LABC-Labortechnik has developed various products for permeation measurement in laboratories since 1988. Our range includes products for measurements in the collection medium water as well as in the gas flow. As detectors we offer FPD, FID, PID electrodes, as well as pH electrodes, conductivity electrodes and redox electrodes.

Measuring devices in the gas flow

Our Qumat and Permobil workstation measure in the gas flow with a detector. This means that the collection medium is a gas. Here you have the option of using air or nitrogen as the collection medium. The measurements in the gas flow are carried out in an open loop system.

Workplaces with water as a collection medium

The NW50liquid workstation and the NW50 liqui permeation cells are operated with water as the collection medium. The collection medium is a deionised water. The permeation measurements take place in a closed loop system.

Qumat®-Q401-H

Features Qumat401 HR FID undFID/FPD

Permeation cell NW50

Designed for liquid or gaseous test chemicals and gaseous collection media. Permeation cell NW50 according to EN 16523-1 (replaces EN374-3) for testing PPE films such as protective gloves or protective clothing to measure the permeability of the test substances for the samples.

The permeation cell parts are held upright by a tripod without support. The PTFE holder for gloves < 0.5 mm is placed in between. Made by German glassblowers according to the standards.

Der Beitrag Qumat®-Q401 HR EPC erschien zuerst auf LABC-Labortechnik.

• Resistance to chemicals is regulated in standard 1186, 16523, 6529 and F-739
• LABC-Permeation celles are manufactured according standard 1186, 16523, 6529 and F-739
• For testing with 23°C+-1 according the standards. Tests upto 35°C are possible
• In a world wide use
• Developed and produced under quality controlled conditions in Germany
• The permeation testers requiered for each permeation chemical are listed in normative Annexes

Over the past 30 years, LABC-Labortechnik has developed various products for measuring permeation in laboratories. Our range includes products for measurements in the collecting fluid water as well as in the collecting inert gas. As detectors, we offer FDP, FID, PID electrodes, as well as pH electrodes, conductivity electrodes and redox electrodes.

Inert gas testers

Our Qumat and our Permobil working stations are testing with inert gas. This means that the collection medium is a gas. There you have to option to use air or nitrogen. The inert gas testers are measuring in a open loop system.

Fluit water

The NW50liquid working station and the NW50 liqui cells are operation with fluit water. The collection medium is a deionized water. The fluit water testing systems are measuring in a closed loop system.

Qumat®-Q401-H

Features Qumat401 HR FID and FID/FPD

Permeatin cell NW50

Designed for liquid or gaseous test chemicals and gaseous collection media. Permeation cell NW50 in accordance to EN 16523-1 (replaces EN374-3) for testing PPE films such as safety gloves or safety clothing in order to measure the permeability of the test substances to the samples.

Device made of glass and standing without support on three feet and a PTFE holder for films < 0.5 mm.
Manufactured by German glassblowers.

Der Beitrag Qumat®-Q401 erschien zuerst auf LABC-Labortechnik.

Advantages of the Sieg-Mi-Flex

• Sieg-Mi-Flex is available in the materials: Stainless steel (VA 1.4571), borosilicate glass and PFA-coated stainless steel.
• They can be combined with each other.
• with individual serial numbers and a factory certificate for individual proof of dimensional accuracy
• All center rings and all reduction plates of the Sieg-Mi-Flex system fit into the fixation plate set of the migration cell system Sieg-Mi-Flex with the size 140 x 140 mm (EN1186-1:2002) for the examination of different sized sample areas at defined surface/volume ratios.

• Temperature resistant -15 °C to 180 °C, pressure-tight up to 9 bar (depending on material)

• Is the most sold migration chamber
• Rapid adaptation to special specimen sizes can also be achieved with the so-called reduction plates made of stainless steel (VA 1.4571) in conjunction with the center rings.
• The Sieg-Mi-Flex can also be equipped with 2 packaging patterns (top/bottom).
• The migration cell is then stored upright instead of lying horizontally.
• The barrier effect of packaging materials can also be tested, e.g. with the “sandwich arrangement” test setup.
• Sieg-Mi-Flex are issued individually with a batch number, so a works certificate can be issued for each center ring and fixing plate.

With the help of the Sieg-Mi-Flex migration cells, a migration assessment of packaging ingredients from food repackaging can already take place on the finished roll goods.
Tests have shown that temperature equilibration by diffusion is sufficient when the migration cell filled with a simulant remains upright for 24 h.
There is no need to turn around. The migration cell is easy to close or open with stainless steel knurled screws. Their compact, space-saving design can be stored horizontally or vertically for temperature control in drying ovens or bath/circulating circulators.

In the Sieg-Mi-Flex migration cell system, many sizes and thicknesses of packaging in a wide variety of material compositions can be tested with all liquid and solid food simulants.
For studies with solid food simulants (E) poly-2,6-diphenyl-p-phenylene oxide (MPPO), the Tenax kit is used. Some customers also use the Tenax kit for migration testing with oil, as the fixing plate with the GL45 spout is easier to clean in the dishwasher than the center rings with the GL14 pour-in and GL14 pour-out spouts.
The Sieg-Mi-Flex MIgration cell is then subjected to the test conditions with one test piece lying horizontally at a time. Due to the high temperature resistance (-20 °C to 180 °C) and the high pressure tightness up to 9 bar, stainless steel migration cells System-Siegwerk (Sieg-Mi-Flex) can also be used for liquid food simulants under test conditions beyond their boiling point.

Application examples

Migration cells of the Sieg-Mi-Flex type are basically suitable for migration tests, among others according to EN1186. Migration tests can be performed with cloths, papers, foil or cardboard packaging, gloves and many other materials or surfaces.

More information

Cleaning migration cells

The Sieg-Mi-Flex cells are completely disassembled for cleaning and left for approx. 15 min. sonicated with isopropanol at room temperature in an ultrasonic bath, then dried. Then rinsed with ethanol pure LC-MS quality and dried again.

The individual parts of the Sieg-Mi-Flex migration cell are dishwasher safe

Food categories and simulants in Regulation 10/2011 (PIM)

Due to the flexibility and modular design of the System-Siegwerk (Sieg-Mi-Flex) migration cell system, many sizes and thicknesses of packaging of different material compositions can be used for migration testing with all liquid and solid food simulants, food simulants for substitute testing (isooctane, ethanol 95 vol.%) or solvents from pharmaceutical formulations even beyond their boiling point on a defined sample area and with subsequent storage depending on time and temperature. The migration cell system Siegwerk (Sieg-Mi-Flex) following EN 1186-1:2002 (D), Annex C (informative), Figure C.4-Cell Type B and Figure C.5-Cell Type C, was developed and tested in cooperation with the analytical department of Siegwerk Druckfarben AG & Co. KGaA.

An overview of all versions of our Sieg-Mi-Flex migration cell and matching accessories:

Der Beitrag Sieg-Mi-Flex Migration Cell System erschien zuerst auf LABC-Labortechnik.