ISO 9913 Standard Oxygen Permeability Testing for Contact Lenses

Product Description

Product Features

New Generation Integrated Testing Block
The patented three-cell integrated test block structure using advanced thermodynamics and hydrodynamics analysis greatly improves the temperature, humidity and flow measurement accuracy across the three test cells and supports simultaneous testing of three samples.

Automatic Control of Temperature, Humidity and Flow Rate
The internal temperature and humidity of the instrument are automatically adjusted with temperature and humidity sensors, maintaining the stability of the test specimen environment.
Automatic flow rate control ensures the constant flow during the testing process and minimizes any errors caused by an unstable flow rate.

Easy-to-use and High-efficiency System
The automatic test mode, combined with the instrument features, eliminates the need for manual adjustments to quickly obtain accurate results, saving training costs and releasing staff from manual monitoring so that they are available for other tasks.
The professional test mode provides flexible and rich instrument control functions to meet individual scientific research needs.
Unique, optional DataShieldTM system, meets the requirements for centralized management of user data. It supports a variety of formats of exported data. Reliable security algorithms are used to prevent data leakage. It supports universal wired and wireless LAN, optional private wireless network and third-party software.

User-oriented Service Concept
Adhering to our user-oriented service concept, Labthink has created a customization system that provides flexible and comprehensive customization services for the accommodation of non-standard specimens and packages.

Note 1: The parameters in the table are measured by professional operator in Labthink laboratory according to relative requirements for laboratory standard conditions.
Note 2: DataShieldTM provides safe and reliable data application support. Multiple Labthink instruments can share one single DataShieldTM system which can be purchase as required.
Note 3: The described product features should be in line with Table 1: Test Parameters.

Test Principle

The pre-conditioned specimen is mounted between the upper and lower chambers at ambient atmospheric pressure. The upper chamber contains oxygen or air and the lower chamber is slowly purged by a stream of nitrogen. Due to the concentration difference between the two chambers, oxygen molecules permeate through the specimen into the nitrogen side and are taken to the coulometric sensor where proportional electrical signals are generated. The oxygen transmission rate is then obtained by analyzing the signals and calculating the volume of oxygen measured by the sensor. For whole package samples, high purity nitrogen flows inside the package, and oxygen or air flows outside.

Test Standards

ASTM D3985, ASTM F1307, ASTM F1927 (option), GB/T 19789, GB/T 31354, DIN 53380-3, JIS K7126-2-B and YBB 00082003-2015

Applications

Basic Applications
Films Plastic films, paper-plastic composite films, coextruded films, aluminized films, aluminum foils, aluminum foil composite films, glass fiber aluminum foil composite films and many others
Sheeting PP, PVC and PVDC sheets, metal foils, rubber pads, silicon wafers and other sheeting materials
Packages Plastic, rubber, paper, paper-plastic composite, glass and metal packages, e.g. Coke bottles, peanut oil packages, Tetra Pak materials, vacuum bags, metal three-piece cans, plastic packages for cosmetic, soft tubes for toothpaste, jelly and yogurt cups
Extended Applications
Closure Systems Oxygen barrier property of various closure systems for bottles cartons and pouches.
Solar Back-Sheets Oxygen permeability test of solar back-sheets
Plastic Tubes Oxygen permeability test of various sorts of tubes, e.g cosmetic tubes.
Blister Packs Test oxygen transmission rate of the whole blister packs
Automotive and Small Engine Fuel Tanks Permeability of plastic fuel tanks.
Battery Plastic Shell Oxygen transmission rate of battery plastic shell

Technical Specifications

Table 1: Test Parameters Note1

Parameter		Model C230H
Test Range	cm3/(m2d) (Standard)	0.01 200
	cc/(100in2day)	0.0007 12.9
	cm3/(pkgd)(Package)	0.00005 1
Resolution	cm3/(m2day)	0.001
Repeatability	cm3/(m2day)	0.01 or 2%
Test Temperature	C	10 55 0.2
Test Humidity	RH	O2: 0%, 5% 901%, 100% Carrier Gas: 0%, 5% 902%(optional)
Additional Functions	Package Test (3L Max.)	Optional
	DataShieldTM Note2	Optional
	Computer System required by GMP	Optional
	CFR21 Part11	Optional

Table 2: Technical Specifications

Test Chamber	3 test chambers
Specimen Size	108 mm X 108 mm
Specimen Thickness	3 mm
Standard Test Area	50 cm2
Carrier Gas	99.999% High-purity Nitrogen (outside of supply scope)
Carrier Gas Pressure	0.28 MPa/40.6psi
Port Size	1/8 inch metal tubing

Precision Oxygen Permeability Analysis

Designed to meet ISO 9913 requirements, this equipment provides dependable measurement of the oxygen transmission rate for both soft and hard contact lenses. Its advanced electrochemical sensor, automated calibration, and programmable test parameters optimize reliability and accuracy, making it an essential asset in research and manufacturing environments.


Enhanced Laboratory Efficiency

Multi-position lens holders, fast response time, and data logging capabilities improve throughput and consistency in quality control labs. The intuitive LCD interface and semi-automatic operation facilitate hassle-free workflow, while online and onsite technical support ensures continued performance.


Robust and Secure Design

Engineered from corrosion-resistant stainless steel, this bench-top tester is IP30 rated for protection. Integrated audible and visual alarms safeguard processes, with environmental controls for humidity and temperature settings to guarantee compliant and repeatable results.