Wholesale water quality test - nitrate test strips LH-S15

详情

Water quality test strips - Nitrate Test Paper
1.Specification
Name of test paper: Nitrate Test Paper
Model: LH-S*5
Type: semi-quantitative
Color reaction: white-pink
Gradation: ******5**************0mg/L NO3-
Packing: **0strips/tube
Shelf life: **3 years
Application: Nitrate test strips are the ideal choice to check nitrate levels quickly and safely in many fields such as foodstuff, aquarium, industrial and farmming etc.
   
2.Features
Simple operation: very simple to use, no need of extra material.
Accurate: classical color comparison method.
Fast: usually one sample takes **1minutes.
Reliable: use the sealed plastic bottle, long quality guarantee period, which last **3 years.

3.Operation
1. Insert the reactive part of Nitrate test paper into the testing liquid for 2 seconds.
2. Wait about *0 seconds and then compare the shown color with standard color chart. 
Notes
1. Please do not lay it into the circulating water for a long time.
2. Please keep the lip tightly of the unused test paper and preserve in cool place.
3. The PH of test liquid has to be controlled between **9.

4.Background of development
Nitrate is a byproduct of biological decay from plant and animal matter. High concentrations can be found in rural, farming areas where fertilizers are regularly used. Also, industrial effluents may contain Nitrate in higher levels. The EU threshold value is *0 mg/land can be safely controlled with the Nitrate test strips.
Foodstuff: Often different foods need to be testes for their nitrate content. Nitrate is often prevalent in preservatives or present in food due to over-fertilization. Excessive nitrate concentrations in food can have adverse effects on food quality and consumer health. Regular nitrate tests in the food industry are therefore very important.

Farming: Additionally, Farmers use this test to control the nitrogen content in soil to estimate the amount of fertilizer needed.
Aquarium: In ponds and aquariums Nitrate is often tested instead of Ammonium to control the water quality.

we have the following test paper ,which can be provided for your future reference:
4.Relevant Products
Hydrogen Peroxide Test Paper LH-S*1
Ammonia Nitrogen Test Paper LH-S*3
Chromate Test Paper LH-S*5
Ferrous Test Paper LH-S*7
Aluminum ion Test Paper LH-S*8
Zinc ion Test Paper LH-S*2
Nitrate Test Paper LH-S*5
Nitrites Test Paper LH-S*6
Peracetic Acid Test Paper LH-S*7
Phosphate Test Paper LH-S*9
Sulfate radical Test Paper LH-S*0
Sulfite Test Paper LH-S*1
Total hardness of water Test Paper LH-S*2
Vitamin C / Ascorbic acid Test Paper LH-S*3
Chloride Test Paper LH-S*5
Free Residual Chlorine Test Paper LH-S*6
Ozone in air Test Paper LH-S*8
Mercury ion Test Paper LH-S*9
Urea Test Paper LH-S*0
Formaldehyde in air Test Paper LH-S*3

More products, please contact us,
We are a manufacturer which has a long history of focusing on water test products, including refractometer, PH ORP TDS conductivity DO and chemistry in water test product, we are seeking local wholesaler to cooperate, welcom to ask for catalogue and quotation.