ASTM D 3364: A Standard Test for PVC Flow Rates

An expansion of Test Method D 1238, ASTM D 3364 is a standard test procedure designed specifically to measure the flow rates of poly(vinyl chloride) (PVC) compounds. It is intended to recognize and control certain polymer instabilities that may affect the precision of flow rate measurements.

Talk to an Expert

ASTM D 3364: A Standard Test for PVC Flow Rates

TRUSTED BY

Precision-driven testing for dimensional accuracy and compliance

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

Overview

ASTM D3364 determines the flow characteristics of polyvinyl chloride (PVC) materials by measuring their behavior under controlled temperature and shear conditions. The test evaluates how easily PVC flows during processing.

This method is widely used in extrusion, molding, and compounding industries. It helps ensure consistent processing performance and supports optimization of PVC formulations.

Scope, Applications, and Benefits

Scope

ASTM D3364 evaluates PVC materials by measuring their flow rate under specified conditions. The test provides insight into processing behavior and material consistency.

The test evaluates:

Flow rate of PVC materials
Processing characteristics during molding and extrusion
Material consistency and uniformity
Thermal behavior under processing conditions
Suitability for manufacturing application

Applications

PVC pipe and profile manufacturing
Cable insulation and sheathing
Film and sheet production
Injection molding applications
Industrial polymer processing
Quality control in PVC production

Benefits

Provides accurate flow rate measurement
Supports process optimization
Ensures consistent material performance
Helps detect formulation variations
Enables comparison of PVC grades

Test Process

Sample Preparation

PVC samples are prepared and dried if required.

Instrument Setup

Material is loaded into a flow rate tester under controlled temperature.

Flow Measurement

Melt or softened material is extruded under load.

Data Recording & Evaluation

Flow rate is calculated based on material output over time.

Technical Specifications

Parameter	Details
Applicable Materials	Polyvinyl chloride (PVC)
Test Temperature	~160°C to 200°C
Load Range	Test Temperature
Flow Rate Range	~0.1 to 20 g/10 min
Test Duration	~5 minutes to 15 minutes
Measured Outputs	Measured Outputs

Instrumentation Used for Testing

Melt flow index tester
Heating chamber
Standard load weights
Sample preparation tools
Temperature control system
Data acquisition system

Results and Deliverables

Flow rate values (g/10 min)
Processing behavior evaluation
Material consistency analysis
Comparative PVC performance
Test condition summary
ASTM compliance report

Why Choose Infinita Lab for <Service- Name>?

With Infinita Lab (www.infinitalab.com), you are guaranteed a Nationwide Network of Accredited Laboratories spread across the USA, the best Consultants from around the world, Convenient Sample Pick-Up and Delivery, and Fast Turnaround Time.

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 D3364 determines flow characteristics of PVC materials under specified conditions. It evaluates processing behavior, helping manufacturers control extrusion and molding performance while ensuring consistent quality of finished PVC products.

Key parameters include temperature, load, time, and sample preparation. Controlled testing conditions ensure accurate measurement of PVC flow properties and consistent comparison between different material batches.

The test measures flow rate of PVC materials, typically expressed as mass or volume over time. Results indicate processing characteristics and suitability for extrusion or molding applications.

ASTM D3364 applies to polyvinyl chloride materials used in pipes, profiles, films, and molded products where flow behavior affects manufacturing performance and product quality.

ASTM D3364 results depend on test conditions and sample preparation. It may not fully represent actual processing environments, requiring correlation with real manufacturing conditions for accurate performance evaluation.