ASTM RR-D20-1256 2012 PDF

Full title and description

St ASTM RR‑D20‑1256 (2012) — Research Report supporting ASTM D1603, "Test Method for Carbon Black Content in Olefin Plastics". The report documents an interlaboratory study conducted to establish precision statements for the D1603 test method and was approved May 1, 2012.

Abstract

This research report (RR:D20‑1256) summarizes an interlaboratory study in which five laboratories tested three different olefin plastic materials to establish precision and reproducibility for ASTM D1603. Results reported in the study are based on replicate determinations (each "test result" represents the average of two determinations; each laboratory reported three replicate test results per material). The underlying D1603 procedure determines carbon black content gravimetrically after pyrolysis under nitrogen and specifies scope and limitations.

General information

• Status: Research Report (approved); associated with ASTM D1603 (test method).
• Publication date: Research report approved May 1, 2012.
• Publisher: ASTM International (ASTM).
• ICS / categories: Plastics — analytical test methods; D1603 ICS code listed as 83.080.10.
• Edition / version: RR:D20‑1256 (2012) supporting ASTM D1603 (edition published in 2012 as D1603‑12).
• Number of pages: Research report page count not listed on the public listing; the associated D1603‑12 standard is published as a 3–4 page test method (ASTM listing shows 4 pages for more recent editions).

Scope

Reports the interlaboratory precision study for ASTM D1603, which covers determination of carbon black content in olefin plastics such as polyethylene, polypropylene, and polybutylene. The D1603 procedure determines carbon black gravimetrically after pyrolysis in an inert (nitrogen) atmosphere and excludes compositions containing nonvolatile pigments or other fillers (and is not applicable to materials with certain brominated flame retardant additives).

Key topics and requirements

• Interlaboratory study design and statistical analysis to establish precision and reproducibility for D1603.
• Sample preparation and handling for gravimetric carbon black determination after pyrolysis.
• Required apparatus and procedure details (electric furnace, high‑temperature glass combustion tube, combustion boat, inert purge with nitrogen).
• Limitations and applicability: intended for polyethylene, polypropylene, polybutylene; not suitable for materials with nonvolatile pigments or some flame retardants.
• Use of replicate determinations and averaging to produce reported test results and precision statements.

Typical use and users

This research report and the D1603 test method are used by analytical and quality laboratories in polymer and compound manufacturing, material specification authors, product quality control, and regulatory or compliance testing programs that require validated methods for quantifying carbon black in olefin matrices. Users include R&D chemists, QA/QC technicians, standards authors, and third‑party testing laboratories.

Related standards

ASTM D1603 is related to other analytical methods and precision studies for plastics (Committee D20). The D1603 method notes ISO 6964‑1986(E) as addressing a similar subject, and D1603 has later editions (for example D1603‑14 and the D1603‑20 edition listed as active). Other D20 analytical test methods and research reports cover complementary determinations (ash, elemental content, moisture, etc.).

Keywords

carbon black; olefin plastics; polyethylene; polypropylene; polybutylene; gravimetric analysis; pyrolysis; interlaboratory study; precision statement; ASTM D1603; RR:D20‑1256.

FAQ

Q: What is this standard?

A: This listing is for the ASTM research report RR:D20‑1256 (2012), an interlaboratory study report that supports ASTM D1603, "Test Method for Carbon Black Content in Olefin Plastics." The research report was approved May 1, 2012.

Q: What does it cover?

A: It documents a multi‑laboratory study designed to establish precision and reproducibility statements for the D1603 test method, which determines carbon black content gravimetrically after pyrolysis under nitrogen for polyethylene, polypropylene, and polybutylene materials; it also documents method limitations (e.g., nonvolatile pigments, certain flame retardants).

Q: Who typically uses it?

A: Materials testing and QA/QC laboratories, polymer compounders, standards developers, and regulatory or certification bodies that require validated precision information for applying ASTM D1603.

Q: Is it current or superseded?

A: The research report RR:D20‑1256 dates to 2012 and documents precision for the D1603 edition current at that time (D1603‑12). D1603 has subsequent published editions (for example D1603‑14 and D1603‑20); users should check ASTM International for the most current active edition and any later research reports or revisions. As of the available listings, D1603‑20 is shown as an active edition.

Q: Is it part of a series?

A: RR:D20‑1256 is one of many committee D20 research reports (RR:D20‑####) that support ASTM D20 analytical and test methods. It specifically supports the D1603 test method and fits within the D20.70 analytical methods subgroup.

Q: What are the key keywords?

A: Carbon black, olefin plastics, gravimetric pyrolysis, interlaboratory precision, ASTM D1603, RR:D20‑1256.