Household Electric Wheelchair is an important Household Medical Equipment for the wounded, sick and disabled at home for rehabilitation, turnaround transportation, medical treatment, and outings. The Electric Wheelchair not only meets the needs of the physically disabled and the disabled, but more importantly, it is convenient for family members to move and take care of them. Patients, so that patients with the help of wheelchairs for physical exercise and participation in social activities.
Ordinary wheelchairs are generally composed of a foldable frame, front and rear wheels, left and right knee pads and footrests, left and right detachable armrests, handle brakes, seats, backrests with medical imaging data bags, bedpans, urine bag hooks, and electric standing. The hand-crank Rehabilitation Electric Wheelchair adds a hand-crank device on the basis of the ordinary wheelchair. On the basis of ordinary wheelchairs, the electric wheelchair adds an electronic power assist system, which reduces the physical exertion of the user. Based on the Electric Wheelchair, Folding Hospital Wheelchair adds positioning movement, standing movement, remote control movement and related Internet + assisted living.
Household Wheelchair,Folding Hospital Wheelchair,Folding Manual Wheelchair,Lightweight Folding Manual Wheelchair Haloxylon Ammodendron Medical Equipment Co., Ltd. , https://www.haloxylonl.com
Method for detecting whether calcium chloride is qualified by ATAGO refractometer
Purpose
When we buy calcium chloride, the manufacturer marks the purity, but the purity of the actual calcium chloride is the same as the purity of the label. Here we introduce the method of testing whether the calcium chloride is qualified:
Because the impurities such as sodium chloride, calcium sulfate, and potassium chloride are easily soluble in water, due to the isoionic effect of calcium chloride, these salts are less soluble in high-concentration calcium chloride solution, when calcium chloride is used. When the concentration is high, these salts are almost insoluble, so it is sufficient to observe the precipitation of the white salt after dissolving in 1:1 water. The more white insolubles, the lower the purity, and the high purity calcium chloride is free of white insolubles. At the same time, the halogenity of the supernatant is detected, and the high halogen content has a high calcium content, and vice versa. The quality of calcium chloride on the market is now uneven, and the price of calcium chloride of different quality is also very different. What we need is calcium chloride instead of impurities in the product, because sodium chloride and calcium sulfate in ordinary calcium chloride Potassium chloride does not react with calcium oxide. That is to say, the impurities of these mixed salts have a detrimental effect on your products, mainly due to the "halogenation" of your products due to the action of these impurities.
ATAGO PAL-41S calcium chloride concentration meter instrumentation to determine how high the purity of calcium chloride, the higher the purity, the closer the measured value of ATAGO PAL-41S calcium chloride concentration meter is closer to the theoretical value.
Method of operation
Instrument: One ten thousandth balance, ATAGO PAL-41S calcium chloride concentration meter
Materials: Several samples of calcium chloride, pure water, cups, sample spoons.
1, the cup is cleared
2, add 3g sample
3, add water to 100g
4. After mixing with the sample spoon, take a sample of 0.3ml calcium chloride solution with the sample spoon and add it to the PAL-41S sample tank. The instrument measurement results are as follows:
PAL-41S refractive method calcium chloride concentration meter : 2.8%. Measurement accuracy: ±0.2%
Balance ratio: 3.0003g/100.1846gX100%=2.995% (purity of calcium chloride sample is unknown)
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