GB/T 36144-2018 PDF English
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GB/T 36144-2018: Limit on element content of lead, arsenic, cadmium, mercury, fluorine and chlorine in iron ore
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GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 73.060.10 D 31 Limit on element content of lead, arsenic, cadmium, mercury, fluorine and chlorine in iron ore Issued on: MAY 14, 2018 Implemented on: APRIL 01, 2019 Issued by. State Administration for Market Regulation; Standardization Administration of the People's Republic of China.
Table of Contents
Foreword ... 3 1 Scope ... 4 2 Normative references ... 4 3 Terms and definitions ... 5 4 Requirements for limit ... 5 5 Sampling and sample preparation ... 6 6 Determination methods ... 6 Limit on element content of lead, arsenic, cadmium, mercury, fluorine and chlorine in iron ore1 Scope
This Standard specifies the limit on element content of lead, arsenic, cadmium, mercury, fluorine and chlorine in iron ore, sampling, sample preparation as well as determination methods. This Standard is applicable to natural and processed iron ore for steel smelting.2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 6730.26, Iron ores - Determination of fluorine content - Thorium nitrate titrimetric method GB/T 6730.27, Iron ores - Determination of fluorine content – Lanthanum- alizarin complexion spectrophotometric method GB/T 6730.28, Iron ores - Determination of fluorine content - Ion-selective electrode method GB/T 6730.42, Iron ores - Determination of lead content - Dithizone spectrophotometric method GB/T 6730.45, Iron ores - Determination of arsenic content - Arseno- molybdenum blue spectrophotometric method after hydrogen arsenide separation GB/T 6730.46, Iron ores - Determination of arsenic content - Arseno- molybdenum blue spectrophotometric method after the distillation separation GB/T 6730.54, Iron ores - Determination of lead content - Flame atomic absorption spectrometric method GB/T 6730.67, Iron ores - Determination of arsenic content - Hydride generation atomic absorption spectrometric method GB/T 6730.69, Iron ores - Determination of fluoride and chloride content - Ion chromatography GB/T 6730.72, Iron ores - Determination of arsenic, chromium, cadmium, lead and mercury content - Inductively coupled plasma-mass spectrometry method (ICP-MS) GB/T 10322.1, Iron ores - Sampling and sample preparation procedures GB/T 20565, Iron ores and direct reduced iron - Vocabulary GB/T 31947, Iron ores - Determination of mercury content - Solid sampling and direct mercury analysis method SN/T 2262, Determination of aluminum, arsenic, calcium, copper, magnesium, manganese, phosphorus, lead, zinc in iron ores. Inductively coupled plasma atomic emission spectrometry SN/T 2680, Determination of arsenic mercury cadmium lead bismuth in iron ores - Atomic fluorescence spectrometric method SN/T 2765.3, Simultaneous determination of arsenic and mercury content in iron ores. Microwave-assisted digestion-atomic fluorescence spectrometry SN/T 2765.4, Determination of arsenic in iron ores for import and export - Part 4. Hydride generation atomic absorption spectrometric method SN/T 3004, Determination of Mercury Content in Iron Ores. Microwave Digestion - Cold Atomic Absorption Spectrophotometry Method3 Terms and definitions
For the purposes of this document, the terms and definitions defined in GB/T 20565 apply.4 Requirements for limit
4.1 The content of lead in iron ore (mass fraction) is not more than 0.60%. 4.2 The content of arsenic (mass fraction) in iron ore is not more than 0.45%. 4.3 The content of cadmium (mass fraction) in iron ore is not more than 0.40%. 4.4 The content of mercury (mass fraction) in iron ore is not more than 0.05%. 4.5 The content of fluorine (mass fraction) in iron ore is not more than 4.50%. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
