Product Description:
Qualtech Products Industry Powder Angle of Repose Tester with Glass Funnel is a precision engineered Powder Test Instrument to instantly determine the flowability and flow properties of powders and granular materials including pharmaceutical powders, cosmetic powders, flour, sugar, coffee, powdered milk, toner, metal powders and related materials as well as naturally present powders and granules including snow, dust, sand, volcanic ash and related materials.
The Angle of Repose is the angle of the conical pile of powder or granules created when a specified amount of powder is poured onto a horizontal surface and it indicates the amount of interparticulate friction between individual particles representing the flow properties of powders and related materials.
This professional Powder Angle of Repose is designed and engineered offering a precision high quality stainless steel design combined with a precision engineered Glass Funnel ideal for applications in the Food Industry and in the Pharmaceutical Industry, an integrated Level and a Powder Tray to ensure high accuracy, high repeatability, user-friendly application, user-friendly sample handling, easy cleaning, an ergonomic design, a reliable performance and much more.
This precision Powder Pile Angle Determination Apparatus and Powder Angle of Repose Tester with Glass Funnel is designed and engineered in accordance with international test standards including:
- ASTM D6393-08 (Standard Test Method for Bulk Solids Characterization by Carr Indices)
- ISO 4324 (Surface active agents — Powders and granules — Measurement of the angle of repose)
- ISO 8398 (Solid fertilizers — Measurement of static angle of repose)
- DIN EN 12047 (Solid fertilizers – Measurement of static angle of repose)
- US Pharmacopoeia – USP 1174
- European Pharmacopoeia – EP 2.9.36/17
Powder Angle of Repose with Glass Funnel QPI-PAR2800 - Application:
The QPI‑PAR2800 Powder Angle of Repose Tester is designed for precise measurement of powder flowability using the fixed‑funnel method, a procedure referenced across ASTM and ISO powder‑handling practices. The instrument uses a borosilicate glass funnel, a precision height block, and a calibrated base plate to generate a reproducible conical pile from which the natural angle of repose is calculated.
ASTM‑Aligned Test Method (Fixed Funnel Procedure)
Although ASTM does not have a single dedicated “Angle of Repose” standard, the method is widely used in ASTM powder‑flow characterization practices (e.g., ASTM C1444, ASTM D6393, ASTM E11 sampling guidance). The QPI‑PAR2800 follows the ASTM fixed‑funnel procedure, which is recognized across powder‑handling industries.
ASTM Procedure Overview
Prepare the Test Setup
Position the glass funnel at a fixed height above the stainless steel base plate.
Ensure the funnel orifice is clean, dry, and free of residual powder.
Condition the Powder Sample
Sieve or de‑agglomerate the powder according to ASTM sampling practice.
Confirm moisture content and particle size distribution are stable.
Controlled Powder Discharge
Allow the powder to flow freely through the funnel without vibration or mechanical assistance.
The powder forms a natural conical pile on the base plate.
Measurement of the Cone Geometry
Measure the height (H) of the pile using the integrated height gauge.
Measure the diameter (D) of the pile at its widest point.
Angle Calculation The angle of repose is calculated using the standard geometric relationship as presented in the ASTM Test Standard.
Reporting
Report the angle in degrees.
Include powder conditioning details, funnel height, and environmental conditions.
ASTM Engineering Purpose
The ASTM fixed‑funnel method is used to evaluate:
powder cohesiveness
flowability during handling
hopper discharge behavior
suitability for mixing, blending, tableting, or packaging
It is especially relevant for pharmaceutical powders, food ingredients, pigments, metal powders, and fine chemicals.
ISO‑Aligned Test Method (ISO Powder Flowability Practice)
ISO standards such as ISO 4324, ISO 4490, and ISO 9276‑6 reference powder flow behavior and free‑flow measurement. The QPI‑PAR2800 follows the ISO fixed‑funnel angle‑of‑repose method, which is widely used in European laboratories.
ISO Procedure Overview
- Instrument Preparation
- Mount the glass funnel at the ISO‑specified height (typically 50–75 mm).
- Verify the base plate is level and free of vibration.
- Sample Loading
- Introduce the powder into the funnel without compaction.
- Avoid tapping or shaking to maintain ISO free‑flow conditions.
- Formation of the Powder Cone
- The powder flows through the funnel and forms a symmetrical cone.
- ISO emphasizes visual inspection of flow behavior through the transparent glass funnel.
- Dimensional Measurement
- Measure cone height and diameter using ISO‑calibrated gauges.
- Repeat the test to confirm reproducibility.
- Angle Determination
ISO uses the same geometric formula as the corresponding ASTM Test Standard.
- Documentation
- Record environmental conditions (humidity, temperature).
- Note any flow irregularities such as arching, bridging, or clumping.
ISO Engineering Purpose
The ISO method is preferred when:
- powder purity and visibility are critical
- flow behavior must be visually documented
- the powder is fine, cohesive, or sensitive
- the laboratory requires traceable, repeatable measurement conditions
This makes the glass funnel version ideal for pharma, cosmetics, food powders, additive manufacturing powders, and high‑value chemicals.
Powder Angle of Repose Determination with Glass Funnel - Features:
- Precision engineered high quality Stainless Steel Design
- Precision engineered Funnel made of high quality & durable Glass
- Precision engineered Glass Funnel ideal for applications in the Food Industry & Pharmaceutical Industry
- Integrated Level
- Powder Tray
- User-friendly Application
- User-friendly Sample Handling
- Easy Cleaning Technology
- High Accuracy & High Repeatability
- Ergonomic Design & Reliable Performance
- Engineered in accordance with recognized test standards ASTM D6393, ASTM D6941, ISO 4324, ISO 8398, DIN EN ISO 4324, DIN EN 12047, USP 1174, Ph. Eur. 2.9.36/17
Powder Angle of Repose with Glass Funnel – Specifications:
| Model | QPI-PAR2800 |
|---|---|
| Precision Engineered Stainless Steel Design | Yes |
| High Quality Glass Funnel | Yes |
| High Quality Glass Powder Tray | Yes |
| Inner Funnel Diameter | Ø145mm |
| Funnel Orifice Diameter | Ø10mm |
| Glass Powder Tray Diameter | Ø100 mm |
| Repeatability | ≤1% |
| Integrated Level | Yes |
| Test Standards | ASTM D6393 ASTM D6941 ISO 4324 ISO 8398 DIN EN ISO 4324 DIN EN 12047 USP 1174 Ph. Eur. 2.9.36/17 |
| High Accuracy & High Repeatability | Yes |
| User-friendly Application | Yes |
| User-friendly Sample Handling | Yes |
| Ergonomic Design & Reliable Performance | Yes |
| Engineered in accordance with recognized test standards including ASTM D6393, ASTM D6941, ISO 4324, ISO 8398, DIN EN ISO 4324, DIN EN 12047, USP 1174, Ph. Eur. 2.9.36/17 | |
Powder Angle of Repose Determination with Glass Funnel – Included items:
- Professional Powder Angle of Repose with high quality Glass Funnel
- Wide range of included accessories
- Quality Certificate
- Carefully Calibrated
- User manual
- Extended Warranty
- Lifetime Support
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