Safety comes in seven cycles

    The certificate
    The Containment Guard is the first quality certificate to determine the retention performance of containment tableting systems even before the operator's final risk assessment. The Containment Guard level is derived from the results of a standardized exposure measuring process. Pharmaceutical manufacturers can therefore compare containment installations from different suppliers meaningfully.

    The method
    The exposure measurements are based on the ISPE guidelines for evaluating the particle retention capacity of pharmaceutical equipment (Assessing the Particulate Containment Performance of Pharmaceutical Equipment, APCPPE). For the sake of ensuring wider applicability, the APCPPE guidelines have been kept general, and can be applied to various plant types.

    Further measuring specifications
    The Containment Guard adds additional measurement specifications to this, in order to maximize the value for tableting. It specifies, for example, where measuring probes or operators should be located during the measuring procedure.

    Seven cyclesstep by step

    The measurement procedure involves the set-up of tablet presses and process equipment in every conceivable configuration. They generally run through a sequence of seven measurement cycles, where by retention during inward and outward transfer of tools or in the event of a power failure is established. Each of the cycles is repeated three times per sequence.

    The test plant

    The 2090i WiP tablet press with isolator stands for exposure measurements in line with the Containment Guard at the Fette Compacting Competence Center in Schwarzenbek.

    The 2090i WiP tablet press with isolator – Zero measurement

    Zero measurement

    The background level of the test substance in the measurement room is determined at the beginning of the measurement procedure. The subsequent test cycles can be more effectively classified with this information for reference.

    The 2090i WiP tablet press with isolator – Production


    The operator sets up the tablet press and begins operation. The machine runs normally for half an hour in order to measure the retention performance during ongoing production. Typical processes, such as the withdrawal of sample tablets for quality control, are also tested in this cycle.

    The 2090i WiP tablet press with isolator – Introduction and removal of components

    Introduction and removal of components

    The operator transfers the punches and tools into the machine through the Rapid Transfer Port (RTP). He then uses the gloveports to change the punches. The tools are taken out of the press again at the end of the cycle.

    The 2090i WiP tablet press with isolator – Fault test

    Fault test

    The fault test simulates a power failure. The tablet press and the filter unit are first run in regular operation for five minutes, and are then switched off. The emergency system takes over the air management system from this point on. The measurement then takes another 25 minutes.

    The 2090i WiP tablet press with isolator – Cleaning the interior

    Cleaning the interior

    The operator reaches into the interior of the machine through the gloveports, and cleans the interior of the press room as well as the isolator, in relevant cases. Depending on the press, a manual washing gun is also passed through the port, and the components are cleaned again manually. The washing program then starts. The machine’s window flaps remain closed the whole time.


    Removing process equipment

    The upward deduster and the Checkmaster are disengaged. There are two measurement scenarios for this step: tablet presses with isolator and tablet presses with washable process equipment. This step is omitted if a machine with an isolator is measured, and the process proceeds from cycle 5 straight to cycle 7.

    he 2090i WiP tablet press with isolator – Removing the Fill-O-Matic

    Removing the Fill-O-Matic

    The operator opens the window flaps and dismantles the Fill-O-Matic and the punches. The press is wiped out wet.

    Fette Compacting's Sven Hems on customers' benefit from the Containment Guard

    Mr. Hems, what advantages does Containment Guard have for customers?
    For the very first time, Containment Guard makes it possible to compare and evaluate containment machines. Before this, customers could only use the SMEPAC Guideline which is not specific to tablet production. With our Containment Guard measurements, we have defined the corresponding parameters and closed this gap. Our Containment Guard app also uses these measurement results.

    What does this app do?
    It is a type of configurator for containment machines. Our sales experts can offer and explain to customers an individual system solution during an early project phase. The starting point is always the requisite retention rate of the new press. Then the app guides the user through Module Technology, Competence, and Service, and provides information on the solutions we offer.

    What significance does Containment Guard have for pharmaceutical production?
    Fette Compacting has been involved in all major industry developments and its innovations have often defined new standards. Containment Guard is now set to become the standard in the production of active to highly-active ingredients. It should enable customers to include their suppliers in a project at an early stage. That’s why we have standardized the portfolio for all containment levels while leaving sufficient scope for the customer to get involved in design in line with his own preferences.



    Sven Hems
    Manager Containment Systems
    T +49415112862

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