Phosphate Fertilizer Testing
Product types: superphosphate, superphosphate, calcium magnesium phosphate fertilizer, monoammonium phosphate, diammonium phosphate, potassium dihydrogen phosphate, nitrophosphate, phosphate powder, citric acid soluble phosphate fertilizer, water-soluble phosphate fertilizer, compound phosphate fertilizer, phosphorus containing compound fertilizer, etc.
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Product Introduction
Detection range
(1) Product types: superphosphate, superphosphate, calcium magnesium phosphate fertilizer, monoammonium phosphate, diammonium phosphate, potassium dihydrogen phosphate, nitrophosphate, phosphate powder, citric acid soluble phosphate fertilizer, water-soluble phosphate fertilizer, compound phosphate fertilizer, phosphorus containing compound fertilizer, etc.
(2) Applicable scenarios: raw material acceptance, production quality control, finished product factory inspection, fertilizer efficiency evaluation, soil suitability testing, market supervision spot checks, environmental safety testing, arbitration testing.
Testing items
(1) Appearance and physical and chemical properties
Appearance, color, odor, particle size, moisture, pH value, density, solubility, free acid, free moisture, clumping, stability.
(2) Effective nutrient indicators
Effective phosphorus content, water-soluble phosphorus content, citric acid soluble phosphorus content, total phosphorus content, and phosphorus nutrient utilization efficiency.
(3) Secondary components and trace elements
Content of nitrogen, potassium, calcium, magnesium, sulfur, silicon, iron, aluminum, manganese, zinc, boron, etc.
(4) Limit of harmful substances
Heavy metals: lead, cadmium, mercury, arsenic, chromium
Harmful substances: fluoride, radioactive substances, free acids, insoluble substances, pathogenic bacteria.
(5) Physical performance
Particle size distribution, bulk density, moisture absorption, moisture resistance, compressive strength, dispersibility.
(6) Fertilizer efficiency and application performance
Phosphorus release rate, crop absorption rate, fertilizer efficiency period, soil compatibility, and compatibility with other fertilizers.
Testing standards
GB/T 6274 Fertilizer Terminology and Definitions
GB/T 6275 Fertilizer Sampling Procedure
GB/T 6436 Determination of Calcium in Feed (General purpose for Phosphate Fertilizer)
GB/T 8571 Preparation of laboratory samples of compound fertilizers
GB/T 8573 Determination of Effective Phosphorus Content in Compound Fertilizers
GB/T 10209 Monoammonium Phosphate, Diammonium Phosphate
GB/T 10510 Nitrophosphate Fertilizer
GB/T 10511 Potassium dihydrogen phosphate
GB/T 20412 Calcium Magnesium Phosphate Fertilizer
GB/T 20413 Calcium Superphosphate
GB 38400 Limits for Toxic and Harmful Substances in Fertilizers
NY/T 1973 Requirements for Mercury, Arsenic, Cadmium, Lead, and Chromium Content in Water soluble Fertilizers
was established in 2011. As a national high-tech enterprise recognized by the Zhejiang Provincial Higher People's Court as a judicial authentication institution for construction engineering quality, we specialize in structural performance testing and safety assessment of construction projects, special equipment, communication towers, electromagnetic environments, large bridges, and building safety appraisal.
The company has more than 100 professional and technical personnel, over 90% of whom hold various medium and senior technical certificates. Equipped with complete testing equipment worth over RMB 10 million, our business scope covers the whole country.
