1、IManufacturing Standards MR The material defined by this SkMmd is a finely ground uxide of iron, of good qualit;y aml uniform cornpositionS 2. APPLlCATIOB This material is used in cure mnd mixes for retarding core mllapsability and for reducing undesirable sand expansion effects. Grading on Metric S
2、reveso (Wet. sieve analysis) B.S. 4.10 1976. Retatied on 212 um mesh - Nil Retained on I50 urn mesh - 8,0$* max Retained on 106 urn mesh - 5w% =x 3.2 Fusion Temperature * 12uo”c mi.n 3-4 Quality and Foreign Materials See Manufacturing Standa.rd UMBX “Clauses Standard, for use in Planufacturing Suppl
3、ement to H13* Thb material is potentially harmful as dusbwben inhaled and as a skLn irritant., Precautions must be taken to p&vent dust formation, Plant Health and SafetyJlpartments must be advised of its presence in Plant to inspect the area and manner of use with special regard to the dust bzarda Page Z End
