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glucose test strip vials moisture absorption rate standard and determination method

Sep 20 , 2019

The moisture absorption rate of the glucose test strip vials desiccant will affect the validity of the test paper and the efficiency of the test results. The desiccant moisture absorption rate is also an important test standard for the test paper bottle. The main components are silica gel, molecular sieve and a mixture of the two (4:6), silica gel. It is suitable for long-term stable adsorption of water molecules; and molecular sieve is more suitable for effectively controlling water molecule content in a short time.


glucose test strip vials moisture absorption rate standard and determination method

glucose test strip container

Glucose test strip vial desiccant saturated moisture absorption rate in the environment with relative humidity less than 75%, take out 5 finished bottle caps from the same bag, the precision is heavy, W0, put the cap into the temperature of 23 degrees ± 2 degrees, the relative humidity is 75 In the constant temperature and humidity chamber of %±5%, take out after the 8th day, weigh W1, carefully remove the cardboard, and take out the desiccant desiccant: wipe the cardboard and cap clean and combine and weigh W2. The desiccant of the silica gel, the macromolecular sieve and the mixture of the two (4:6) desiccant was not less than 30%, 19%, and 24%, respectively, as calculated by the following formula.

The desiccant has a moisture absorption rate in an environment with a relative humidity of less than 60%. Five finished caps are taken from the same bag and the weight is heavy. The cap is placed at a temperature of 25 degrees ± 2 degrees and the relative humidity is 60%. In a ±5% constant temperature and humidity chamber, take it out after hours, weigh W1, carefully remove the cardboard, and take out the moisture-absorbing desiccant: wipe the cardboard and cap clean and combine the weighing W2. The saturated moisture absorption rate of the desiccant of silica gel, macromolecular sieve and a mixture thereof (4:6) was not less than 3%, 4.5%, 3.5%, respectively, as calculated by the following formula.

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