The HBsAg Rapid Test Device (Serum/Plasma) has been designed to detect the HBsAg through visual interpretation of color development in the strip. The membrane was immobilized with anti‐ HBsAg antibodies on the test region. During the test, the specimen is allowed to react with colored anti‐HBsAg antibodies colloidal gold conjugates, which were precoated on the sample pad of the test. The mixture then moves on the membrane by a capillary action, and interact with reagents on the membrane. If there were enough HBsAg in specimens, a colored band will from at the test region of the membrane. Presence of this colored band indicates a positive result, while its

absence indicates a negative result. Appearance of a colored band at the control region serves as a procedural control. This indicates that proper volume of specimen has been added and membrane wicking has occurred.

• HBsAg Rapid Test Strip
  Bring tests, specimens and/or controls to room temperature (15‐30°C) before use. 
  1. Transfer 3 drop of specimen to a specimen reaction tube with a disposable pipette provided in the kit.
  2. Remove the test from its sealed pouch and use it as soon as possible. To obtain a best result, the assay should be performed within one hour. 
  3. Hold the strip at the handle with the product name imprints. Do not touch the membrane part of the strip to avoid contamination. 
  4. Dip the test strip vertically in the specimen for at least 10‐15 seconds. Do not pass the maximum line (MAX) on the test strip when immersing the strip. 
  As the test begins to work, you will see color move across the membrane. 
  5. Take the strip out of the specimen afterwards and place it on a non‐absorbents flat surface. 
  Start the timer and wait for the colored line(s) to appear. The result should be read at 10 minutes. Do not interpret the result after 20 minutes.
  HBsAg Rapid Test Device
  Bring tests, specimens and/or controls to room temperature (15‐30°C) before use. 
  1. Remove the test from its sealed pouch, and place it on a clean, level surface. Label the test with patient or control identification. To obtain a best result, the assay should be performed 
  within one hour
  Transfer 2 drops of serum/plasma to the specimen well of the device with a disposable pipette provided in the kit, then add 1 drop of buffer and start the timer. 
  Avoid trapping air bubbles in the specimen well (S), and do not drop any solution in observation window. 
  As the test begins to work, you will see color move across the membrane. 
  2. Wait for the colored band(s) to appear. The result should be read at 15 minutes. Do not interpret the result after 20 minutes.