Current Category: CN-DB53 - Yunnan Province
This standard applies to the procurement of Job's tears from Shizong County
This standard applies to the management of coix seed plants in Shizong County
This section applies to the cultivation and production of coix seed in Shizong County
This section applies to the production of Yiren in Shizong County, the management of high-quality seeds, the layout of varieties, and field areas
This section applies to the cultivation of Job's tears in Shizong County
This standard specifies the design of vegetation restoration techniques for mining areas during the mining and selection process, including techniques for vegetation restoration of waste dump sites, open-pit mining sites, tailings ponds, mine roads, mining industrial sites, subsidence areas, and gangue piles. This standard applies to the vegetation restoration of coal mines, metal mines, non-metallic mines, and sand and gravel mines, etc.
This standard specifies the terms and definitions of automotive brake drums, the composition of brake drums, requirements, test methods, inspection rules, marking, packaging, and storage. This standard applies to gray cast iron automotive brake drums. Brake drums made of other materials and those used in engineering vehicles and agricultural vehicles can also be implemented with reference to this standard.
This section specifies the method for determining the silicon content in direct reduced iron. This section is applicable to the determination of the silicon content in direct reduced iron. The measurement range (mass fraction): 0.50% to 5.00%.
This part specifies the method for determining the phosphorus content in direct reduced iron. This part is applicable to the determination of phosphorus content in direct reduced iron. The measurement range (mass fraction): 0.010% to 0.50%.
This part specifies the method for determining the manganese content in direct reduction iron. This part is applicable to the determination of manganese content in direct reduction iron. The determination range (mass fraction): 0.10% to 2.00%.
This part specifies the determination methods for the contents of silicon dioxide, calcium oxide, magnesium oxide, phosphorus, aluminum oxide, manganese, titanium dioxide, potassium oxide, and copper in direct reduction iron. This part is applicable to the determination of the contents of silicon dioxide, calcium oxide, magnesium oxide, phosphorus, aluminum oxide, manganese, titanium dioxide, potassium oxide, and copper in direct reduction iron. The determination ranges (mass fractions) of each component are shown in Table 1. Table 1 Determination Ranges of Each Component Component Determination Range (Mass Fraction) % SiO2 0.25–10.00 CaO 0.10–10.00 MgO 0.10–10.00 P 0.010–2.00 Al2O3 0.10–14.00 Mn 0.10–5.00 TiO2 0.010–10.00 K2O
This section specifies the method for determining the total iron content in direct reduced iron. This section is applicable to the determination of the total iron content in direct reduced iron. The measurement range (mass fraction): ≥50%.