ASTM D4797-88(2007) - 1.11.2007
 
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:

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

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. 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 Methods D 126.

 
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