T/NXCL 008-2021 Active Group standards

T/NXCL 008-2021 Silver flakes for electronics industry

Publish Date: 2021-11-11 Implement Date: 2021-11-11 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: T/NXCL 008-2021

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Electronic devices and specialized materials, parts, and structural components

ICS Name: Terminology (principles and coordination and cooperation)

Publish Date: 2021-11-11

Implement Date: 2021-11-11

Scope

Main technical content: This document specifies the classification, technical requirements, test methods, batch mixing rules, inspection rules, and packaging, marking, transportation, and storage of silver powder for the electronics industry. It defines the scope and classification of silver powder applicable to this standard. It also includes methods for determining silver powder and referenced documents, methods for determining silver powder grades, technical requirements and product classification, inspection, sampling, packaging, transportation, and arbitration solutions for disputes arising during inspection. The classification of silver powder for the electronics industry is based on its morphology, which can be divided into three categories: spherical silver powder, flake silver powder, and amorphous microcrystalline silver powder. Spherical silver powder is divided into six specifications (AgR) according to customer requirements based on particle size. Flake silver powder is divided into 11 specifications (AgF) based on its flakiness and particle size. Amorphous submicron microcrystalline silver powder is divided into two specifications (AgSC) based on particle size. During the application process, customers first inspect the appearance of the silver powder and sample it for physical property indicators such as particle size distribution, specific surface area, tapped and bulk density, sheet resistance (for flake silver powder), and mass loss to evaluate its suitability for their products. Different testing methods and instruments used can affect the test results, so it is necessary to establish unified judgment criteria.