DIN 16746 (1986-04)被替代
Plastics, Paints And Varnishes - Thermosetting Resins - Determination Of Free Formaldehyde In Condensation Resins
出版：German Institute for Standardisation (Deutsches Institut für Normung)
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基本信息
标准编号： DIN 16746 (1986-04)
发布时间：1986/4/1 0:00:00
标准类别：Standard
出版单位：German Institute for Standardisation (Deutsches Institut für Normung)
标准页数：0
标准简介
Methods used for determining percentage by mass of free formaldehyde present in condensation resins that are not yet fully cured. For purposes of the standard, free formaldehyde is that which is present in condensation resins in uncombined form as formaldehyde, formaldehyde hydrate (dihydroxymethylene) or polyoxymethylene. Resins include urea, furan, melamine and phenolic resins, as well as combinations and modifications. Since no method exists that is universally applicable to all resins, several methods are necessary.
