GB/T 4757-2025 Active National standards

GB/T 4757-2025 Methods for the batch-flotation testing of fine coal

Publish Date: 2025-08-29 Implement Date: 2026-03-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 4757-2025

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Coal sorting

ICS Name: \nCoal

Publish Date: 2025-08-29

Implement Date: 2026-03-01

Publisher: 国家市场监督管理总局、国家标准化管理委员会

Technical Committee: 全国煤炭标准化技术委员会(SAC/TC 42)

Pages: 20 pages

Scope

本文件规定了煤粉（泥）实验室单元浮选试验的煤样、试验设备和用具、试验煤样与浮选剂用量计算、可比性浮选试验和浮选参数试验。
本文件适用于烟煤和无烟煤。

Development Information

Drafting Units:

中煤科工集团唐山研究院有限公司、天地(唐山)矿业科技有限公司、华能煤炭技术研究有限公司

Drafting Persons:

邓明瑞、许晨涛、史冰森、潘博、鲍玉新、郑云婷、刘晟杰、顾雷雨、冯来宏

Word Count: 33 Thousand words Pages: 20 pages

Replace the following standards

GB/T 4757-2013 Methods for the batch flotation testing of fine coal

Referenced Standards

GB/T 211-1996 Determination of total moisture in coal GB/T 211-2007 Determination of total moisture in coal GB/T 211-2017 Determination of total moisture in coal GB/T 212-2001 Proximate analysis of coal GB/T 212-2008 Proximate analysis of coal GB/T 213-1996 Determination of calorific value of coal GB/T 213-2003 Determination of calorific value of coal GB/T 213-2008 Determination of calorific value of coal GB/T 214-1996 Determination of total sulfur in coal GB/T 214-2007 Determination of total sulfur in coal GB/T 475-2008 Method for manual sampling of commercial coal GB/T 477-1998 Method for size analysis of coal GB/T 477-2008 Method for size analysis of coal GB/T 30047-2013 Methods for evaluating the flotability of fine coal GB/T 30049-2013 Test method for washability of coal core sample GB/T 34164-2017 Method for evaluation of flotation technological performance in coal preparation plant GB/T 214-2026 Determination of total sulfur in coal

Related Standards

GB 5751-1986 Replaced

GB 5751-1986 Classification of Chinese coals

Publish Date: 1986-01-09

GB 481-1993 abolished_transferred

GB 481-1993 Sampling method of coal sample for production

Publish Date: 1993-02-19

GB/T 15223-1994 Replaced

GB/T 15223-1994 Plastics—Liquid resins—Determination of density by the pyknometer method

Publish Date: 1994-09-24

GB/T 15224.1-1994 Replaced

GB/T 15224.1-1994 Classification for quality of coal—Classification for ash yield of coal

Publish Date: 1994-09-24

GB/T 15224.2-1994 Replaced

GB/T 15224.2-1994 Classification for quality of coal—Classification for sulphur content of coal

Publish Date: 1994-09-24

GB/T 15224.3-1994 Replaced

GB/T 15224.3-1994 Classification for quality of coal—Classification for calorific value of coal

Publish Date: 1994-09-24