GB/T 20186.3-2023Secondary coating materials used for optical fibre - Part 3: Modified polycarbonate (English PDF)

1 Scope

This document specifies the requirements, inspection rules, marking, packaging, transportation and storage of secondary coating material modified polycarbonate (MPC) for optical fibers:

Requirements exist and the corresponding test methods are described:

This document applies to the development, production, use and inspection of MPC, the secondary coating material for optical fibers:

2 Normative reference documents

The contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, the dated quotations

For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to this document:

GB/T 1033:1-2008 Determination of density of plastic non-foam plastics Part 1: Dip method, liquid pycnometer method and titration method

GB/T 1034-2008 Determination of water absorption of plastics

GB/T 1036-2008 Determination of linear expansion coefficient of plastics at -30°C~30°C Quartz dilatometer method

GB/T 1040:1 Determination of tensile properties of plastics Part 1: General principles

GB/T 1040:2-2022 Determination of tensile properties of plastics Part 2: Test conditions for molded and extruded plastics

GB/T 1634:1 Determination of load deformation temperature of plastics Part 1: General test methods

GB/T 1634:2-2019 Determination of load deformation temperature of plastics Part 2: Plastics and hard rubber

GB/T 1843-2008 Determination of impact strength of plastic cantilever beams

GB/T 2411-2008 Determination of indentation hardness (Shore hardness) of plastics and hard rubber using a durometer

GB/T 2918 Standard environment for conditioning and testing of plastic specimens

GB/T 3682:1-2018 Plastic thermoplastic melt mass flow rate (MFR) and melt volume flow rate (MVR)

Determination of Part 1: Standard Methods

GB/T 8170 Numerical rounding rules and expression and determination of limit values

GB/T 9341-2008 Determination of bending properties of plastics

GB/T 17037:1 Preparation of injection molded specimens of plastic thermoplastic materials - Part 1: General principles and multi-purpose specimens and lengths

Preparation of strip specimens

GB/T 17037:4-2003 Preparation of injection molding specimens of plastic thermoplastic materials Part 4: Determination of molding shrinkage

GB/T 20186:2-2021 Secondary coating materials for optical fibers Part 2: Modified polypropylene

GB/T 26125 Determination of six restricted substances (lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls and polybrominated diphenyl ethers) in electronic and electrical products

GB/T 31838:2 Dielectric and resistive properties of solid insulating materials Part 2: Resistive properties (DC method) Volume resistance and volume

Sheet resistivity

GB/T 39560:8 Determination of certain substances in electrical and electronic products - Part 8: Gas chromatography-mass spectrometry (GC-MS) and preparation

Determination of Phthalates in Polymers by Gas Chromatography-Mass Spectrometry (Py/T D-GC-MS) with Thermal Cracking/Thermal Desorption

3 Terms and definitions

The following terms and definitions apply to this document: