ASTM D 3591 PVC in Formulated Compounds

PVC homopolymers' logarithmic viscosity number is evaluated using the ASTM D 3591 Standard Test Method after compounding or processing. It assumes that the formulation of the resin is known and that any additives may be removed from the resin using a diethyl ether extraction process.

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Overview
Scope, Applications, and Benefits
Test Process
Specifications
Instrumentation
Results and Deliverables

Overview

ASTM D3591 provides standardized procedures for evaluating polyvinyl chloride (PVC) in formulated compounds used in plastic products. PVC compounds often contain additives such as plasticizers, stabilizers, fillers, and pigments that influence the material’s performance and processing characteristics.

The standard helps determine the composition and properties of PVC-based formulations, ensuring consistency, quality control, and compliance with product specifications. ASTM D3591 testing is commonly applied in industries such as construction, automotive, electrical insulation, and consumer plastics manufacturing.

Scope, Applications, and Benefits

Scope

ASTM D3591 establishes procedures for evaluating the composition and characteristics of PVC within formulated plastic compounds. The standard supports material identification, quality verification, and performance evaluation of PVC-based formulations used in various industrial applications.

The scope includes:

Identification of PVC content in formulated compounds
Evaluation of additives and formulation characteristics
Quality control for PVC-based plastic materials
Material verification for industrial and commercial products
Support for product development and compliance testing

Applications

PVC pipes and fittings
Electrical insulation and cable coatings
Vinyl flooring and wall coverings
Automotive interior components
Packaging and consumer plastic products

Benefits

Ensures consistent PVC formulation quality
Helps identify material composition and additives
Supports product quality control and verification
Enables comparison of PVC compound formulations
Assists in research and material development

Test Process

Sample Preparation

The PVC compound sample is collected and prepared according to the required size and condition specified in the standard.

Conditioning

Samples are conditioned in controlled laboratory environments to ensure reliable results.

Analytical Evaluation

Chemical or thermal analysis determines PVC content and additive composition.

Data Analysis

Measured results are analyzed and compared with specifications to determine composition and performance.

Technical Specifications

Parameter	Details
Material Type	Polyvinyl chloride (PVC) formulated compounds
Purpose	Determination of PVC content and formulation characteristics
Sample Forms	Pellets, sheets, molded parts, or compounded plastic materials
Testing Environment	Controlled laboratory temperature and humidity conditions

Instrumentation Used for Testing

Thermogravimetric Analyzer (TGA)
FTIR Spectrometer
Differential Scanning Calorimeter (DSC)
Analytical Balance
Laboratory Furnace
Sample Preparation Tools

Results and Deliverables

PVC content determination report
Formulation composition analysis
Identification of additives and components
Analytical graphs and data interpretation
Comprehensive laboratory testing report

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Our team understands the stakes and subtleties of every test. Whether you’re validating a new Product, de-risking a prototype, or navigating complex compliance requirements, our specialists guide the process with rigor and clarity.

Looking for a trusted partner to achieve your research goals? Schedule a meeting with us, send us a request, or call us at (888) 878-3090 to learn more about our services and how we can support you. Request a Quote

Frequently Asked Questions

ASTM D3591 is used to determine the composition of polyvinyl chloride in formulated compounds and evaluate the presence of additives used in PVC materials for quality control and product verification

PVC formulated compounds are plastic materials created by combining PVC resin with additives such as plasticizers, stabilizers, fillers, and pigments to achieve desired mechanical and processing properties.

The standard helps manufacturers confirm the composition and consistency of PVC compounds, ensuring products meet required performance specifications and industry standards.

Common techniques include thermogravimetric analysis, FTIR spectroscopy, differential scanning calorimetry, and chemical composition analysis.

Products such as PVC pipes, cable insulation materials, vinyl sheets, molded plastic parts, and packaging products can be evaluated using this test method.