Information on the most widely used ASTM standards within the materials testing industry
Model: UT2089A, ASTM D1922
Elmendorf Tearing Tester is designed for the tearing test of films, sheets, flexible PVC, PVDC, waterproof films, woven materials, polypropylene, polyester, paper, cardboard, textiles and nonwovens.
What is Elmendorf Tear testing?
Elmendorf Tear testing determines the force required to continue the tearing of an initial cut in sheet materials such as paper, plastic film, textile and non-woven.
General Introduction
Elmendorf Tearing Tester is designed for the tearing test of films, sheets, flexible PVC, PVDC, waterproof films, woven materials, polypropylene, polyester, paper, cardboard, textiles and nonwovens.
What is Elmendorf Tear testing?
Elmendorf Tear testing determines the force required to continue the tearing of an initial cut in sheet materials such as paper, plastic film, textile and non-woven.
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| After sample break |
Key Features
2.1. Automatic release of pendulum, high test efficiency
2.2. Sudden power-off data saving function, after power-on, the data before power-off can be retained and the test can be continued.
2.3. Cooperate with microcomputer software to communicate (separately purchased) ARM processor, integrated control board design, reduce the failure rate.
2.4. 7-inch color touch screen, Chinese and English operation, easy to understand and easy to operate.
Lift the pendulum up to a certain height to give it an initial potential energy. The pendulum tears the specimen while swinging down. Computer calculates the decreased energy caused by tearing to obtain the required force for tearing.
ASTM D295, ASTM D689, ASTM D751, ASTM D752, ASTM D4247, ASTM D1424, ASTM D1922, ASTM D5734
TAPPI T414, TAPPI T496
BS 2782, BS 4253, BS 4468
CPPA D.9
DIN 53862, DIN 53128
ISO 1974, ISO 6383-2, ISO 9290, ISO 13937-1
EN 21974
SCAN P11
Main Technical Specification
| Measuring range | 0~6400g (800g, 1600g, 3200g, 6400g) |
| Tearing force arm | 0.01mN |
| Tear initial angle | 104±2mm |
| Tearing distance | 27.5±1° |
| Cut length | 43±0.5mm |
| Longitudinal displacement of incision | 20mm |
| Paper clip size | 8mm |
| Maximum clamping area | 25*15mm |
| Clamping torque ratio | 6.48cm2 |
| Free swinging quantity | 2.2:0.7 |
| specimen size | min≥20,mid≥25,stand≥35. |
| Blade force arm ratio | (63±0.5 )mm x( 50±2)mm |
| Tear offset | Less than 10mm of the blade extension line |
| Distance between paper grippers | 2.8±0.5mm |
| Clamping method | The system can select horizontal and vertical testing statistics |
| air pressure | Manual bilateral clamping |
| HMI | 7.0in touch screen control, modular integrated thermal sensing function, testing automatic release of disc weight |
| Size | 410mmx310mmx550mm |
| Weight | 25kg |
Main accessories
| Item | Quantity |
| Tester Frame | 1 set |
| Basic pendulum testing weights | 1 set |
| calibration weights | 1 set |
| Power cord | 1 pc |
| Documents (Manual, packing list, certificate) | |
Standard
ISO 6383-2 Plastics — Film and sheeting — Determination of tear resistance — Part 2: Elmendorf method
ISO 6383-2 specifies the Elmendorf pendulum method to measure the force required to propagate an existing pre-cut slit across thin flexible plastic film and sheeting under standardized loading conditions.
ASTM D1922: Standard Test Method for Propagation Tear Resistance of Plastic Film and Thin Sheeting by Pendulum Method.
ASTM D1922 test method covers the determination of the average force to propagate tearing through a specified length of plastic film or nonrigid sheeting after the tear has been started, using an Elmendorf-type tearing tester. Two specimens are cited, a rectangular type, and one with a constant radius testing length. The latter shall be the preferred or referee specimen.
ASTM D1424 Standard Test Method for Tear Strength of Fabrics by Falling-Pendulum (Elmendorf) Apparatus
ASTM D1424 specifies the procedure for determining the force required to propagate a single tear through a fabric using the Elmendorf (falling-pendulum) tester. The test method is a single-tear (tongue) test. A rectangular specimen is slit partway along its length to create two tongues. The tear propagates from the slit across the width of the specimen.
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