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Reproducible Powder Testing
Reproducibility, measurement sensitivity, and the usefulness of an analysis are inextricably linked. If a technique or instrument exhibits poor reproducibility, then measurements are ‘noisy’ and only gross trends or differences can be detected. As the pharmaceutical industry strives for greater knowledge of its processes and products, this becomes increasingly limiting.
Guest Column | 7/28/2011
Overcoming Powder Testing Limitations
Flowability – the ease with which a powder flows – is arguably the most important characteristic of powder behavior. By Tim Freeman, Freeman Technology
Guest Column | 5/11/2011
Guest Column: Overcoming Powder Testing Limitations
Flowability — the ease with which a powder flows — is arguably the most important characteristic of powder behavior. Today, the increasing emphasis on more efficient manufacture and continuous processing intensifies the need for reliable, relevant, and precise flowability measurement. By Tim Freeman, Freeman Technology
Guest Column | 5/11/2011
Evaluating The Powder Testing Toolkit: Shear Testing
In this series of editorials, I’m looking at how well the traditional powder testing toolkit meets the requirements of today’s powder processors. In the last editorial, I put tapped-density methods under the spotlight, and now it’s time to consider shear testing. By Tim Freeman, Freeman Technology
Guest Column | 11/11/2011
Evaluating The Powder Testing Toolkit: Tapped Density
In earlier editorials, I’ve examined modern industrial requirements for powder characterization and assessed how well different test methods answer to the resulting brief. In this editorial, I want to focus on tapped density methods and their advantages and limitations when it comes to investigating powder flow properties.
Article | 9/2/2011 | Freeman Technology Ltd
Powder Testing Tools For A New Manufacturing Model
In this new series of editorials I'm going to ask the question “How well does the powder testing toolkit used by the pharmaceutical industry meet its current needs?” In seeking answers, I'm going to start by looking at what the industry asks of its powder characterization techniques, what information it requires, and why. Taking challenges that the pharmaceutical industry faces into account helps to set a specification against which to judge different instrumentation and techniques. By Tim Freeman, Freeman Technology
Guest Column | 3/25/2011
Tim Freeman Series On The Powder Testing Toolkit
The pharmaceutical industry is currently undergoing a seismic shift in terms of manufacturing practice. The advent of Quality by Design and the Process Analytical Technology (PAT) initiative invite the adoption of smarter ways of manufacturing, and the engineering of more efficient processes that consistently produce materials of the necessary quality.
Guest Column | 1/23/2012
Introducing A New Solution For Uniaxial Powder Testing
For many years the routine use of uniaxial testing for powder characterization has been compromised by the practical difficulties associated with its application. By Tim Freeman, Freeman Technology
White Paper | 2/14/2011 | Freeman Technology Ltd
White Paper: Introducing A New Solution For Uniaxial Powder Testing
For many years the routine use of uniaxial testing for powder characterization has been compromised by the practical difficulties associated with its application. By Tim Freeman, Freeman Technology
White Paper | 2/14/2011 | Freeman Technology Ltd
Guest Column: Powder Testing Tools For A New Manufacturing Model
In this new series of editorials I'm going to ask the question “How well does the powder testing toolkit used by the pharmaceutical industry meet its current needs?” In seeking answers, I'm going to start by looking at what the industry asks of its powder characterization techniques, what information it requires, and why. By Tim Freeman, Freeman Technology
Article | 3/25/2011 | Freeman Technology Ltd
New Article Offers Perspective On Freeman Technology’s Decade In Powder Testing
Recently published, and now available for download, ‘Reflecting on Powder Testing: Ten Years of Making Powders and Processes Fit’ is a personal perspective from Tim Freeman, director of operations at Freeman Technology.
News | 6/22/2011 | Freeman Technology Ltd
Freeman Technology To Launch New Reference Standard For Powder Testing At PTXi 2010
At PTXi 2010 (4-6 May; Rosemont IL, USA) Freeman Technology will present a new reference standard for use with the company’s FT4 powder tester. The FT4 uses patented dynamic methodology, a fully automated shear cell and several bulk property tests, including density, compressibility and permeability to quantify powder properties in terms of flow and processability.
News | 4/12/2010 | Freeman Technology Ltd
Powder Characterization For Modern Manufacturing
In this series, I’ve been looking at traditional powder testing techniques, such as tapped density methods and shear analysis, to see how they fit with today’s powder processing needs. By Tim Freeman, Freeman Technology
Article | 1/17/2012 | Freeman Technology Ltd
Datasheet: PTG-S3 - Powder Characterization System
The PTG-S3 powder testing system is used to measure the flow behaviour of granules and powders in compliance with the EP (DAB) pharmacopoeia. This instrument is suitable for testing powder flow time, the measurement of the cone angle of the collected powder mound, measuring the weight, calculating the density and the volume of the powder cone as well as the EP "flowability" results which is measure the flow time of 100 g of sample through a specified pouring nozzle...
Datasheet | 12/28/2005 | Pharma Test Apparatebau GmbH
Powder Characterization For Modern Manufacturing
In this series, I’ve been looking at traditional powder testing techniques, such as tapped density methods and shear analysis, to see how they fit with today’s powder processing needs. Greater efficiency is the goal now dominating pretty much every area of production, so I really do feel it’s appropriate to question whether we have the right powder characterization tools for modern applications. By Tim Freeman, Freeman Technology
Guest Column | 1/11/2012
Exploring The Impact Of Air On Bulk Powder Properties
In this editorial, which continues the series on variables that can impact powder behavior, I’m examining the influence of air. In some unit operations, such as pneumatic conveying or fluid-bed processing, air is intentionally introduced. However, in many instances the amount of air in a powder is both unknown and uncontrolled. Across a plant, powders may entrain air, when being discharged from one vessel into another, or during mixing, for example, or lose it, when static or subjected to vibration. The propensity of powders to change their behaviour as a function of being subjected to each of these environments varies from material to material, making air content a common root cause of variability, in processing, and in measurement too. By Tim Freeman, Freeman Technology
Guest Column | 11/6/2012 | Request More Information
Powder Characterization Techniques For Dry Powder Inhaler Applications
At the very heart of dry powder inhaler technology lies a demanding powder engineering challenge. Particles in the sub-5 micron range - the ideal for deposition in the lung - tend to be cohesive, making them difficult to handle and disperse. By Tim Freeman, Freeman Technology
Article | 5/3/2010 | Freeman Technology Ltd
Guest Colulmn: Powder Characterization Techniques For Dry Powder Inhaler Applications
At the very heart of dry powder inhaler technology lies a demanding powder engineering challenge. Particles in the sub-5 micron range - the ideal for deposition in the lung - tend to be cohesive, making them difficult to handle and disperse.By Tim Freeman, Freeman Technology
Article | 5/3/2010 | Freeman Technology Ltd
Video: FT4 Powder Rheometer: FT4 Dynamic Flow Mode
By introducing a dynamic method of measuring powder flow properties, Freeman Technology has made possible the direct comparison of flowability data for different powders. A program of continuing development makes today's FT4 Powder Rheometer, a sophisticated universal powder testing system that is helping address a very broad range of powder processing challenges.
Video | 10/22/2007 | Freeman Technology Ltd
Powder Characterization For Selecting Material Of Construction
For powder processors material of construction or surface finish choice is an important element of design, critical to achieving the fundamental compatibility between powders and process that underpins successful long term performance. By Tim Freeman, Freeman Technology
Guest Column | 2/26/2010