ASTM D1508-23e1 PDF

Full title and description

ASTM D1508-23e1 — Standard Test Method for Carbon Black, Pelleted Fines and Attrition. Test procedures for determining fines content and attrition behavior of pelleted carbon black to assess pellet stability, dustiness, and potential degradation during handling and transport.

Abstract

This standard provides two complementary methods: Method A to determine fines content (small particles or dust generated from pelleted carbon black) and Method B to evaluate attrition (the tendency for pellets to break down and generate additional fines under handling conditions). Results help manufacturers and users quantify pellet quality, predict handling performance, and support quality control and specification limits.

General information

• Status: Active
• Publication date: 1 May 2023 (edition 23e1; includes subsequent amendment/changes noted July 11, 2024)
• Publisher: ASTM International
• ICS / categories: 83.040.20 (Rubber compounding ingredients)
• Edition / version: D1508-23e1
• Number of pages: 3

Scope

This test method covers the determination of fines and attrition of pelleted carbon black. It provides standard procedures for sampling, sample reduction, sieving, and attrition measurement to quantify the percent fines and to compare fines versus attrition for evaluation of pellet stability. The standard does not address all possible safety concerns; users must apply appropriate safety and environmental practices.

Key topics and requirements

• Two methods: Method A — measurement of fines content; Method B — measurement of attrition (fines produced under controlled agitation/handling).
• Sampling and sample preparation references: practice for sampling and splitting (sample reduction) to obtain representative 25.0 g test portions.
• Sieving apparatus and specification: use of 125 μm (U.S. Standard No. 120) sieves (stacked receivers) and mechanical or vibratory sieve shaker for fines determination.
• Required equipment: sieve separator receivers, covers, receiver pans, riffle sample splitter, scoop/spoon, and a balance with 0.1 g sensitivity.
• Calculation and reporting of percent fines and percent attrition to permit comparison of pellet quality and expected generation of fines during handling or transit.
• Notes on significance: fines relate to bulk flowability and dustiness; comparison of fines vs. attrition indicates pellet stability and degradation potential.

Typical use and users

Used by carbon black manufacturers, quality control laboratories, raw-material suppliers, rubber and tire compounders, and material-handling engineers. Typical applications include incoming material inspection, production quality control, evaluation of packaging/transport effects on pellet integrity, and specification compliance for pelletized carbon black products.

Related standards

Standards and practices commonly referenced in conjunction with D1508 include sampling and sample reduction practices and various ASTM test methods for rubber compounding ingredients and related measurements (e.g., practices for sampling and sample splitting, and other material-characterization methods used by the D24 committee).

Keywords

carbon black, pelleted carbon black, fines, attrition, pellet quality, dustiness, sieve, sample splitting, bulk flowability, pellet stability

FAQ

Q: What is this standard?

A: ASTM D1508-23e1 is a short (3‑page) test method that defines procedures to measure fines content and attrition of pelleted carbon black.

Q: What does it cover?

A: It covers sampling, sample reduction, sieving (typically using 125 μm / U.S. No. 120 sieves), and controlled attrition testing to report percent fines and percent attrition for pelleted carbon black.

Q: Who typically uses it?

A: Carbon black producers, QC laboratories, rubber compounders, material-handling engineers, and suppliers who need to quantify pellet integrity, dustiness, and handling performance.

Q: Is it current or superseded?

A: The D1508-23e1 edition (published 1 May 2023, edition 23e1) is active. It includes subsequent editorial/amendment updates as noted by the publisher.

Q: Is it part of a series?

A: D1508 is a single test method within the ASTM D24 committee portfolio addressing carbon black and rubber compounding ingredients; it is often used alongside related sampling and material‑characterization practices and test methods developed by the same committee.

Q: What are the key keywords?

A: attrition, carbon black, fines, pellet quality, pelleted carbon black, dustiness, sieve.