Chloroform Shipping Compliance: IATA DGR and IMDG Code Guide for CHCl3 Transport

Chloroform Shipping Under IATA and IMDG Regulations

Chloroform (CHCl3), classified as UN1888, Class 6.1 (Toxic Substance), Packing Group III, is a widely used solvent in pharmaceutical manufacturing, laboratory research, and chemical production. Despite its relatively lower toxicity classification within Class 6.1, shipping chloroform requires careful compliance with IATA DGR and IMDG Code regulations due to its health hazards and environmental concerns.

Classification and Regulatory Overview

Chloroform’s Packing Group III designation indicates the lowest relative danger level within Class 6.1, but shippers must not underestimate the regulatory requirements. Prolonged exposure to chloroform vapors causes serious organ damage, and the substance is classified as a possible carcinogen. Some formulations may also carry a marine pollutant designation under IMDG Code, adding environmental transport restrictions.

IATA DGR Air Shipping Requirements

Chloroform is permitted on both passenger and cargo aircraft. Passenger aircraft limits allow up to 25 liters per package, while cargo aircraft permits up to 100 liters. Inner packaging must not exceed 2.5 liters for passenger aircraft. All packaging requires UN Packing Group III certification, and freight forwarding documentation must include the Shipper’s Declaration for Dangerous Goods with complete hazard communication.

IMDG Code Ocean Freight Compliance

Maritime transport of chloroform follows standard Class 6.1 IMDG requirements. Stowage may be either on-deck or under-deck with proper ventilation. Segregation from foodstuffs and strong oxidizers is required. The container packing process must ensure adequate securing to prevent movement and potential container breach during rough seas.

Packaging Standards

Approved packaging for chloroform includes glass bottles in protective overpacks, HDPE jerricans, and steel or plastic drums with appropriate UN markings. Combination packaging with absorbent material between inner and outer containers provides additional spill protection. All packaging must be compatible with chloroform—certain plastics may degrade on contact.

Labeling and Documentation

Each package requires the Class 6.1 toxic substance label (skull and crossbones), UN1888 marks, and proper shipping name. If designated as a marine pollutant, the marine pollutant mark must also appear. Logistics coordinators should verify that SDS information accompanies all shipments for emergency responders.

Handling and Storage Protocols

Warehouse storage of chloroform requires well-ventilated areas away from strong oxidizers and caustic substances. Storage temperatures should remain moderate—chloroform can decompose in sunlight or high heat, producing toxic phosgene gas. Light-resistant containers or storage away from UV exposure is recommended for long-term inventory.

Workers handling chloroform shipments must use appropriate PPE including chemical-resistant gloves, splash goggles, and respiratory protection when vapor exposure is possible.