Range of use: It is suitable for the determination of the effective chlorine content of chlorine-containing disinfectant. The effective chlorine content of the measured solution should be between 50mg/L-2000mg/L, and the pH value should not exceed 9.5. How to use: Take a piece of test paper from the paper-drawing port, pour it into the test liquid, take it out immediately, and compare it with the color chart within 15 seconds. Note: The test paper exposed to the air at the paper-drawing port of the product is easy to change color, cut off the discolored part and continue to use it. Can not be stacked with chlorine-containing agents. Keep away from light and store in a cool place. Production Date: May 06, 2020 Valid until: February 04, 2021

Range of use: It is suitable for the determination of the effective chlorine content of chlorine-containing disinfectant. The effective chlorine content of the measured solution should be between 50mg/L-2000mg/L, and the pH value should not exceed 9.5. How to use: Take a piece of test paper from the paper-drawing port, pour it into the test liquid, take it out immediately, and compare it with the color chart within 15 seconds. Note: The test paper exposed to the air at the paper-drawing port of the product is easy to change color, cut off the discolored part and continue to use it. Can not be stacked with chlorine-containing agents. Keep away from light and store in a cool place. Production Date: May 06, 2020 Valid until: February 04, 2021

Range of use: It is suitable for the determination of the effective chlorine content of chlorine-containing disinfectant. The effective chlorine content of the measured solution should be between 50mg/L-2000mg/L, and the pH value should not exceed 9.5. How to use: Take a piece of test paper from the paper-drawing port, pour it into the test liquid, take it out immediately, and compare it with the color chart within 15 seconds. Note: The test paper exposed to the air at the paper-drawing port of the product is easy to change color, cut off the discolored part and continue to use it. Can not be stacked with chlorine-containing agents. Keep away from light and store in a cool place. Production Date: May 06, 2020 Valid until: February 04, 2021

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