ASTM D 7971 : 2015

Name: ASTM D 7971 : 2015
Brand: ASTM
Price: 56.36 GBP

Superseded

View Superseded by

Standard Guide for Measuring Roundness of Glass Spheres Using a Flowing Stream Digital Image Analyzer

Available format(s)

Hardcopy , PDF

Superseded date

08-08-2020

Language(s)

English

Published date

01-04-2015

Publisher

American Society for Testing and Materials

CONTAINED IN VOL. 06.02, 2018 Defines the determination of the roundness of glass spheres used in pavement marking systems using a flowing stream digital analyzer.

1.1This guide covers the determination of the roundness of glass spheres used in pavement marking systems using a flowing stream digital analyzer. Typical gradations for pavement marking systems are defined in ranges from Type 0 through 5 in AASHTO M247.

1.2This guide provides for the presentation of roundness data in a variety of formats to the requirement of the agency pavement marking material specification. For most specifications the standard format is to present the roundness data as Percent True Spheres relative to a series of standard ASTM sieve sizes.

1.3The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.4This 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.

Committee	D 01
DocumentType	Guide
Pages	4
PublisherName	American Society for Testing and Materials
Status	Superseded
SupersededBy	ASTM D 7971 : 2020

ASTM B 215 : 2015 : REDLINE	Standard Practices for Sampling Metal Powders
ISO 13322-1:2014	Particle size analysis — Image analysis methods — Part 1: Static image analysis methods
AASHTO M 247 : 2013	SPECIFICATION FOR GLASS BEADS USED IN PAVEMENT MARKINGS
ISO 9276-6:2008	Representation of results of particle size analysis — Part 6: Descriptive and quantitative representation of particle shape and morphology