General description
A unit of Reference Material (RM) 8631b, an ISO Medium Test Dust (MTD), consists of 20 g of a natural mineral dust that is heterogeneous in composition and polydisperse with respect to size. RM 8631b is intended to be used as a secondary material for calibrating particle sizing instruments, especially optical particle counters, when used in conjunction with published standard methods.RM 8631B_cert RM 8631B_SDS
Legal Information
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