Storage conditions: Store at 2℃ to 30℃ in a dry, dark place (preserve at 2℃ to 8℃).

Product shelf life: Store at 2℃ to 30℃ in a dry and dark place, with a shelf life of 24 months.

3. After opening, the bottle cap must be sealed and stored in a dry place at 2℃ to 30℃ away from light, please use it up as soon as possible.

"Sample Requirements":

1. Take 5-10ml of the sample, and after standing still, take the supernatant for testing.

2. The test is conducted at about 25℃.

【Inspection Method】:

1. Immerse the reaction area of the test strip into the solution to be tested for 1-2 seconds, then remove the test strip and blot away any excess moisture.

2, 30 seconds later, compare the reaction area of the test strip with the color of the color card to determine the test value of the sample solution.

3. Color comparison time should be controlled within 60 seconds, as both excessive length and short duration can affect the reading.

【注意事项】：

1. When removing the test strip, please do not touch the reaction end of the test strip to avoid contamination, which may affect the test results.

2. After removing the required number of test strips, seal the remaining test strips in a light-resistant container for storage.

3. The liquid to be tested should be as colorless or light in color as possible. If the liquid is too dark in color, it can be treated with activated carbon to adsorb and dehydrate before testing. If the liquid is relatively turbid, it should be allowed to settle for a while, and then the clear portion after settling can be used for testing.