The DRK713 penetration time tester is mainly used for the penetration time test of textile acid-base chemical protective clothing. It is a must for acid-base protective clothing manufacturers to apply for production license and LA (Labor Safety) certification. Equipped with testing equipment for protective clothing for acid and alkali chemicals. Meet the standard: GB24540-2009; Features: 1. Using the principle of conductive method and automatic timing device, the operation is simple and convenient, and the test efficiency is high. 2. The test is automatically timed, and the penetrating automatic sound alarm prompt occurs. 3. The LED digital clearly displays the penetration time, which is convenient for observing and recording the test results. 4. The equipment is small in size, light in weight, and easy to carry and test at any time. technical parameter: 1. Test conditions: temperature: 17～30℃, relative humidity: 65%±2%. 2. Sample size: 100mm×100mm. Test solution: 0.1ml. 4. Timing accuracy: 0.01s, 0.1s and 1s can be set and selected by yourself. Note: Due to technological progress, the information will be changed without notice. The product is subject to the actual product in the later period.