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See Chinese contents: GB/T 41063-2021 GB/T 41063-2021: Textile glass -- Determination of density
This document specifies the humidity conditioning and test environment, test method and test report for determination of glass fiber density. This document describes three test methods for determining the density of glass fibers, namely: - Method A: Gas pycnometer method; - Method B: Liquid pycnometer method; - Method C: Buoyancy method. Method A is the arbitration test method. This document applies to the determination of glass fiber density.
