GB/T 14551-1993
Replaced
T/GZHG 034-2023
Active
Group standards
T/GZHG 034-2022 Cationic Active Passivation Materials for Cadmium, Lead, and Zinc in Phosphorus Tailings Production
T/GZHG 034-2023
Price:
$ 30
Basic Information
Standard Code:
T/GZHG 034-2023
Standard Type:
Group standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
-
ICS Name:
Integrated agriculture and forestry
Publish Date:
2023-07-06
Implement Date:
2023-07-06
Scope
Main Technical Content: 4.1 Appearance: Powdery with uniform color and no clumping. 4.2 Physical and Chemical Indicators: The physical and chemical indicators shall comply with the requirements specified in Table 1. **Table 1: Physical and Chemical Indicators** Indicator Value pH 11–13 Phosphorus pentoxide (P2O5) 5.0–8.0 Calcium oxide (CaO) ≥35.0 Magnesium oxide (MgO) ≥18.0 Silica (SiO2) ≤3.0 Potassium oxide (K2O) ≤1.0 Cadmium (Cd) ≤0.0001 Lead (Pb) ≤0.0030 Zinc (Zn) ≤0.0150 Loss on ignition (LOI) ≤28.0 Fineness (through a 150 μm sieve) ≥90 **Test Methods** 5.1 Visual inspection of appearance. 5.2 pH value: Conduct the test according to the requirements of HJ 962-2018. 5.3 Phosphorus pentoxide (P2O5): Conduct the test according to the requirements of GB/T 1871.1. 5.4 Calcium oxide (CaO): Conduct the test according to the requirements of GB/T 1871.4. 5.5 Magnesium oxide (MgO): Conduct the test according to the requirements of GB/T 1871.5. 5.6 Silica (SiO2): Conduct the test according to the requirements of GB/T 1873. 5.7 Potassium oxide (K2O): Conduct the test according to the requirements of GB/T 1879. 5.8 Cadmium (Cd): Conduct the test according to the requirements of GB/T 17141. 5.9 Lead (Pb): Conduct the test according to the requirements of GB/T 17141. 5.10 Zinc (Zn): Conduct the test according to the requirements of GB/T 17138. 5.11 Loss on ignition (LOI): Conduct the test according to the requirements of GB/T 1875. 5.12 Fineness: Conduct the test according to the requirements of GB/T 6300.1. 5.13 Net content: Conduct the test according to the requirements of JJF 1070. **6 Testing Rules** 6.1 Classification of tests --- **Notes:** - Technical terms are translated according to their standard definitions in Chinese. - Standards and norms are referenced using their official Chinese titles. - Test methods and procedures are described in detail to ensure clarity. - Un
Development Information
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