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Examinationmethods



SML (specific migration limit) analysis of individual substances for compliance evaluation
Quantitative analysis of substances with limits (SML, SML(T), QM, QMA etc.) or non-evaluated substances by gas chromatography (e.g. HS-GC, GC/MS), liquid chromatography (e.g. HPLC/MS), mass spectrometry with inductively coupled plasma (ICP-MS) in food simulants or foodstuffs after migration or (residual) content determination in the material or article





overall migration acc. Reg. (EU) No 10/2011 standardized testing conditions (OM1- OM7)
Regulation (EU) No. 10/ 2011 (PIM)/ DIN EN 1186 classical food simulants (not alternative tests like Isooctane testing): A= Ethanol 10 % (v/v), B= Acetic acid 3 % (w/v), C= Ethanol 20 % (v/v), D1= Ethanol 50 % (v/v), D 2= Vegetable oil, E= poly(2,6-diphenyl-p-phenylene oxide) (Tenax ®)





Damage analysis/ analysis of complaints
In many cases, it is not immediately obvious which kind of tests are necessary and reasonable for the clarification. Furthermore, test results which are available in short time are often helpful for further decisions. Our “diagnostic concept” provides the agreement of a limited budget (normally 700,- up to 1.000,- Euro) for the screening and evaluation of information already available as well as the realization and assessment of first tests according to an agreed schedule. The result is a more detailed view of the damage, possible solutions and indications for additional and reasonable investigations and researches are given. You will receive first reliable test results and an appropriate documentation of the current situation at short notice and at a fixed price. Information on the frequency of the anomalies ,point in time of recognition, technical information such as material structure, yet present test results are known to be helpful for successfully examination. If available, please send us reference samples, data sheets, specifications.





bond strength/ peel force of laminates/ multilayer films/ bondings (temperature range -40 to +120 °C)
DIN 53357 A (historical)/ ASTM F 904/ DIN EN ISO 11339 peel test after separation of the laminated layers (accredited test method)





Infrared (IR)-spectroscopy
Identification of materials, contaminations, additives, laquers, adhesives etc. with different techniques depending on sample and problem





determination of opacity
The measurements are carried out using a spectrophotometer. In difference to the test methods for paper, such as ISO 2471 or DIN 53146, the method for plastic films uses a white underlay instead of a number of layers of material stacked to complete opacity to determine R∞ and a black underlay instead of a completely black hollow body to determine Ro. An opacity chart (Leneta) type 2 a serves as a black and white base.





Oxygen transmission rate (OTR) of plastic films, laminates, coated papers, Alufoils, etc.
ISO 15105-2, ASTM D3985, ASTM F1927, DIN 53380-3;coulombmetric method (Mocon)



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