| Customization: | Available |
|---|---|
| CAS No.: | Water Test Kit |
| Formula: | Citric Acid Test Kit |
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
Product: 090390 Citric Acid Test Kit
Features of product:
Quick and easy
Operating in accordance with the instructions, users can complete the total alkalinity test independently without specialized training. 5 minutes is enough to complete the analysis of one water sample.
Accurate and reliable
Determination results with this method are in accordance with the results with the standard method. It can be used as an alternative method to the standard method.
Quantitative packing
The kit can be used for 50 times. It is small, light and easy to carry.
How to use?
Nitrite Test specification
1. Fill a clean test tube with sample to the 15-mL mark.
2. Add the contents of one Nitrite () Reagent to the tube, cap the tube and shake for 30 seconds. Stand for 5 minutes.
3. Add the contents of one Nitrite () Reagent to the tube, cap the tube and shake to dissolve, Stand for 10 minutes.
4. Open the cap, place the tube in 1cm above the blank of the standard card, compare the color from top to bottom, the standard color level has the same color as observed from the tube shows the concentration of nitrite in the sample.
Notes:
The ions lists below have been tested to interfere the result.
1. Oxidant and deoxidant.
2. Cu2+, Fe2+ and nitrite can reduce the result.
3. Pb, Hg and Ag can interfere because the sedimentation.
Package:
Packing material:Package is 50 test / box
1.R & D team to provide technical support.
2.Provide packaging, labeling OEM customization.
Q1: When doing hardness testing of water samples ,why color keep unchanged after adding 100ml of water ?
A1: The hardness of the water sample may belong to low hardness,it out of testing range range of reagents, lower hardness reagent is recommended to be used.
Q2: When doing chlorine (or ozone, total chlorine) testing of for water samples,the longer time, the deeper the color, and why?
A2: Because the containing DPD reagent may react with the air oxidation, it is proposed in strict accordance with the test instructions, to control the reaction time.
Q3: Why the water sample shows pink after adding DPD chlorine (or total chlorine, ozone) reagent ,and then faded to become colorless?
A3: The reason may be that the concentration of chlorine (total chlorine, ozone) in the water is too high, dilution is recommended before testing.
){kind=link}