Electrostatic discharge testing system PTW

massflowdensity

Overview
The Powder Testing Workstation™ PTW is designed to meet USP, Ph. Eur., ASTM and ISO standards for powder flow testing. It integrates six established powder testing methods into a single, configurable workstation suitable for pharmaceutical pharmacopoeial assessments and supporting industries (cosmetics, food production, additive manufacturing). The PTW supports manual or automated operation and is designed for straightforward cleaning and maintenance.

Key capabilities
The PTW supports:

• Angle of Repose
• Flow through an Orifice — via Cylinder
• Flow through an Orifice — via Funnel
• Bulk Density via Scott Volumeter (and Shear Cell)
• Flowability and Bulk Density of Metal Powders (Hall, Gustavsson and Carney Flowmeter methods)

Complementary system
The Powder Testing Assistant™ PTA 100i complements the PTW by guiding users through test methods, automating calculations and recording results to reduce transcription errors and improve data integrity.

Angle of Repose module
Provides a method to assess frictional characteristics of powders and predict gravitational flow issues. Comprises a 100 mm diameter test platform and a digital height gauge (powder cone heights up to 145 mm readable on display). The tangent of the Angle of Repose (θ) is calculated from cone height divided by 50; the inverse tangent yields angle in degrees.
Pharmacopoeial Compliance:
Ph. Eur. Chapter 2.9.36; USP <1174>
Catalogue numbers / options:
1670 — Powder Testing station PTW Stand and Shutter
1674 — Angle of Repose Attachment
1676 — Stirrer Attachment for PTW
1677 — Anti-static Grounding Kit
Balance options: Kern Balance (D.P. 10000g max), Kern Balance (D.P. 400g max), Ohaus Balance (D.P. 440g max)
1680 — Powder Testing Assistant™ PTA 100i

Flow-Through an Orifice (Cylinder) module
Includes a stainless-steel cylinder (76 mm x 57 mm, 200 mL) with 20 interchangeable stainless-steel disks (precision orifices 4–36 mm). Tests can be run as quantitative flowability tests (fixed mass or fixed time) or to assess intrinsic flow properties via a Flowability Index based on comparative assessments.
Pharmacopoeial Compliance:
Ph. Eur. 2.9.36 and 2.9.16; USP <1174>
Catalogue numbers / options:
1670 — PTW Stand and Shutter
1671 — Cylinder Attachment
1678 — Timer Attachment
1677 — Anti-static Grounding Kit
Balance options: Kern DP 10000g, Kern DP 400g, Ohaus DP 440g
1680 — PTA 100i

Flow-Through an Orifice (Funnel) module
Designed per USP <1174> and Ph. Eur. 2.9.36 / 2.9.16 to simulate flow in a hopper or production equipment. Supplied with quick-change pharmaceutical-grade 316 stainless steel nozzles (5, 7, 10, 15 and 25 mm). Uses a user-friendly shutter system; optional Balance and Timer attachments simplify mass vs time tests.
Pharmacopoeial Compliance:
Ph. Eur. 2.9.36 and 2.9.16; USP <1174>
Catalogue numbers / options:
1670 — PTW Stand and Shutter
1672 — Funnel Attachment
1678 — Timer Attachment
1677 — Anti-static Grounding Kit
Balance options: Kern DP 10000g, Kern DP 400g, Ohaus DP 440g
1680 — PTA 100i

Bulk Density via Scott Volumeter
Scott Volumeter method suitable for a wide range of powders and granules; useful to determine bulk and tapped density and derive Carr’s Index and Hausner Ratio to support handling and storage assessments.
Regulatory Compliance:
Ph. Eur. 2.9.34; USP <616>; ISO-3923-2:1981; ASTM B329-20
Catalogue numbers / options:
6310 — Scott Volumeter and a Powder Testing Workstation PTW
1680 — PTA 100i

Metal Powder Flow module
Evaluates flowability of metal powders using Hall, Gustavsson and Carney Flowmeter methods to support processes such as filling, spreading and compaction. Designed to comply with ISO and ASTM standards for metallic powders.
ISO / ASTM Compliance:
ISO 3923:2018; ISO 4490:2018; ISO 13517:2020; ASTM B213-20; ASTM B417-22; ASTM B964-23
Catalogue numbers / options:
1670 — PTW Stand and Shutter
1681 — Metal Powder Testing Apparatus
1677 — Anti-static Grounding Kit
Balance options: Kern DP 10000g, Kern DP 400g, Ohaus DP 440g
1680 — PTA 100i

Usage notes
The PTW can be configured with a range of attachments (cylinder, funnel, timers, stirrer, grounding kit) and balance/timer options to support a variety of pharmacopoeial and industry test methods. It is suitable for manual or automated workflows and is designed for straightforward maintenance and cleaning.

Technical specifications

• Supported methods: Angle of Repose; Flow through orifice via Cylinder and Funnel; Bulk Density (Scott Volumeter & Shear Cell); Metal Powder Flow (Hall, Gustavsson, Carney).
• Regulatory compliance: USP, Ph. Eur., ASTM and ISO standards (see module-specific listings above).
• Core catalogue numbers: 1670 (PTW Stand & Shutter); 1671 (Cylinder attachment); 1672 (Funnel attachment); 1674 (Angle of Repose attachment); 1676 (Stirrer attachment); 1677 (Anti-static Grounding Kit); 1678 (Timer Attachment); 1680 (Powder Testing Assistant™ PTA 100i); 1681 (Metal Powder Testing Apparatus); 6310 (Scott Volumeter & PTW).
• Balance options: Kern D.P. 10000g max; Kern D.P. 400g max; Ohaus D.P. 440g max.
• Interchangeable precision orifices (cylinder disks) and quick-change funnel nozzles (5, 7, 10, 15, 25 mm).
• Designed for straightforward cleaning and maintenance; constructed from lightweight materials and pharmaceutical-grade stainless steel where appropriate.
• Compatible with Powder Testing Assistant PTA 100i for guided workflows, automated calculations and result recording.