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GB/T 40909-2021 English PDF (GBT40909-2021)

GB/T 40909-2021 English PDF (GBT40909-2021)

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GB/T 40909-2021: Textiles -- Determination of methylcyclosiloxane residues
This document describes the test methods for the determination of octamethylcyclotetrasiloxane (D4), decamethylcyclopentasiloxane (D5) and dodecamethylcyclohexasiloxane (D6) residues in textiles by gas chromatograph-mass spectrometer (GC-MS). This document applies to all types of textiles.

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