試験方法

Shrinkage Testing Machine for Plastic Sheet What is Shrinkage Testing? Shrinkage testing measures the dimensional changes of materials when exposed to heat. This test is crucial for understanding how materials, especially plastic sheets, behave under thermal stress. By evaluating shrinkage, manufacturers can predict how materials will perform in real-world applications, ensuring quality and reliability. Definition and purpose Shrinkage testing involves heating a material, such as a plastic sheet, to a specific temperature and measuring the resulting dimensional changes. The purpose is to assess the material’s thermal stability and predict its behavior during processing or in end-use conditions. Typical materials tested (focus on plastic sheets) While various materials can undergo shrinkage …

Shrinkage Testing Machine for Plastic Sheet 続きを読む "

Precise Film Shrinkage Tester for Plastic Packaging 1. Product Overview: Film Shrinkage Tester ASTM D2732 Film shrinkage tester is a specialized instrument designed to measure the thermal shrinkage properties of plastic films. This test is crucial for evaluating how plastic packaging materials respond to heat, ensuring they maintain their integrity and performance under various conditions. The film shrinkage tester provides precise and reliable data, which is essential for quality control and product development in industries that rely heavily on plastic packaging. The importance of a film shrinkage tester in the context of plastic packaging cannot be overstated. It helps manufacturers ensure that their packaging materials will perform well under thermal …

Precise Film Shrinkage Tester for Plastic Packaging 続きを読む "

Needle Penetration Test Method for Rubber Stoppers Needle penetration test method assesses the penetrability of rubber stoppers, ensuring they can be pierced by needles within the suitable force. 1. Understanding Rubber Stopper Penetrability According to ISO 8871-5, penetrability denotes the force required for penetrating an elastomeric closure. The standard delineates the testing process as follows: Many pharmaceutical elastomeric closures are utilized alongside injection needles. Assessing the force necessary for penetration is critical in determining the closure’s suitability for its intended application. The testing protocol includes fixing the injection needle and seal onto the instrument, applying vertical force until penetration, and documenting the maximum force. 2. Overview of ISO 8871-5 and …

Needle Penetration Test Method for Rubber Stoppers 続きを読む "