Brief introduction: This product is imported from the United Kingdom James H.heal, also known as phenol yellow control cloth and yellowing control cloth. This accessory product is mainly used with yellowing test paper to test the phenol yellowness of white or batik yarns, cloths and garments during transportation or storage. Application Scope This test is mainly for phenol yellow caused by phenol. The reaction of nitrogen oxide and phenol yellow phenol on the textile causes the textile to turn yellow. It cannot directly detect fading caused by other causes. Such as: fading of brighteners, oxidation of lubricants on fabrics, etc. However, the phenol yellow test component has proven to be effective in controlling the quality of white and batik products, significantly reducing customer complaints caused by phenol yellow. Techincal specifications: Product specifications: 100x30mm/piece, 25 pieces/pack It is valid for use within three months after opening the package. Place of production: United Kingdom Standard for: EN ISO 105-X18:2007, M&SC20B
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