UN Number and Packing Grade Specification for Toluene Shipping?

Specification for UN Number and Packing Grade for Toluene Shipping

in the global chemical trade, toluene, as an important organic compound, is widely used in the manufacture of styrene, polyester resin and other chemical products. Due to its flammability, the maritime transport of toluene requires strict compliance with international regulations and safety standards to ensure safety during transportation. This article will discuss in detail the UN number and packaging grade specifications for toluene shipping to help practitioners understand how to properly transport this chemical.

1. toluene properties and maritime importance

Toluene (C6H5CH3) is a colorless, flammable liquid with an aromatic odor. It is flammable at room temperature, and the mixture of vapor and air may cause an explosion when ignited, so special attention should be paid to safety during transportation. Due to the wide application of toluene in industry and medicine, its shipping volume is huge. Improper packaging and transportation can lead to serious environmental risks and casualties, so it is important to understand the UN number and packaging grade specifications for toluene.

2. UN Numbering Basic Concepts

The UN number is an identifier in the United Nations Standard Code System for the Transport of Dangerous Goods (UN Number), which is used to identify various dangerous goods and articles. For toluene, its UN number is UN 1334. The numbering ensures uniform identification worldwide, enabling countries to follow consistent standards when transporting, storing and handling dangerous goods. In maritime transport, the UN number is usually marked on the packaging container so that customs, shipping companies and the receiving party can quickly identify the dangerous nature of the goods.

3. Toluene-Packing Grade Specification

Under the International Maritime Dangerous Goods Code (IMDG Code), toluene is classified as flammable liquid category 3(Flammable Liquids, Category 3). This classification is based on its flash point and ignition point characteristics, which determine the level requirements for its packaging and transportation. Packing grades I, II and III are applicable to different levels of dangerous goods.

1. Selection of packing grade For hazardous liquids such as toluene, type I packaging is usually used. The specific packaging level also needs to be determined according to the transportation distance, environmental risk and the sensitivity of the goods. For example, Type II packaging may be used for short-haul shipping, while higher-grade packaging is required for long-haul shipping.

2. Requirements for packaging materials Toluene packaging materials must have high strength and corrosion resistance to prevent leakage. Common packaging materials include steel drums, aluminum drums and plastic drums. Among them, steel and aluminum containers are commonly used for Class I packaging due to their robustness; while plastic drums are suitable for Class III packaging, but still need to meet UN packaging standards.

3. Label and Identification Each packaging container must be clearly marked with a UN number (UN 1334), hazardous material identification, shipping label (e. g. "Flammable Liquids") and safe handling precautions. These labels and markings help transport personnel to quickly identify the nature of the goods and take appropriate security measures.

4. Shipping Process Precautions

1. Preparation before transportation Before shipping toluene by sea, you must ensure that the packaging container complies with UN standards and that the label is clearly visible. Strict sealing inspection should be carried out to prevent leakage during transportation.

2. Monitoring during transportation Toluene should be kept away from fire and high temperature environment during transportation. The goods shall be stowed away from direct sunlight and shall be kept well ventilated to prevent danger from vapour accumulation.

3. Emergency treatment measures All transport vessels and ports should be equipped with necessary emergency equipment such as fire extinguishers and spill handling tools. Transport personnel are required to receive professional training in handling dangerous goods to deal with possible emergencies.

5. summary

The maritime transport of toluene involves complex regulations and safety standards, and the UN number and packing grade specifications are key factors to ensure the safety of transportation. By following international standards and regulations, transportation risks can be minimized and the safety of people and the environment can be guaranteed. For companies engaged in toluene shipping, understanding and strictly implementing these regulations is not only a legal requirement, but also a social responsibility. It is hoped that this paper can provide valuable reference for relevant practitioners to ensure the safe and efficient transportation of toluene.