Aquaculture freshwater fish, shrimp, crab, loach, eel, snail, soft-shelled turtle, leech clam, oyster shell, water quality testing b

1. Take the water sample to be tested, dip in the reagent, stir 2. Put the water sample into the test tube 3. Put the test tube into the colorimeter 4. Turn on the colorimeter switch 5. Insert the corresponding color card into the card slot 6. According to the color of the water sample, compare the color card

Instructions for use of various reagents

Test item: Test the PH value of water Method: 1. Take 30ml water sample 2. Drop 3-4 drops of PH reagent in the water sample, shake well 3. Compare the color of the water with the color card to get the PH value Test the value of the water.

Test item: detection of dissolved oxygen content in water Usage: 1. Take 10 ml of water sample, 2. Drop 5 drops of (I) reagent in the water sample and shake well, 3. Drop 5 drops of (II) reagent in the water sample and shake Mix well (wait 5 minutes), 4. Add 5 drops of reagent (III) and shake until the precipitate dissolves. (If not dissolved, add reagent until dissolved) A few drops. 5. Compare the color of the water sample with the color of the color card to know the dissolved oxygen content.

Test item: Determination of total ammonia and amine salt concentration in water sample (calculated as nitrogen) Usage: 1. Take 5ml water sample 2. Drop 5 drops of (I) reagent in the water sample, shake well 3. Drop 5 drops of (II) ) ) Reagents in the water sample & shake well 4. After standing for 5 minutes, visually compare with the standard color card from top to bottom. The color is similar, which is the content of ammonia nitrogen in the water (mg/L)

Test item: used to test the nitrite content in water. Usage: 1. Take 5ml water sample 2. Drop 10 drops of reagent in the water sample, shake well, let it stand for 5 minutes 3. According to the color of the water sample, the color value can be get.

Test item: used to test the nitrite content in water Uses: 1. 1. Clean the measuring cup with the water sample to be tested, then take 5ml of water sample and add 2 drops of reagent to the water sample ① and shake it evenly to turn green 2. Slowly Add reagent ② drop by drop, shake each drop gently until the water sample turns gray-green, indicating that the end point is approaching, add slowly and carefully until it just turns wine red 3. Record the number of drops of reagent ②, and check it from the result conversion table Total Alkalinity Value Total Alkalinity=10*N(mg/L).

Test item: used to test the nitrite content in water. Method of use: 1. Take 5ml of water sample and add it to the water sample, add 5 drops of sulfide reagent Ⅰ 2. Add 5 drops of sulfide reagent Ⅱ, cover the test cup, Gently turn it upside down once, and let it stand for 5 minutes 3. Control the reading of the colorimetric card, and measure the sulfide content by colorimetrically from bottom to top