ASTM D1895: Apparent Density Bulk Factor & Pourability of Plastic

ASTM D1895 test method measures the apparent density, bulk factor, and pourability of plastic materials like molding powders and materials ranging from fine powders and granules to large flakes and cut fibers. The test method considers SI units as the standard.

Talk to an Expert

ASTM D1895: Apparent Density Bulk Factor & Pourability of Plastic

TRUSTED BY

Precision-driven testing for dimensional accuracy and compliance

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

Precision-driven testing for dimensional accuracy and compliance

ASTM D1895 determines the apparent density, bulk factor, and pourability of plastic materials in granular or powdered form. These properties are essential for understanding the behavior of material handling, storage, and processing.

This method is widely used in polymer manufacturing and compounding industries. It helps evaluate how plastic materials flow and pack, which directly impacts feeding efficiency in molding and extrusion processes.

Scope, Applications, and Benefits

Scope

ASTM D1895 evaluates plastic materials by measuring their apparent density, bulk factor, and flow characteristics under standardized conditions. The test provides insight into handling and processing behavior.

The test evaluates:

Apparent bulk density of plastics
Bulk factor (packing characteristics)
Pourability and flow behavior
Material consistency and uniformity
Suitability for processing applications

Applications

Plastic granules and powders
Injection molding materials
Extrusion and compounding processes
Polymer manufacturing
Material storage and handling systems
Quality control in plastics production

Benefits

Improves material handling and feeding efficiency
Supports process optimization
Ensures consistency in material flow behavior
Helps detect variations in material quality
Enables comparison of plastic materials

Improves material handling and feeding efficiency Supports process optimization Ensures consistency in material flow behavior Helps detect variations in material quality Enables comparison of plastic materials

Sample Preparation

Plastic granules or powders are collected and conditioned.

Density Measurement

Material is poured into a container to determine apparent density.

Bulk Factor Calculation

Bulk factor is calculated based on density values.

Flow and pourability characteristics are assessed.

Bulk Factor Calculation

Technical Specifications

Parameter	Details
Technical Specifications	Plastic granules and powders
Apparent Density Range	~0.3 to 0.9 g/cm³
Bulk Factor Range	~1.1 to 3.0
Funnel Diameter	~10 mm to 25 mm
~23°C ± 2°C	~23°C ± 2°C
Measured Outputs	Density, bulk factor, pourability

Instrumentation Used for Testing

Density measuring cylinder
Standard funnel apparatus
Analytical balance
Sample conditioning equipment
Flow measurement setup
Data acquisition system

Results and Deliverables

Apparent density values
Bulk factor calculations
Pourability assessment
Material handling performance analysis
Test condition summary
ASTM compliance report

Why Choose Infinita Lab for ASTM D1895?

Infinita Lab offers comprehensive ASTM D1895 testing services, a Comprehensive lab network, project management, confidentiality, and rapid turnaround. Trust Infinita Lab for your material testing needs, Faster test results, cost savings, and reduced administrative workload.

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 D1895 determines apparent density, bulk factor, and pourability of plastic materials. It evaluates flow behavior and packing characteristics, helping optimize handling, storage, and processing in manufacturing operations involving plastic resins.

Key parameters include sample preparation, container volume, pouring method, and measurement conditions. Controlled procedures ensure accurate determination of density and flow properties of plastic materials.

The test measures apparent density, bulk factor, and pourability of plastics. Results indicate flow characteristics, packing efficiency, and suitability for feeding processes in manufacturing operations.

ASTM D1895 applies to plastic materials such as pellets, powders, and granules used in extrusion, molding, and other processing applications requiring consistent flow behavior.

ASTM D1895 results depend on sample handling and test method selection. It may not fully represent behavior under dynamic processing conditions, requiring additional testing for comprehensive material evaluation.