GB/T 46904-2026 Active National standards

GB/T 46904-2026 Polycarbosilanes

Publish Date: 2026-01-28 Implement Date: 2026-08-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: GB/T 46904-2026

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Non-metallic materials for aviation and aerospace applications

ICS Name: Other materials

Publish Date: 2026-01-28

Implement Date: 2026-08-01

Pages: 28 pages

Scope

This document specifies the classification, requirements, inspection rules, marking, labeling, and accompanying documents of polycarbonosilane, as well as its packaging, transportation, and storage. It also describes the corresponding testing methods.
This document is applicable to the inspection and acceptance of polycarbonosilane used in the preparation of silicon carbide-based composites, silicon carbide fibers, and silicon nitride fibers. It can also be used as a reference for the preparation of coatings, adhesives, and other products made from polycarbonosilane.

Development Information

Word Count: 41 Thousand words Pages: 28 pages

Referenced Standards

GB/T 191-2000 Packaging—Pictorial marking for handling of goods GB/T 191-2008 Packaging—Pictorial marking for handling of goods GB/T 191-2025 Graphical symbols marking for handling and storage of packages GB/T 2794-2022 Determination for viscosity of adhesives GB/T 3864-1996 Industrial nitrogen GB/T 3864-2008 Industrial nitrogen GB/T 3864-2025 Industrial nitrogen GB/T 4842-1995 Pure argon GB/T 4842-2006 Argon GB/T 4842-2017 Argon GB/T 4844-2011 Pure helium,high pure helium and ultra pure helium GB 4844.2-1995 Pure helium GB/T 4844.3-1995 High purity helium GB/T 6040-2002 General rules for infrared analysis GB/T 6040-2019 General rules for infrared analysis GB/T 6678-2003 General principles for sampling chemical products GB/T 8170-1987 Rules for rounding off of numberical values GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values GB/T 8979-1996 Pure nitrogen GB/T 8979-2008 Pure nitrogen and high purity nitrogen and ultra pure nitrogen GB/T 8979-2025 Pure nitrogen,high purity nitrogen and ultra pure nitrogen GB/T 18374-2001 Vocabulary—Terms for reinforcements GB/T 18374-2008 Vocabulary—Terms for reinforcements GB/T 18374-2022 Terminology for reinforcements GB/T 21781-2008 Test methods for melting point and melting range of chemical products—Capillary tube method GB/T 40724-2021 Terminology for carbon fiber and carbon fiber composites JJG 342-2014 Gel Permeation Chromatographs JJG 342-1993 Verification Regulation of Gel Chromatograph JJG 1135-2017 Thermogravimetric Analyzers JJF 1321-2011 Calibration Specification for Elemental Analyzers GB/T 4844-2025 Pure helium,high purity heliun and ultra purity helium

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