow, Orange, and Green Pigments Containing Lead Chromate and Chromium Oxide Green