Environmental Protection Industry Standard of the People's Republic of China HJ/T299-2007 Solid Waste Leaching Toxicity Leaching Method - Sulfuric Acid-Nitric Acid Method:
This method uses a nitric acid/sulfuric acid mixed solution as the leaching agent to simulate the process where harmful components in waste leach out into the environment under the influence of acidic precipitation during land use of waste after non-standard landfill disposal, stockpiling, or harmless treatment.

The JRY black crystal electric heating plate features a surround heating design, offering a large heating area capable of processing multiple samples simultaneously. Each heating point maintains uniform temperature with rapid heating, reaching up to 450°C. It employs PDD precise digital temperature control and can operate continuously for over 48 hours.

JRY constant temperature flipping shaker. It adopts a modular design, allowing for stacking and placement, greatly saving valuable space for the laboratory. The appearance adopts a durable stainless steel spray coating process, which is not only beautiful but also easy to clean and maintain. Flipping shaker

The JRY-NS-42 parallel concentrator in Jinrongyuan adopts a 42 channel parallel sample concentration method. The concentration process uses water bath gradient heating, vortex oscillation, negative pressure evaporation, solvent recovery and other processes to ensure rapid concentration of samples, increase the concentration of target substances in samples, and ensure the detection limit and accuracy of laboratory test results.

The horizontal shaker is suitable for the horizontal shaking method for leaching toxic substances from solid waste, as specified equipment in the National Environmental Protection Standard of the People's Republic of China, ‘Horizontal Shaking Method for Leaching Toxic Substances from Solid Waste’ (HJ557-2010). It is applied in environmental monitoring, solid waste disposal, and other industries related to the toxicity identification, research, treatment, and disposal of solid waste.

Constant Temperature Shaker JRY-HWZD Suitable for use with the following Chinese National Environmental Protection Standards: ‘Solid Waste Leaching Toxicity - Leaching Method: Horizontal Shaking Method’ (HJ557-2010), Determination of Soil Electrical Conductivity by Electrode Method (HJ802-2016), and Determination of Soil Ammonium Nitrogen, Nitrite Nitrogen and Nitrate Nitrogen by Potassium Chloride Solution Extraction-Spectrophotometric Method (HJ634-2012), among other standards.