Testing the integrity of package seals helps ensure that the packaging provides required product protection. Sustainable packaging alternatives, lower cost packaging, and variations in production line sealing parameters are frequently assessed with seal integrity tests. Maintaining the reliability of package seals is critical for product quality and safety.

1. LT-02 Leak Tester
Application
Testing the integrity of package seals helps ensure that the packaging provides required
product protection. Sustainable packaging alternatives, lower cost packaging, and variations
in production line sealing parameters are frequently assessed with seal integrity tests.
Maintaining the reliability of package seals is critical for product quality and safety.
Available Chambers
Cylinder shape of required height and
φ270mm, φ364mm, φ464mm, etc.
Cuboid shape with different LWH.
Technical Features
LT-02 leak tester is the first-generation automatic vacuum
tester introduced by Cell Instruments. The ASTM D3078 is the
standard test method for determination of gross leaks in
flexible packaging containing a headspace gas by bubble
emission. The test is conducted by submerging the test
specimen in the immersion fluid within the confines of a
vacuum chamber.
☛To achieve stable vacuum and considering the fact that
compressed air is easier to be obtained at user facility, we use Venturi tube for a high level of
vacuum up to –90KPa.
☛Precious and long test time setting.
☛SMC branded vacuum pressure switch.
☛Strong and clear chamber provided, and different sizes and shapes could be customized
☛It could be modified to work with vacuum pump, to achieve higher vacuum (for ASTM D4991)
Feel free to contact us
yang@celtec.cn
www.celtec.cn
Whatsapp/wechat:+86 18560013985
Various ways of leak test
Standards Method Used For
ASTM D3078 Bubble emission MAP,pack with air, liquid filled
ASTM D4991 Bubble Emission Empty Rigid Containers
ASTM F2096 Internal Pressurization Gross Leaks
ASTM F2338 Vacuum decay Flexible pack, rigid containers
ASTM F2054
ASTM F1140
Pressure decay Flexible, rigid, tube, etc
Our Solution
LT-01, LT-02, LT-03
LT-01, LT-02, LT-03 modified
GLT-01
MLT-01
LSST-01
Main Parameters
Test Range 0~-90 KPa
Chamber Acrylic cylinder shape
Test Space Φ270*H210mm (internal usable)
Compressed Air 0.7MPa (Prepared by user)
Power 220V 50/60Hz
Test Description
A sample is placed into the chamber filled with water. After the lid is put back.
the control unit start to extract the air inside chamber out, until the preset vacuum
is achieved. Because of the pressure difference between inside and outside of sample, air in it will
escape if there is a small leak. The leak is shown by a stream of bubbles from the leak area.