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Help CenterWholesale Nitrite Detection / Test Tube LH-3011 in Low Price
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Water quality test - nitrite test Tube
1. Specification
Product Name: Nitrite test Tube
Model: LH-3011
Type: semi-quantitative
Color reaction: none - purple
Gradation: 0-0.05-0.1-0.2-0.5-1-3mg/L (NO2-)
Packing: 50pcs/box
Shelf life: at least 1.5 year
Application: Nitrite test tube is ideal to use for water control due to the quick and easy procedure, also important in quality controls of food, e.g. meats and spinach.
2. Operation
1. Pull out the filament of tube
2. Evict the air.
3. Insert the tube into testing liquid, stop inhaling when it is half around.
4. Rock 5 to 6 times slightly, after the specified time (please rock 1 to 2 times in the halfway), compared with the standard colorimetric card.
Notes:1) PH of the testing liquid must between 6-9.
3. Feature:
1. Convenient: small size and light weight.
2. Fast: 3-5minutes per sample.
3. Precise: development depends on standard method.
4. Simple operation: no need extra material or instrument, easy to operate
5. Sealed by Aluminum foil, long shelf life.
4. Background of development
Nitrite is a contamination indicator and therefore an important parameter that is tested regularly in a wide variety of settings. To determine the nitrite concentration, very often nitrite test strips are used.
Nitrite is an undesired byproduct in cooling lubricants. It allows the formation of carcinogenic compounds. Cooling lubricants are therefore regularly tested with nitrite test kits.
Additionally, nitrite is an important parameter for aquacultures and fish farming. Nitrite is formed in the decomposition of organic material. High levels can lead to the disruption of filtration units. Moreover, long-term exposure can be harmful to fish. In natural and drinking water Nitrite can lead to infant mortality and dead aquatic life. The EPA primary drinking water standard is 1 mg/L. Nitrite test kits are ideal to use for water control due to the quick and easy procedure.
Nitrite test kits are also important in quality controls of food, e.g. meats and spinach. Excessive amounts of nitrite can potentially be harmful to consumers, especially to infants.
Q1: Why choose us?
A: 1. We have our own factory with strong R&D center and QA team which can make sure your goods can be sent out on time and in superior quality.
2. We have experienced and dedicated core members to offer you professional and reliable before-sales and after-sales service.
3. We have purveyed customers with the lowest wholesale price.
Q2: How do you guarantee the quality?
A: One year's guarantee from date on B/L. Normally. If it's quality problem, we promise to return goods or funds.
Q3: Is OEM available?
A: Yes, all goods can be custom made by your requirements, including packing, LOGO print, etc.
Q4: Can we buy 1 pc for sample testing?
A: Yes, we are glad to send 1pc for quality testing if we have stock of the model you required.
Q5: How to deliver the goods for trial order or small order?
A : For small order, we prefer to choose international express, such as DHL, TNT, EMS which are faster and more convenient for customer. Also, we cooperate with an express agent that can give us a big discount for express fee which is much lower than that quoted by official. For the goods with detachable battery, the express fee can be lower down if the goods is sent out without battery.
Q6: What kind of payment your company accept?
A : T/T , WEST UNION , PAYPAL , ETC.
Q7: If we have not found the model from website, what should we do?
A: Please email us with description and picture of the product, we research and develop new model every month, and some of them maybe have not been uploaded in website immediately. But If this is a new products for us, we can develop it for you after get all detailed information about your product.
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