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Application of Grips and Fixtures
Grips and fixtures are key components for material testing. If you use the wrong grips and fixtures, it mayaffectthetest results. SINOTEST provides various grips and fixtures. This catalog includes common productsthatarecompatible with samples defined by commonly used testing standards (such as ASTM, ISO, DN, GB, BS, JIS, GOST,etc.). Product Compatibility
The grips and fixtures listed in this manual can be directly used for DF series UTM. If there are special requirements,you will need grip adapters to achieve your targets. Selection of Grips and Fixtures
Selecting grips and fixtures are very complex, but the main focus is on the following three aspects:
1. Test load
It is recommended that the grips be subjected to a force greater than 1.25 times the expected maximumtestload,which means that the grips can be operated at 80% of its capacity. The capacity of the load cell shouldmatchthatofthe grip (i.e. a 50 kN grip should use a load cell with a rated value of 50 kN). This can effectively ensuretheaccuracyof the results and a long-lasting service life. 2. Test standard
Test standards define sample size and shape. Usually, various grips & fixtures can be selected. If youareunsure,please provide specific test standard code. 3. Specimen and test method
Except sample size and shape, surface texture is also an important factor to consider when selectingfixtures.Inatensile test, improper grip selection often leads to fixture sliding, premature damage, and rupture. Tohelpdeterminethe correct fixture, please send us sample details and test methods.