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-01 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-01 leak tester is the manual model developed. It’s an economic, strong and long durable model.
☛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.
☛Strong and clear chamber provided, same type as equipped
to our automatic models; Different sizes and shapes could be
customized
☛It could be modified to work with vacuum pump, to
achieve higher vacuum (for ASTM D4991)
☛No calibration needed
☛No electricity needed
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)
Electricity Not Needed
Test Description
A sample is placed into the chamber filled with water. Then the chamber is covered
with a lid and they are well sealed. Manually open the gas switch so compressed
air flows through the venturi tube to provide a vacuum inlet, which is connected to
chamber. A gas regulator can adjust the vacuum degree so sample is in a vacuum environment.
The pressure difference between inside and outside of sample will cause the headspace gas to
escape if there is a leak. The leak is shown by a stream of bubbles coming out from the leak area.