What is Chemical and Mineral Inspection in Ocean Shipping?

2025-06-18 14:42

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Waytron has a long-term and stable relationship with many carriers. With our strong strength, professional team, scientific system and sound network, Waytron can provide our customers with one-stop global logistics services, which are now can be involved in many countries such as USA, Canada, Europe, Australia and southeast Asia, and so on. Waytron can handle FCL, LCL, and special shipments, also providing reliable SOC service and competitive rates for TP trades, especially to USA and Canada inland locations, such as Dallas, El Paso, Portland, Houston, Calgary and Winnipeg.   

Waytron Overseas Department is in charge of working with the overseas agents, including D/O, Customs Clearance, Door Delivery and Transshipment to ensure the high-quality services.

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1. Definition and Significance of Chemical and Mineral Inspection

Chemical and mineral inspection refers to the inspection and testing of chemical products and mineral products involved in ocean shipping. Chemical products include plastic raw materials, chemical reagents, coatings, etc.; mineral products cover iron ore, coal, copper concentrate, etc. These products often have characteristics such as flammability, explosiveness, toxicity, and corrosiveness, or their quality and weight have a significant impact on trade settlement. Through chemical and mineral inspection, transportation safety can be ensured, and accidents caused by unstable properties of goods can be avoided. At the same time, it ensures that the quality and weight of goods meet the requirements of contracts, safeguards the legitimate rights and interests of both trading parties, and reduces trade disputes.

2. Main Contents of Chemical and Mineral Inspection

(1) Quality Inspection

Detect the chemical composition, physical properties, specification indicators, etc. of chemical and mineral products. For example, inspect the iron content, silica content, and particle size distribution of iron ore; test the purity, pH value, melting point, etc. of chemical raw materials to determine whether they meet the requirements of contracts or industry standards.

(2) Safety Performance Inspection

Evaluate the hazardous characteristics of chemical products, such as measuring the flash point of flammable liquids, the ignition point of flammable solids, and the corrosion rate of corrosive substances, to ensure that the goods will not cause safety accidents due to their own properties during transportation.

(3) Weight and Quantity Inspection

Use methods such as weighing by weighing instruments, draft survey, and volumetric weighing to accurately measure the weight of the goods; count the quantity of packaged goods to ensure fair trade between the two trading parties in terms of weight and quantity of the goods.

(4) Packaging and Labeling Inspection

Check whether the packaging of chemical and mineral products meets the requirements of ocean shipping, and whether it has good sealing, compression resistance, leak prevention, etc.; at the same time, confirm whether the hazardous labels, goods names, weights, origins and other information on the packaging are clear and accurate for easy transportation and identification.

3. Process of Chemical and Mineral Inspection

  1. Inspection Declaration: The consignor or agent submits an inspection application to the inspection agency within the specified time, and provides relevant materials such as contracts, invoices, packing lists, and product instructions.

  2. Sampling: Inspection personnel draw representative samples from the entire batch of goods according to sampling standards. The sampling methods and quantities must strictly follow relevant specifications to ensure the accuracy of inspection results.

  3. Laboratory Testing: Send the drawn samples to a professional laboratory, and use various instruments, equipment and testing methods to analyze and test various indicators of the goods.

  4. On-site Inspection: Inspection personnel go to the goods storage site to check the packaging, labeling, and storage conditions of the goods; inspect the weight and quantity, such as using draft survey to measure the weight of mineral products carried by ships.

  5. Result Evaluation and Certificate Issuance: Evaluate according to the test and inspection results against the requirements of contracts and standards. If the goods meet the requirements, the inspection agency will issue a qualified inspection certificate; if not, it will issue an unqualified report and explain the reasons.

4. Comparison of Inspection Key Points for Different Chemical and Mineral Products

Product CategoryQuality Inspection Key PointsSafety Performance Inspection Key PointsWeight and Quantity Inspection MethodsPackaging and Labeling Requirements
Chemical Raw MaterialsPurity, impurity content, chemical stabilityFlash point, toxicity, corrosivenessVolumetric weighing, weighing by weighing instrumentsSealed packaging, affix hazardous chemical labels, indicate ingredients and emergency handling methods
Mineral ProductsMetal content, harmful element content, particle sizeRadioactivity (for some mineral products)Draft survey, belt scale weighingFirm packaging, label the goods name, origin, weight and other information
Hazardous ChemicalsComponent ratio, reactivityExplosion limit, auto-ignition point, toxicityWeighing by weighing instrumentsPackaging meeting UN standards, clearly mark the hazard class, UN number of dangerous goods


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