GB/T 36144-2018 in English
VALIDLimit on element content of lead,arsenic,cadmium,mercury,fluorine and chlorine in iron ore
- Issued on:2018-05-14
- Implemented on:2019-04-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$59.00
《GB/T 36144-2018铁矿石中铅、砷、镉、汞、氟和氯含量的限量》由TC317(全国铁矿石与直接还原铁标准化技术委员会)归口,主管部门为中国钢铁工业协会。
Introduction
Interpretation of GB/T 36144—2018 National Standard of the People's Republic of China
This standard specifies the limit requirements, sampling and sample preparation, and determination methods for lead, arsenic, cadmium, mercury, fluorine and chlorine in iron ore. It is applicable to natural and processed iron ore for steel smelting.
Background and significance of the standard
With the development of the steel industry, the quality requirements of iron ore are becoming increasingly stringent. The formulation of GB/T 36144—2018 aims to ensure the quality of raw materials in the steel production process and prevent the excessive harmful elements from affecting the environment and human health.
Comparison of Standard Frameworks
| Item | Limit Requirements | Determination Method |
|---|---|---|
| Lead | ≤0.60% | GB/T 6730.42, GB/T 6730.54, SN/T 2262, SN/T 2680 |
| Arsenic | ≤0.45% | GB/T 6730.45, GB/T 6730.46, SN/T 2765.3, SN/T 2765.4 |
| Cadmium | ≤0.40% | SN/T 2680, GB/T 6730.72 |
| Mercury | ≤0.05% | GB/T 31947, SN/T 3004 |
| Fluorine | ≤4.50% | GB/T 6730.26, GB/T 6730.27, GB/T 6730.28, GB/T 6730.69 |
| Chlorine | ≤0.40% | GB/T 6730.69 |
Implementation Suggestions
Suggestions: In actual operation, enterprises should select appropriate determination methods according to standard requirements and formulate corresponding quality control measures based on actual conditions. At the same time, it is recommended to regularly test iron ore samples to ensure compliance with national standards.

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