50pcs Water Test Strips Free Chlorine Hardness For Pool, Spa, Drinking, Aquarium

50pcs Water Test Strips Free Chlorine Hardne for Pool, Spa, Drinking, Aquarium OOTDTY 50pcs Water Test Strips Free Chlorine Hardne for Pool, Spa, Drinking, Aquarium 2in1 Water Quality Test Paper Description: Easy to Test! Fast, Easy and Accurate 2in1 Test: Free Chlorine , Hardne Test time: 60s Advantages: ability to resist VC interference Scope of application: suitable for various water quality tests of drinking water, aquariums, swimming pools and spas, industrial water, ponds, hot spring water, field water, etc. Package included: 50strips/bottle Water Test Strips Storage conditions and validity period: 1 Storage conditions: Store in a dry place at 2°C to 30°C, protected from light (stored at 2°C to 8°C). 2 Validity of the product: Store in a dry place at 2°C to 30°C, protected from light, valid for 24 months. 3 Valid period for opening the bottle: After opening, the cylinder cover needs to be sealed and placed in a dry place at 2℃～30℃, protected from light, and the validity period is 24 months.(We will ship according to the latest batch production date) Sample requirements: 1. Take 5-10ml of the sample, and take the supernatant for testing after standing. 2. The test is conducted at room temperature around 25°C. Testing method: 1. Immerse the reaction area of ​​the test strip in the solution to be tested for 1-2 seconds, remove the test strip, and shake off the exce water on it. 2. After 1 minute, compare the color of the reaction area of ​​the test strip with the color chart to determine the test value of the solution to be tested. 3. The colorimetric time should be controlled at about 60s, too long or too short will affect the reading. Precautions: 1. Do not touch the reaction end of the test paper when removing the test paper to avoid contaminating the test paper and affecting the test results. 2. After removing the required number of test strips, store the remaining test strips in a sealed and dark place. 3. The liquid to be tested should be kept as colorle or light color as poible. Before the liquid with too dark color is detected, activated carbon can be used for dehydration treatment. If the liquid to be tested is turbid, let it stand for a while, and then take the clear part for detection after settling. About shipping
Shipping and Packaging All itwill be double checked and well packed before sending.Itwill be dispatched within 2 business days after buyers pay for the order. It usually takes about 14 to 18 working days for delivering the package to the destination(for remote areas,it may take a little longer). 

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