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This is the complete data set for the 2021/22 children's car seat study.
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The written report and description of methods are found at healthystuff.org.
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Element values obtained by X-ray fluorescence spectroscopy (XRF) have units of parts per million.
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The Optimization column refers to options in the instrument controls that improve accuracy of measurement for certain elements.
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Cl_P optimization improves accuracy of chlorine and phosphorus. However, it causes antimony to not be measured.
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Each car seat and stroller had at least one fabric sample tested using Default optimization in addition to Cl_P in order to measure antimony.
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Column "% uncert (P)" is the software-reported uncertainty (absolute value) divided by the measured value, expressed as %.
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Column "P (ND if >30% uncert)" repeats the measured P values with a criterion applied in order to minimize the possibility of false positives. Values with uncertainty greater than 30% are marked as not detected.
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Definitions:
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PMMMPs
5-ethyl-2-methyl-2-oxido-1,3,2-dioxaphosphinan-5-yl)methyl methyl methylphosphonate and bis[(5-ethyl-2-methyl-1,3,2-dioxaphosphorinan-5-yl)methyl] methyl phosphonate p,p'-dioxide)
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melamine
2,4,6-Triamino-1,3,5-triazine
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PU
polyurethanes, a group of polymers
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PET
polyethylene terephthalate, the most common polymer used for polyester textiles.
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PDMS
polydimethylsiloxane, also known as silicone polymer.
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PVC
polyvinyl chloride
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TBBPA
tetrabromobisphenol A
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DOTP
dioctyl terephthalate
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