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i-OXTRA 7600 Oxygen Transmission Rate tester-Contact Lens Test

i-OXTRA 7600 Oxygen Transmission Rate tester-Contact Lens Test

i-OXTRA 7600 Oxygen Transmission Rate tester-Contact Lens Test

Product catalog summary
Scope
The i-OXTRA 7600 Oxygen Transmission Rate Tester is designed to measure the oxygen transmission rate of various films, including plastic films, plastic composite films, paper-plastic composite films, coextruded films, aluminized films, aluminum foil, and aluminum composite films.
Test Procedures
  1. Installation: Install the package flange using 2 socket head screws and tighten with an Allen wrench. Ensure alignment of the flange holes with the lower test chamber and secure the O-ring tightly.
  2. Specimen Mounting: Mount the test specimen as shown in the provided figures.
  3. Parameter Setup and Zero Purging: Set test parameters and perform zero purging. Ensure Valves 1, 2, and 6 are closed.
  4. Flow Observation: During testing, observe the flow in the upper and lower test chambers using the rotameter and test interface. Adjust Valve 4 and 5 to maintain a flow rate of 20 ml/min in the upper chamber and Valve 3 for 10 ml/min in the lower chamber.
  5. Oxygen Connection: After confirming the zero point, close Valves 5 and 4, then open Valve 6 to connect oxygen to the upper chamber. Maintain flow rates as previously set.
  6. Test Completion: Close Valve 6 to stop oxygen flow. Purge chambers with high-purity nitrogen until oxygen concentration is below 10ppm. Close Valves 2 and 1 sequentially. View test results and reports. Repeat procedures if necessary.
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Catalog excerpts

i-OXTRA 7600 Oxygen Transmission Rate tester-Contact Lens Test-1

i-OXTRA 7600 Oxygen Transmission Rate Tester---Contact Lens Test Scope i-OXTRA 7600 Oxygen Transmission Rate Tester is designed to measure the oxygen transmission rate of various films including plastic films, plastic composite films, paper-plastic composite films, coextruded films, aluminized films, aluminum foil, aluminum composite films, and many others. Test Procedures A: Install the package flange and fix it with 2 socket head screws and then tighten it with Allen wrench. Make sure the 2 holes in the flange and those of the lower test chamber are well aligned and the O-ring should be fixed tightly. B: Mount the test specimen in the order shown in the figures below.

 Open the catalog to page 1
i-OXTRA 7600 Oxygen Transmission Rate tester-Contact Lens Test-2

200 River's Edge Drive, Medford, MA 02155

 Open the catalog to page 2
i-OXTRA 7600 Oxygen Transmission Rate tester-Contact Lens Test-3

C: Set up test parameters and perform zero purging. Make sure Valve 1 and 2 on the left side and Valve 6 on the right side of the instrument are all closed. D: In process of testing, observe the flow of upper test chamber and lower test chamber through the rotameter and test interface respectively. The flow rate should be controlled around 20 ml/min in the upper test chamber by adjusting Valve 4 and 5. The flow rate should be controlled around 10ml/min in the lower test chamber by adjusting Valve 3.

 Open the catalog to page 3
i-OXTRA 7600 Oxygen Transmission Rate tester-Contact Lens Test-4

E: After the zero point is confirmed, close Valve 5 and Valve 4 one by one. Then open Valve 6 so the oxygen could be connected to upper test chamber. Observe the rotameter and keep the flow rate in the upper test chamber at 20 ml/min and in the lower chamber at 10 ml/min. Test curves would be displayed as shown in the figure below. F: When the tests are finished, close Valve 6 to stop oxygen flow. Continue to purge the upper and lower test chambers with high purified nitrogen until the concentration of oxygen is reduced below 10ppm. Then close Valve 2 and Valve 1 in order. View the test results...

 Open the catalog to page 4

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.