GB/T 14849.2-1993
Replaced
GB/T 6730.13-2025
Active
National standards
GB/T 6730.13-2025 Iron ores—Determination of calcium and magnesium content—EGTA-CyDTA titrimetric method
GB/T 6730.13-2025 Iron ores—Determination of calcium and magnesium content—EGTA-CyDTA titrimetric method
Basic Information
Standard Code:
GB/T 6730.13-2025
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Iron ore
ICS Name:
Iron ore
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:
全国铁矿石与直接还原铁标准化技术委员会(SAC/TC 317)
Pages:
20 pages
Scope
本文件描述了用EGTA-CyDTA滴定法测定铁矿石中钙和镁含量的方法。
本文件适用于天然铁矿石、铁精矿、烧结矿和球团矿中钙和镁含量的测定；测定范围(质量分数):钙含量1.50%～15.00%,镁含量≥1.00%。
Development Information
Drafting Units:
中钢集团马鞍山矿山研究总院股份有限公司、中国检验认证集团河北有限公司、华北理工大学、宝武资源有限公司、阳春新钢铁有限责任公司、冶金工业标准信息研究院、攀钢集团研究院有限公司、铜陵有色金属集团控股有限公司技术中心
Drafting Persons:
徐修平、华绍广、廖飞、李香梅、左玉昊、杨倩、张卫国、李波、李培亮、张欣欣、汪洋、周卫平、江学、夏向伟、刘林刚、马林林、党勇、刘欠、程欢、万立力、汪岩、张文娟、刘力维、张晨、高春庆、袁启东
Same series standard
GB/T 6730.11-2025 Iron ores—Determination of aluminium content—EDTA titrimetric method
GB/T 6730.23-2025 Iron ores—Determination of titanium content—The ferric ammonium sulfate titrimetric method
GB/T 6730.24-2025 Iron ores—Determination of total rare earth contents—Arsenazo Ⅲ spectrophotometric method
GB/T 6730.45-2025 Iron ores—Determination of arsenic content—Arseno-molybdenum blue spectrophotometric method after hydrogen arsenide separation
GB/T 6730.46-2025 Iron ores—Determination of arsenic content—Arseno-molybdenum blue spectrophotometric method after the distillation separation
GB/T 6730.90-2025 Iron ores—Determination of gold,silver,platinum,palladium contents—Inductively coupled plasma mass spectrometry method
Replace the following standards
Referenced Standards
GB/T 601-2002 Chemical reagent Preparations of standard volumetric solutions
GB/T 601-2016 Chemical reagent—Preparations of reference titration solutions
GB/T 6682-1992 Water for analytical laboratory use—Specification and test methods
GB/T 6682-2008 Water for analytical laboratory use—Specification and test methods
GB/T 6730.1-1986 Methods for chemical analysis of iron ores—Preparation of predried test samples for chemical analysis
GB/T 6730.1-2016 Iron ores—Preparation of predried test samples for chemical analysis
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 10322.1-2000 Iron ores—Sampling and sample preparation procedures
GB/T 10322.1-2014 Iron ores—Sampling and sample preparation procedures
GB/T 10322.1-2023 Iron ores—Sampling and sample preparation procedures
GB/T 12805-1991 Laboratory glassware—Burettes
GB/T 12805-2011 Laboratory glassware—Burettes
GB/T 12806-1991 Laboratory glassware—One-mark volumetric flasks
GB/T 12806-2011 Laboratory glassware—One-mark volumetric flasks
GB/T 12808-1991 Laboratory glassware—One-mark pipettes
GB/T 12808-2015 Laboratory glassware—One mark pipettes
Related Standards
GB/T 10322.1-2000
Replaced
GB/T 10322.1-2000 Iron ores—Sampling and sample preparation procedures
GB/T 10322.2-2000
Active
GB/T 10322.2-2000 Iron ores—Experimental methods for evaluation of quality variation
GB/T 10322.3-2000
Replaced
GB/T 10322.3-2000 Iron ores—Experimental methods for checking the precision of sampling
GB/T 10322.4-2000
Replaced
GB/T 10322.4-2000 Iron ores—Experimental methods for checking the bias of sampling
GB/T 10322.5-2000
Replaced