Precautions for protective clothing drop hammer tearing instrument
The protective clothing drop weight tearing instrument is mainly used to measure the tear resistance of various woven fabrics such as protective clothing and non-woven fabrics. It can also be used to measure the tear resistance of thick paper, plastic cloth, electrical tape, etc. It is mainly the national standard GB/T3917.1 'Impact Pendulum Method for Determination of Fabric Tear'. The instrument is composed of main parts such as machine base, support base and sector hammer. (Hong Kong) Co., Ltd. is a manufacturer, and customers in need are welcome Timely call. In addition, in the process of use, the R&D engineer of (Hong Kong) Co., Ltd. stated that some matters needing attention are as follows: Installation precautions: 1. In order to prevent the fan-shaped hammer from swinging during transportation, the instrument uses a screw to connect the fan-shaped hammer to the The support base is fixed and must be removed before use. 2. After removing the fixing screws, it must be installed on a solid workbench with good shock absorption. It is best to pad a 2mm~3mm thick hard rubber plate between the instrument and the workbench. Maintenance precautions: 1. The instrument should be wiped clean regularly, and the mandrel pointer sliding sleeve should be regularly refueled. However, the pointer and pointer baffle shall not have grease to affect the indication error. 2. The instrument should be placed in a vibration-free and clean work room. When not in use, remove the large and small weighting hammers A, B and long and short screws and store them well. The instrument should also be covered with a protective cover to prevent dust from falling into it. . 3. The weight-increasing hammer must not collide, so as to avoid the change of its center of mass position and weight. Main parameters: 1. Tear force range: A hammer: 0～16N; B hammer: 0～32N; C hammer: 0～64N; 2. Force measurement accuracy:≤±1 division; 3. Sample size: 100(L)×63(W)mm; 4. Incision length: 20±0.2mm; 5. Tear length: 43mm; 6. Combined test weights to meet different test requirements; 7. With 200cN, 400cN, 800cN, 1600cN, 3200cN, 6800cN, 13600cN and 30000cN test ranges; 8. The test unit is MN , CN, N, G, KG, OZ, LB are optional.
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Personal protective equipment must meet specific performance requirements before it can be used in demanding workplace environments. ISO, EN, and ASTM standards provide important test methods and performance requirements for different PPE categories. However, the applicable standard depends on the product, intended application, target market, and specific protection requirements.
This guide explains the role of ISO, EN, and ASTM standards in PPE testing and introduces common requirements for safety footwear, protective gloves, protective clothing, masks, and safety helmets. It also explains how laboratories can select suitable PPE testing equipment according to the applicable test method.
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