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Ammonium sulfate and ammonium nitrate inspection is a crucial quality control process conducted at various stages of the logistics chain. It minimizes major trade risks related to discrepancies in cargo specifications, quantity shortages, or incomplete documentation during ammonium sulfate and ammonium nitrate export and import operations.

CISS GROUP provides ammonium sulfate and ammonium nitrate inspection services to large agribusinesses and international trading companies at intermediate storage warehouses, elevators, factories, and ports worldwide.

Ammonium sulfate and ammonium nitrate must be stored in closed warehouses to prevent exposure to precipitation. Ammonium nitrate, whether packed in paper bags or in bulk, requires storage at a temperature not exceeding 30°C with air humidity levels below 50%. It must not be mixed with other fertilizers. Ammonium sulfate, packaged in specialized soft containers (big bags), can be stored in open areas for no more than one month. These fertilizers are transported in both packed and bulk forms by all modes of transport except air, adhering to the relevant transportation regulations. Ammonium nitrate must be stored and transported separately from other materials and substances.
Accredited inspectors and laboratory technicians from CISS GROUP conduct ammonium sulfate and ammonium nitrate inspections at every point in the supply chain.

The main stages of ammonium sulfate/ammonium nitrate inspection:

Incoming/outgoing ammonium sulfate and ammonium nitrate inspection

This stage occurs when ammonium sulfate or ammonium nitrate is delivered to silos or ports or when it is released from factory or silo warehouses. CISS GROUP inspectors assess the suitability of storage premises and verify that the cargo remains dry, uncontaminated, and free from pests, mold, or foreign odors. If the product is delivered in bags, inspectors examine them for traces of moisture damage and, if agreed, open selected bags for sampling and further quality verification.

Cleanliness inspection of containers and vessel holds before loading

A visual inspection of containers and empty holds ensures cleanliness and suitability for ammonium sulfate and ammonium nitrate transportation. Inspectors examine internal surfaces, assess the integrity of locks, hinges, and other fasteners on container doors, and inspect rubber seals on container doors and hold covers.

Loading supervision and sampling

During loading, inspectors oversee the process, verify gross and net weight through re-weighing, and perform weight checks for bulk cargo using the draft survey method. They oversee fumigation, conduct visual quality assessments, and collect samples per regulatory sampling procedures. Once loading is complete, containers or holds are sealed, and comprehensive reports are generated with direct client access.

CISS GROUP provides 24/7 loading inspection and sampling services.

Laboratory analysis of ammonium sulfate and ammonium nitrate quality

Ammonium sulfate and ammonium nitrate quality testing is conducted exclusively in accredited laboratories according to international standards and national methodologies (ISO, CEN, TFI). Key quality parameters include:

• Total mass fraction of nitrate and ammonium nitrogen
• Mass fraction of water
• pH level
• Mass fraction of insoluble substances
• Particle size distribution
• Static strength of granules
• Friability

Photo and video documentation

Each inspection stage is documented with photos and videos, including timestamps. Upon completion, CISS GROUP provides a comprehensive photo report covering all aspects of the inspection.

Certificates and documentation

Following ammonium sulfate and ammonium nitrate inspection, a final certificate or detailed report is issued. Clients can verify document authenticity using a unique QR code linked to the CISS GROUP website, where digital certificates are securely stored. These certificates feature a digital cryptographic signature, ensuring authenticity and security.

Digitally signed certificates are often required by banks for verifying trade integrity in transactions involving letters of credit.

CISS GROUP ensures transparency, reliability, and compliance in every ammonium sulfate and ammonium nitrate inspection, safeguarding the interests of all stakeholders in the global supply chain.

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