Negative: Only control pink band appears on test region of the cassette. This indicates that there is no determinand in the specimen.
Positive: Two pink bands(C,T) appear on test region of the cassette. This indicates that the specimen contains detectable amount of determinand.
Invalid: If without colored band appears at control region, this is an indication of a possible error in performing the test. The test should be repeated using a new one.

Q: Why choose US? Any advantages? 
A: The answer is Yes. There are 4 advantages. 
(1) MUTUAL BENEFIT: Our offer will be reasonable, our price will be cheaper in the same quality. 
(2) CUSTOMIZE: We can make the product as your request, Shape and Quality can meet your request. 
(3) OEM: (1)Laser Print your Logo (≥1000boxes). (2)Design your packing box(≥1000boxes). 
(4) MIX ORDER: We accept mix order, different model and small quantity order. 
Q: Can I order some pieces for sample to test the quality? 
A: Yes, We recommend to check the sample before order. Samples will be free. you just have to pay shipping fee.
Q: May I have your catalogue and price list for trial order in MOQ quantity? 
A: All our products were shown on alibaba, please have a detailed looking and choose the interested models in our site. 
Q: If I order big quantity, what's the good price? 
A: Please send the details enquiry to us, such as the Item Number, Quantity for each item, Quality request, Logo, Payment Terms, Transport method, Discharge place etc. We will make the accurate quotation to you as soon as possible. 
Q: Do you want to choose what payment?
A: We can accept 10% or 30% of the deposit, we will begin to arrange the production for you. We accept paypal, Western Union, T/T, Alibaba credit guarantee orders, letter of credit, we welcome you to visit our factory.Thank you 
Q:What if you can't contact us in time?
A:You can use WhatsApp, Skype, LINE or e-mail contact us, our salesman will timely reply to you.Thank you