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West Learning Center
Gain foundational knowledge, from entry to expert level, of packaging and delivery systems from West...
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Combination Products
Guidance on development of drug-medical devices combinations.
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Container Closure Integrity
Testing and information on delivering your drug clean and safe.
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How to protect your drugs from container E&L problems.
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European Medicines Agency 2017 Annual Report

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New Articles
Probable Material Extractables List: 4040/40 Gray
TR 2021/238: 4040/40 Lyophilization Stoppers - Aging and Gamma Irradiation Study
TR 2021/237: Evaluation of Machine Performance of 4040/40 Lyophilization Stoppers
Risk Factors to Consider when Choosing the Optimal Stopper for Lyophilization
The Contribution of Rubber Adhesion to Sealability at Deep Freeze Temperatures
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Particles from Syringes Used for Intravitreal Injections
The Contribution of Rubber Adhesion to Sealability at Deep Freeze Temperatures
Elastomers 101, part 1: What is an elastomer?
Sample Certificate for Westar® Select 4040/40 Gray 20mm Lyo Stopper

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FAQ
Formulation Characteristics Comparison of Common Stoppers
Overview of FluroTec® and B2-Coating
At A Glance: Global Compendial Requirements for Elastomeric Components
Daikyo Crystal Zenith® vial and Delivery Systems: Machining Guidance
Container Closure Integrity of AccelTRA™ 4031/45 Stoppers- ISO Glass Vial Systems
Standard Elastomeric Component Reference for US and European Designed Stoppers
NovaPure Overview
Selection, Preparation and Storage of Lyophilization Stoppers for Moisture-Sensitive Drug Products
Packaging of West Ready-to-Sterilize and Ready-to-Use Parenteral Packaging Components
West 4031/45 Gray Machinability Assessment

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