1. Calibration of Karl's body reagent Accurate weighing 10mg (usually can be added through a 10μl micro-injector) distilled water is added to the titration tank below the liquid level through the feeding port, then press the “titration start†button, the instrument will automatically titrate to the end point, at this time the instrument shows the consumption of 10mg water consumption of Kärner The number of milliliters of the solution was repeated several times and the average value was taken. F=w/A, where: F is the titer, that is, the amount of water per ml of Karlelberg solution: W is the weight of water, the unit is mg; A is the calcined liquid consumed by the unit, the unit is ml . 2, the determination of the sample The accurately weighed test solution, solid or powder is added to the titration cell through the feed hole, and the titration is carried out according to the “titration start†button. After reaching the end point, the water content of the sample to be tested is calculated according to the following formula: (water)%=A*F/W*100%· Where: A is the amount of ml of Karl's body fluid consumed by the sample; F is the titer of Karl Fischer; w is the weight (mg) of the sample. Ventilate can be used for lace wig, toupee, closure, make wigs, lace front wigs and add hair to bad spots or repair hairline Crochet Hook,Dreadlocks Crochet Hook,Lace Wig Ventilating Needle,Dread Locks Crochet Needles Xuchang Le Yi De Import And Export Trade Co., Ltd. , https://www.synthetichairs.com
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