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AN-NIR-102 Density of polyolefins measured by nearinfrared spectroscopy Simple routine analysis of polymer pellets Summary Aside from melt flow rate, density is the most important parameter to describe the properties of polyethylene (PE) materials. PE stiffness, rigidity, and heat resistance…
Key words
metrohm, metrohmdensity, densitynirs, nirserror, errormerit, meritbubbles, bubblesnir, nirfigures, figuresair, airbalance, balanceresult, resultyes, yesspectroscopy, spectroscopyday, daynearinfrared
Quality Control of Polyethylene
2020|Metrohm|Applications
AN-NIR-081 Quality Control of Polyethylene Reliable determination of PE density within one minute using NIRS Summary Determination of the density of polyethylene (PE) (ASTM D792) is normally a challenging procedure due to reproducibility difficulties. Since this parameter is most frequently…
Key words
metrohm, metrohmsimple, simplenir, nirdensity, densityday, dayerror, errorgranulates, granulatesmanagement, managementsql, sqlreliable, reliableequipment, equipmentspectral, spectralmerit, meritvision, visionnirs
Quality Control of PET
2020|Metrohm|Applications
AN-NIR-023 Quality Control of PET Determination of diethylene glycol, isophthalic acid, intrinsic viscosity, and acid number within one minute with NIRS Summary Determination of the diethylene glycol content, isophthalic acid content, intrinsic viscosity (ASTM D4603), and the acid number (AN)…
Key words
metrohm, metrohmerror, errormerit, meritfigures, figuresisophthalic, isophthalicdissolve, dissolvecross, crossstandard, standardresult, resultviscometry, viscometryvalidation, validationdiethylene, diethylenevalue, valuesimple, simpleintrinsic
Quality Control of Polyamides
2020|Metrohm|Applications
AN-NIR-060 Quality Control of Polyamides Determination of viscosity, functional groups, and moisture within one minute using NIR Spectroscopy Summary Functional group and viscosity analysis (ASTM D789) of polyamides can be a lengthy and challenging process due to the sample’s limited…
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metrohm, metrohmerror, errormerit, meritfigures, figurestitration, titrationcross, crossstandard, standardresult, resultvalidation, validationend, endgroup, groupcarboxyl, carboxylsimple, simplevalue, valuenir
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