ASTM D7849-23 PDF

Full title and description

Standard Classification for Nomenclature of Reference Materials of Committee D24 — a short classification/practice that defines a systematic nomenclature for the reference materials used under ASTM Committee D24 (Carbon Black). This document specifies naming conventions and identifiers to distinguish types and versions of carbon black reference materials used for calibration, verification, and interlaboratory comparisons.

Abstract

ASTM D7849-23 provides a concise, two‑page classification that prescribes how Committee D24 reference materials (example designations such as IRB, INR, ITRB, STRM, HNSA, etc.) should be named and versioned. It is intended to improve clarity and traceability when specifying or reporting the use of standard reference blacks across laboratories, test methods, and round‑robin studies in the carbon black testing community. The classification supports Committee D24 test methods and practices by standardizing reference‑material nomenclature.

General information

• Status: Active.
• Publication date: May 1, 2023.
• Publisher: ASTM International (ASTM).
• ICS / categories: 01.040.83; 83.040.20 (classification/standards and carbon black-related categories).
• Edition / version: D7849-23 (current edition, approved May 1, 2023; replaces earlier editions such as D7849-18a).
• Number of pages: 2.

Scope

This classification covers instructions for naming the reference materials used by ASTM Committee D24 (Carbon Black). It does not specify test procedures or safety practices; users must refer to the underlying test methods and to the distributors of specific reference materials for target values, handling, and control limits. The classification was developed in accordance with internationally recognized principles on standardization.

Key topics and requirements

• Systematic naming rules for Committee D24 reference materials (format and versioning to distinguish batches and revisions).
• Defined short identifiers for common reference types (examples: IRB — Industry Reference Black; INR — Industry Tint Reference; ITRB; STRM — Sulfur Test Reference Materials; HNSA — High Nitrogen Surface Area reference black).
• Relationship and cross‑referencing to Committee D24 test methods where the materials are used (supports traceability for calibration and proficiency testing).
• Notes on significance and use: reference materials are intended for calibration, verification, and round‑robin testing to determine in‑rubber and laboratory properties of carbon blacks.
• Statement that safety, health, environmental practices, and regulatory applicability are the responsibility of the user; the classification does not replace those requirements.

Typical use and users

Laboratories, producers and distributors of carbon black reference materials, quality managers, testing laboratories performing ASTM D24 test methods (e.g., methods for iodine number, nitrogen surface area, sulfur testing, void volume), and organizers of interlaboratory studies use this classification to ensure consistent naming and reporting of reference materials.

Related standards

ASTM D7849-23 is intended to be used alongside Committee D24 test methods and practices (examples referenced in the classification include D6556, D7854 and other D24 series methods covering iodine number, nitrogen surface area, void volume, sulfur testing, and in‑rubber evaluations). Users should consult the specific test method documents for technical details and acceptance criteria.

Keywords

reference material nomenclature, carbon black, reference black, standard reference black, IRB, INR, ITRB, STRM, SRB, HNSA, nomenclature, Committee D24, calibration, proficiency testing.

FAQ

Q: What is this standard?

A: ASTM D7849-23 is a short classification that defines standardized nomenclature and versioning for reference materials used by ASTM Committee D24 (Carbon Black). It provides naming rules and common identifiers for those reference materials.

Q: What does it cover?

A: It covers the instructions and format for naming Committee D24 reference materials so laboratories and suppliers use consistent identifiers; it does not prescribe test methods or replace safety and handling guidance for the materials.

Q: Who typically uses it?

A: Carbon black test laboratories, reference material suppliers and distributors, quality and R&D personnel in rubber and polymer testing, and organizers of interlaboratory comparisons who require consistent naming and traceability for reference blacks.

Q: Is it current or superseded?

A: Current — the D7849-23 edition was approved and published May 1, 2023. It supersedes the prior D7849-18a edition. Users should confirm the current status before purchase or citation.

Q: Is it part of a series?

A: It is a Committee D24 classification intended to be used together with the broader suite of ASTM D24 standards (test methods and practices for carbon black). The document itself is a short, standalone classification within the D24 family (Book of Standards volume 09.01, Subcommittee D24.41).

Q: What are the key keywords?

A: Reference material nomenclature, carbon black reference, IRB, INR, ITRB, STRM, SRB, HNSA, calibration, proficiency testing, Committee D24.