ASTM D6886-24 PDF

Full title and description

Standard Test Method for Determination of the Weight Percent Individual Volatile Organic Compounds in Air‑Dry Low VOC Coatings by Gas Chromatography (ASTM D6886‑24). This method specifies a gas‑chromatographic procedure to identify and quantify individual volatile organic compounds (VOCs) present in low‑VOC, air‑dry coatings and to report their weight percent contribution to the coating formulation. It is intended to give improved precision for low VOC coatings where indirect methods have limited accuracy.

Abstract

ASTM D6886‑24 is a direct, GC‑based test method for speciating and quantifying individual volatile organic compounds in air‑dry coatings with low overall VOC content (typically defined as <150 g/L). The method supports analysis of waterborne coatings and certain solventborne or silane/siloxane systems, can determine compounds down to about 0.005 wt% (50 ppm), and includes procedures for measuring exempt VOCs and for handling potential decomposition or solvent‑reaction artifacts. It is not suitable for coatings that cure by chemical reaction (two‑component or heat‑curing systems) because required dilutions interfere with cure.

General information

• Status: Active standard (current edition).
• Publication date: November 1, 2024.
• Publisher: ASTM International (Committee D01.21, Book of Standards Volume 06.01).
• ICS / categories: 71.040.50 (Physicochemical methods of analysis — paints and varnishes).
• Edition / version: D6886‑24 (revises D6886‑18).
• Number of pages: 11 (DOI: 10.1520/D6886‑24).

Key bibliographic and document information above is drawn from the ASTM/standards catalogs and reflects the published D6886‑24 edition.

Scope

This test method determines the weight percent of individual VOCs present in low‑VOC air‑dry coatings by extracting/conditioning the sample and analyzing by gas chromatography with appropriate detectors and calibration. The method is applicable to waterborne coatings (precision established for coatings with VOC weight percent below about 5%), certain solventborne coatings, and coatings containing silanes/siloxanes. It is not intended for coatings that cure via chemical reaction (two‑component or elevated‑temperature cure) because sample dilution prevents normal cure. The method can also be used to determine exempt VOCs when required by regulation. Detection down to ~0.005 wt% (50 ppm) is possible with the procedures described.

Key topics and requirements

• Identification and quantification of individual volatile organic compounds by gas chromatography (GC) with appropriate calibration and reporting of weight percent for each compound.
• Sample preparation and extraction/dilution procedures designed for air‑dry, low‑VOC coatings (with notes on avoiding decomposition and solvent artifacts).
• Minimum detectable levels and procedures to measure VOCs at ~0.005 wt% (50 ppm) or greater.
• Precision statements and applicability: established precision for waterborne low‑VOC coatings (generally <5 wt% VOC); guidance for solventborne systems and how results compare with EPA Method 24.
• Handling of exempt VOCs (examples and regulatory note) and guidance on when results may not be equivalent to film‑based determinations (EPA Method 24 differences).
• Reporting conventions, limits, and precautions about thermal decomposition in hot GC inlets and reaction with extraction solvents (such results should be discounted when shown to be artifacts).

Typical use and users

Used by industrial and third‑party analytical laboratories, quality control and R&D groups within coatings and paint manufacturers, environmental compliance teams, regulatory agencies, and consultants who must specifically identify and quantify the individual VOC constituents of low‑VOC, air‑dry coatings for product development, specification compliance, or regulatory reporting. It is especially useful where traditional mass‑loss or bulk VOC methods lack precision at low VOC levels.

Related standards

Commonly referenced and complementary documents include: ASTM Practice D3960 (determination of VOC content by weight loss and related practices), EPA Method 24 (film‑based VOC determination — note differences at low VOCs), ASTM D6133 (direct GC injection methods for certain exempt compounds), and earlier edition ASTM D6886‑18. For painting/coatings testing context see the ASTM paint standards collection (Book of Standards Volume 06.01).

Keywords

VOC, volatile organic compounds, gas chromatography, coatings testing, air‑dry coatings, low VOC, speciated VOC, exempt VOC, paint analysis, D6886‑24.

FAQ

Q: What is this standard?

A: ASTM D6886‑24 is a test method that specifies a gas‑chromatographic procedure to identify and quantify individual volatile organic compounds by weight percent in air‑dry, low‑VOC coatings.

Q: What does it cover?

A: It covers sample preparation, GC analysis, calibration, detection limits and reporting to determine the weight percent of individual VOCs in low‑VOC air‑dry coatings, including guidance on exempt VOCs and limitations where the method is not appropriate (e.g., chemically curing coatings).

Q: Who typically uses it?

A: Analytical laboratories, coatings manufacturers (QC and R&D), regulatory bodies, and consultants who need speciated VOC data for low‑VOC coatings.

Q: Is it current or superseded?

A: Current — the D6886‑24 edition (2024) is the active/recent version and it revises the prior D6886‑18 edition.

Q: Is it part of a series?

A: It sits within ASTM's paints and coatings standards (Book of Standards Volume 06.01) and is complementary to other VOC and GC methods such as Practice D3960 and Test Method D6133; it addresses speciated VOC determination for low‑VOC air‑dry coatings.

Q: What are the key keywords?

A: VOC, volatile organic compounds, gas chromatography, low‑VOC coatings, air‑dry coatings, speciated VOC, exempt VOCs, ASTM D6886‑24.