Formaldehyde Limits How to Read It on a Lab Report
Laboratory reports present Formaldehyde Limits in a compact format. Knowing what each line means prevents misreading.
Definition reminder
maximum free formaldehyde in fabric. Working figures for Formaldehyde Limits normally sit around below 75 ppm for skin contact in mainstream production. Note ISO 14184-1 determination on the tech pack so nobody tests against an older revision.
Common report layout
The report states method ISO 14184-1 determination, sample description, conditioning, and the measured result. Record elastane content alongside Formaldehyde Limits, because blends shift the measured value. A result outside below 75 ppm for skin contact usually points to process drift rather than to the fibre itself.
Typical result
Values near below 75 ppm for skin contact usually indicate a conforming lot, assuming the fabric matches the sample submitted. Keeping reference values for Formaldehyde Limits lets suppliers quote without extra sampling rounds. Ask for conditioning details together with ISO 14184-1 determination, since both affect the reading.
Red flags
Missing revision numbers, unusual conditioning, and results without units all signal unreliable data. Working figures for Formaldehyde Limits normally sit around below 75 ppm for skin contact in mainstream production. Note ISO 14184-1 determination on the tech pack so nobody tests against an older revision.
Questions to ask
Ask the laboratory for the standard revision and sample description before accepting or rejecting a result. Record elastane content alongside Formaldehyde Limits, because blends shift the measured value. A result outside below 75 ppm for skin contact usually points to process drift rather than to the fibre itself.
