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See Chinese contents: GB/T 41065-2021 GB/T 41065-2021: Basalt fiber -- Determination of combustible matter content
This document specifies the principles, instruments and materials, samples, operations, results presentation, precision, and test report for the determination of combustible matter content in basalt fibers. This document describes two test methods for determining the combustible matter content of basalt fibers, namely: --- Method A: Muffle furnace burning method; --- Method B: Soxhlet extraction method. Method A is the arbitration test method. This document applies to basalt fiber yarns, chopped strands and milled fibers, fabrics, felts, and other products.
