ASTM D3314-02 (2021) PDF

Full title and description

Standard Test Method for Rubber—Chemical Analysis for Polystyrene Blocks in SBR (Styrene-Butadiene Rubber) and Styrene-Reinforced Latices (ASTM D3314-02 reapproved 2021).

Abstract

This test method specifies a chemical-analysis procedure for determining polystyrene (styrene block) content in styrene‑butadiene rubber (SBR) and styrene‑reinforced latices. It is intended for quantitative determination of block styrene content over a broad range (approximately 1–100 %) and is primarily aimed at use in manufacturing control, development, and research.

General information

• Status: Reapproved (R2021) — designation shown as D3314-02R21.
• Publication date: Original designation D3314-02 (2002); reapproved 2021 (R2021).
• Publisher: ASTM International.
• ICS / categories: 83.040.10; 83.060 (Latex and raw rubber; Rubber).
• Edition / version: D3314-02R21 (commonly cited as ASTM D3314-02 (2021)).
• Number of pages: 4.

Scope

This standard covers the determination of long polystyrene blocks in SBR rubbers and styrene‑reinforced latices. Percent block styrene content may be determined across the range from about 1 % up to 100 %. The method is intended for gel‑free polymers but may be applied to polymers containing gel if it has been demonstrated that gel does not interfere with the analysis. The procedure is intended for manufacturing control, development, and research studies.

Key topics and requirements

• Purpose: quantitative chemical analysis of polystyrene (block styrene) in SBR and styrene‑reinforced latices.
• Measurement range: approximately 1–100 % block styrene content.
• Sample applicability: optimized for gel‑free polymers; use with gelled polymers only after validation that gel does not interfere.
• Typical applications: manufacturing process control, formulation development, and laboratory research.
• Safety note: standard does not address all safety concerns; users must establish appropriate safety, health, and environmental practices (see the standard’s safety section).
• Administrative: published under Book of Standards, Volume 09.01, developed by Subcommittee D11.11; DOI 10.1520/D3314-02R21.

Typical use and users

Laboratories in rubber and polymer manufacturing, quality control personnel, R&D chemists working with styrenic elastomers and latices, and standards/compliance teams use this method to quantify styrene block content for product control, specification verification, and formulation studies.

Related standards

Related ASTM and industry standards cover other rubber and latex test methods and specifications (for example, standards addressing latex specifications, sampling, and allied chemical analyses used by committees under Book of Standards 09.01). Some databases that index standards list cross‑references between D3314 and other ASTM rubber/latex standards.

Keywords

polystyrene, block styrene, SBR, styrene‑butadiene rubber, styrene‑reinforced latex, chemical analysis, test method, ASTM D3314.

FAQ

Q: What is this standard?

A: ASTM D3314-02 (reapproved 2021) is a standard test method for the chemical analysis of polystyrene (block styrene) in SBR and styrene‑reinforced latices, used to determine percent block styrene content in these materials.

Q: What does it cover?

A: It covers the procedure for quantitatively determining long polystyrene blocks in SBR and styrene‑reinforced latices, applicable from about 1 % to 100 % block styrene, and includes applicability notes for gel‑free and gelled polymers.

Q: Who typically uses it?

A: Quality control and analytical laboratories in rubber and latex manufacturing, R&D chemists, material scientists, and standards/compliance staff working with styrenic elastomers.

Q: Is it current or superseded?

A: The edition referenced here is the D3314-02 designation reapproved in 2021 (D3314-02R21). Note: some standards resellers and databases also list a later reapproval/active entry dated 2025 for the same designation; if you require the single most current active version or recent reaffirmations, consult ASTM International or your standards subscription to confirm the latest status.

Q: Is it part of a series?

A: It is part of ASTM’s collection of rubber and latex test methods published in Book of Standards, Volume 09.01, and was developed by Subcommittee D11.11; it is grouped with other test methods and specifications covering raw rubber, latex, and related chemical analyses.

Q: What are the key keywords?

A: Polystyrene, block styrene, SBR, styrene‑butadiene rubber, styrene‑reinforced latex, chemical analysis, test method, ASTM D3314.