YS/T 990.9-2025 Pending Industry standards-Non-ferrous metals

YS/T 990.9-2025 Ice copper chemical analysis method Part 9: Determination of total iron and iron trioxide content

Publish Date: 2025-12-17 Implement Date: 2026-07-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: YS/T 990.9-2025

Standard Type: Industry standards

Standard Status: Pending

is_force_gb: no

CCS Name: Analysis methods for heavy metals and their alloys

ICS Name: Copper and copper alloys

Publish Date: 2025-12-17

Implement Date: 2026-07-01

Publisher: 工业和信息化部

Scope

本文件描述了冰铜中总铁和四氧化三铁含量的测定方法。本文件适用于冰铜中总铁和四氧化三铁含量的测定。本文件不适用于含单质铁、单质钴、单质镍等磁性物质含量大于 0. 10%的冰铜样品中四氧化三铁的测定。

Development Information

Drafting Units:

Drafting Persons:

Replace the following standards

YS/T 990.9-2014 Methods for chemical analysis of copper matte—Part 9:Determination of iron content—Potassium dichromate titration method

Related Standards

GB/T 5187-1985 Replaced

GB/T 5187-1985 Copper foil

Publish Date: 1985-05-18

GB/T 5188-1985 Replaced

GB/T 5188-1985 Brass foil

Publish Date: 1985-05-18

GB/T 5189-1985 Replaced

GB/T 5189-1985 Bronze foil

Publish Date: 1985-05-18

GB/T 6149-1985 Replaced

GB/T 6149-1985 New constantan resistance alloy

Publish Date: 1985-06-21

GB/T 5246-1985 Replaced

GB/T 5246-1985 Electrolytic copper powder

Publish Date: 1985-07-22

GB/T 8010-1987 Replaced

GB/T 8010-1987 HPb63-0.1 leaded brass tube for air valve mouth applications

Publish Date: 1987-04-22