SDCE Sewing Threads Product Codes:4180: Polyester Core Spun 45 +/-5 Tex 5000m cone4181: Polyester/Cotton Core Spun 60Tex 5000m cone4182: Polyester Core Spun 74 +/-5 Tex 5000m coneTesting Categories: Colour Fastness, Dimensional Stability, Physical Enquiry Suitable for use in the preparation of test samples. BS EN ISO 13936, M&S P12, AS2001 2.21