How methanol and alcohols are transported: Standards and Requirements
An entry stating “alcohol, 20 tonnes” is not enough to establish transport requirements. Methanol, ethanol and isopropanol have different transport classifications; composition and concentration also matter for solutions. Start by identifying the exact product, then compare the documents, carriage method and equipment.
This sequence helps prepare the information needed to arrange methanol transport. The checks below concern road shipments under ADR: what to verify before dispatching a vehicle and which descriptions need clarification. A sea leg requires an additional review under IMDG.
Identify the substance and transport classification first
Ask the supplier for a current Safety Data Sheet (SDS) matching the exact product name or code. In Section 14, find the UN number, proper shipping name, class, subsidiary hazard and packing group. Compare these with the identification and composition sections: an SDS for a different grade does not establish the properties of the ordered material.
Substance | UN number | Class and packing group |
|---|---|---|
Methanol | UN 1230 | 3, subsidiary hazard 6.1; II |
Ethanol | UN 1170 | 3; II |
Isopropanol | UN 1219 | 3; II |
The table covers the named substances in pure form. Solutions and mixtures need a separate check of classification, ADR applicability and special provisions. Descriptions such as “industrial alcohol” or “alcohol-containing liquid” do not replace this review. For methanol, do not overlook the subsidiary toxic hazard 6.1 by focusing solely on flammability.
Separate the documents by their purpose
For a shipment without ADR exemptions, check the documents relating to the goods, driver and vehicle. They serve several different purposes.
- The transport document provides the ADR cargo description, quantity and details of the parties involved. An SDS alone does not replace it.
- ADR instructions in writing are for the vehicle crew and must be in a language they understand. They are a separate document, rather than a printout of the SDS.
- Check the driver’s ADR certificate for validity, classes and permitted mode of carriage. Tank transport requires the relevant training and certification.
- A vehicle approval certificate is required in the cases specified by ADR, including the relevant FL vehicles. It does not certify chemical product quality.
- A batch quality certificate or certificate of analysis confirms the agreed quality parameters. Compare it with the order specification.
Where a CMR consignment note is used, its cargo details should agree with the other documents. If ADR information is included in the CMR, check that the required entry is complete; having a consignment note alone is not enough. Our guide to checking and completing a CMR covers its individual fields.
Check the tank or packaging for the chosen carriage method
The phrase “L4BH stainless steel tanker” confuses two different things. L4BH is a tank code describing tank characteristics, not a steel grade. Check whether the tank is permitted for the cargo, its documents and inspection dates, and the compatibility of materials and fittings. A stated capacity of 30 m³ does not establish any of these points.
Drums and IBCs require different checks: the permitted packaging type, suitability for the packing group, chemical compatibility, condition and applicable inspections. An IBC is transport packaging, so tanker requirements cannot all be applied to it automatically. Check lids, gaskets and valves as well: these form part of the product containment system.
Agree filling arrangements and site operations
A blanket rule that “all alcohol tanks are filled to 90–95%” is unsuitable. Permitted filling is determined under the applicable ADR provisions for the specific tank and substance, considering product properties and loading conditions. The consignment mass must also be checked against the permitted vehicle mass and axle loads.
Before dispatch, establish the loading and unloading setup: which connections are used, who provides transfer equipment and who prepares the receiving line. For methanol, control of ignition sources and static electricity, and limiting personnel exposure, are material considerations. Trained workers carry out the operations under site procedures; the transfer method cannot be chosen simply because a spare pump is available.
Match the marking and labels to the actual cargo
Check that the hazards in the documents match the labels and markings on the packaging, container or vehicle. In the standard ADR regime, methanol requires attention to both class 3 and subsidiary hazard 6.1. Tanker marking differs from that of a vehicle carrying drums; a photograph from a previous trip is not a ready-made template.
Review marking again whenever the cargo composition or shipment format changes. Our article on dangerous goods marking and labelling explains the placement of markings and the differences between packaging and vehicle requirements. Eligibility for quantity-based exemptions must be assessed separately before using simplified arrangements.
Assess cleanliness separately from technical approval
A serviceable, approved tank must also meet the cleanliness requirements for its next product. Residues of previous cargoes and water matter for methanol. Agree with the consignor which previous products are acceptable and what evidence of preparation is needed.
The ECD records the cleaning operations performed. EFTCO defines it as a cleaning document rather than a certificate. Check the date, tank identification, recorded operations and compliance with the loading site’s requirements. An ECD does not establish the laboratory quality results of the forthcoming batch or replace the decision to accept the tank for loading.
A worked example of a methanol booking review
Consider an illustrative enquiry stating “methanol, 20 tonnes, 30 m³ tanker”. The attached SDS identifies UN 1230, class 3 and subsidiary hazard 6.1, but the draft transport document lists only class 3. A cleaning document is available, although the plant’s tank acceptance procedure has not been agreed.
Before confirming vehicle dispatch, correct the hazard description, verify tank suitability and whether the stated quantity can be loaded, obtain the plant’s cleanliness requirements and establish the discharge equipment needed. Tank capacity alone does not show that the consignment is ready to ship. This is an example of reviewing booking information, not a calculation of an allowable load.
Prepare one agreed set of shipment information
Give the parties one current set of details: the exact product and SDS, quantity, carriage method, packaging or tank details, both sites’ requirements and agreed documents. Where information conflicts, clarification should come from the responsible party and the corrected details should reach everyone preparing the shipment.
Once the information has been checked, the route, transport format and delivery arrangements can be agreed through our methanol transport service. This moves the process from checking requirements to organising a specific delivery.
