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參考標(biāo)準(zhǔn)：EN166、EN168等等測(cè)試目的：主要測(cè)試鏡片的抗顆粒破壞性能，要求將鏡片以一定速度旋轉(zhuǎn)（250±10r/min），與一定量的石英砂（3kg）發(fā)生摩擦，進(jìn)而觀察鏡片的受損情況。測(cè)試方法： 1.將鏡片固定于儀器內(nèi)的吸盤上； 2.啟動(dòng)儀器，轉(zhuǎn)動(dòng)吸盤，使鏡片以250±10r/min的速度旋轉(zhuǎn)，將3kg石英砂從儀器頂部漏斗中倒入，使其慢慢漏完； 3.關(guān)掉電源，取下鏡片，觀察鏡片受損狀況。關(guān)鍵參數(shù)：1.導(dǎo)管長(zhǎng)度：1650mm2.導(dǎo)管直徑：120±3mm3. 試樣座角度：45±1°4. 吸盤打轉(zhuǎn)速度：250±10r/min5. 網(wǎng)眼：1.6mm6.電源：AC100~240V 50/60Hz7.尺寸:46×47×227 CM(長(zhǎng)×寬×高）8.重量:55 Kg
Reference standard: EN166 and EN168 test purposes: the main test lenses particle damage resistance, require that the lens at a certain speed rotation (250 + 10 r/min), with a certain amount of quartz sand (3 kg) friction, and then observe the lens for damage.Test method: 1. Fix the lens to the suction cup in the instrument;2. Start the instrument and rotate the suction cup to make the lens rotate at a speed of 250 plus or minus 10r/min, and the 3kg quartz sand is poured from the top funnel of the instrument to drain it slowly.3. Turn off the power, remove the lens, and observe the damage of the lens.Key parameters: 1. The pipe length: 1650 was. Vessel diameter: 120 + 3 mm3. Sample seat Angle: 45 + 1 ° 4. Chuck is spinning speed: 250 + 10 r/min5. Mesh: 1.6 mm6. Power supply: 50/60 AC100 ~ 240 v hz7. Size: 46 * 47 * 227 CM (length x width x height) 8. Weight: 55 Kg
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