Material Analysis
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POM Formaldehyde Odor Management
Problembeschreibung
Workshop formaldehyde odor exceeds the limit, operators' eyes sting, and environmental testing fails
Ursachenanalyse
POM decomposes at high temperature releasing formaldehyde gas (IARC Group 1 carcinogen), OSHA exposure limit 0.75ppm; the closer processing gets to 220-240℃, the more violent the release; stagnant material and shear heat are also release sources
Lösung
①Strictly control processing temperature below 210℃; ②shorten residence time and keep the barrel clean; ③install local exhaust ventilation and regularly test workshop concentration; after adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability
Wichtigste Erkenntnis
Formaldehyde release is the occupational health red line of POM processing; temperature discipline plus ventilation testing is both a quality requirement and a regulatory requirement; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence
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