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Homepage>ASTM Standards>93>93.080>93.080.30>ASTM D4797-17 - Standard Test Methods for Gravimetric Analysis of White and Yellow Thermoplastic Pavement Marking
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Released: 01.12.2017

ASTM D4797-17 - Standard Test Methods for Gravimetric Analysis of White and Yellow Thermoplastic Pavement Marking

Standard Test Methods for Gravimetric Analysis of White and Yellow Thermoplastic Pavement Marking

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Standard number:D4797-17
Released:01.12.2017
Status:Active
Pages:4
Section:06.02
Keywords:binder; lead chromate; non-retroreflective particles; organic pigment; retroreflective optics; thermoplastic pavement marking material; titanium dioxide;
DESCRIPTION

1.1 These test methods cover procedures for the gravimetric analysis of the binder and hydrochloric Acid (HCL) insoluble particles in white and yellow thermoplastic pavement markings. The HCL insoluble particles can be retroreflective optics, such as glass beads or some other type of retroreflective optic, or non-retroreflective particles such as silica sand, or a combination of any two or more of these materials.

1.2 This standard does not address the physical separation and the individual quantification of each component when a mixture of two or more HCL insoluble materials is present. Rather it requires the user to visually evaluate the HCL insoluble material (obtained from following this test method) and report the types of materials present.

1.3 This standard does not purport to address the titanium dioxide or lead chromate pigment measurement (after ashing) which is detailed in Test Methods D1394 and D126.

1.4 This standard will attempt to address the interference of organic pigments with the binder results.

1.5 The analytical procedures appear in the following order:

 

Sections

Percent Binder

10

Percent Retroreflective Optics or
 Non-Retroreflective Particles

11

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

1.7 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.8 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.