Pyrolysis mass spectrometry isolates covalently bound alkyl ketene dimer esters from free waxes in paperboard, verifying food contact safety and mill sizing cure.
Paperboard food contact compliance requires verified migration testing using specific simulants and GC-MS or LC-GC-FID analytics to enforce migration safety limits.
Chromatographic testing via LC-MS/MS verifies photoinitiator specific migration limits in printed barrier packaging to maintain compliance.
Predicting set-off migration requires calculating local pressure peaks across board caliper variations to set safe pile heights and barrier coat weights.
Auditing food contact board certificates requires verifying laboratory test simulants, thermal parameters, and surface ratios against real package converting limits.
Verify paperboard wet end additive retention using dynamic drainage jars and extraction GC-MS to ensure food contact compliance and prevent converting failures.
Matching migration simulant and thermal parameters to exact filling line mechanics prevents compliance invalidation during customs and market audit checks.
A converter's chain of custody certificate cannot retroactively grant certified status to packaging made from uncertified paper mill substrate.
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