Total Acid of Vinegar Rapid Detection Kit Instruction Product No.: YP-14-100

First, the method principle:

titrated with standard alkali solution, the content of total acid of vinegar was calculated.

Second, the scope of application:

This kit is suitable for the determination of total acid content in vinegar.

three, product composition:

serial number

name

quantity

note

1

reagent A

1 bottle

2

reagent B

3 bottle

3

sample cup

10

can be used repeatedly after cleaning

4

manual

1 copies

four, product specifications:

100 times/box

five, detection steps:

1, take 1 ml of sample in 10 ml centrifuge tube, add pure water bandwidth evaluation to 10 ml, shake well, as the sample to be tested;

2, take 1 ml of sample to be tested in the sample cup, add 3 ml of pure water, mix well, add 1 drop of reagent A vertically, shake well;

3, add reagent B dropwise and write down the number of drops, after each addition of 1 drop, shake well until the solution in the sample cup turns purple (colorless) Or light vinegar) or brown-red (dark vinegar), record the number of drops of the added reagent B.

calculate the content of each drop of reagent B equivalent to 0.6 g/100 mL of total acid under the same sampling amount.

6. Precautions:

Reagent B is corrosive, and care should be taken during operation. Reagent B must be added vertically and slowly when adding dropwise, and the sample to be tested should be fully shaken after each drop.

7. Product storage conditions and shelf life:

Storage conditions: cool and dark dry storage

Valid period: 1 year