Placard with UN1789 number (hydrochloric acid), 10-3/4 in X 10-3/4 in, for the transportation of dangerous goods

UN1789 placard for hydrochloric acid, class 8, 10-3/4 in X 10-3/4 in

This item is not kept in stock. Please allow 5 days for delivery.

The UN1789 placard identifies a load of hydrochloric acid, a class 8 corrosive substance, on tank trucks and vehicles delivering pickling, technical cleaning and chemical treatment products. It shows the number 1789 in black in its white box, the corrosive symbol and the class number 8, on a white and black 10-3/4 X 10-3/4 in diamond that fits most placard holders. Made in Canada, it is sold individually.

Features of the pre-printed UN1789 placard

• UN1789 number pre-printed with the corrosive symbol and the class number 8: no digits to apply yourself.
• 10-3/4 X 10-3/4 in diamond, the standard size that fits most placard holders.
• High-contrast printing, legible from a distance.
• Three materials: low-cost cardboard, reusable rigid plastic or permanent self-adhesive vinyl.
• Designed, according to the manufacturer, for the Canadian TDG Regulations and the IMDG, IATA and ICAO codes: convenient for multimodal transport.

Available formats: cardboard, rigid plastic or self-adhesive vinyl

Aluminum placard available on request: contact customer service for a quote.

Hydrochloric acid in transport and storage: what to do in case of a spill

UN number 1789 corresponds to the shipping name HYDROCHLORIC ACID, class 8, packing group II or III depending on concentration. This aqueous solution of hydrogen chloride is used for metal pickling, technical cleaning and chemical processes. Transport Canada's 2024 Emergency Response Guidebook (ERG) places it under guide 157, for non-combustible, water-sensitive toxic or corrosive substances: contact causes burns, the vapours are corrosive to the respiratory tract, reaction with water releases heat and more vapours, and the acid in contact with metals can produce flammable hydrogen.

In case of a spill during transport or in your storage area, guide 157 calls for dialing 911, then the emergency number on the shipping document, and isolating at least 50 m around a liquid spill, increasing the protected area downwind as needed. Eliminate all ignition sources, ground the handling equipment, do not touch damaged containers or the spilled product without appropriate protective clothing and, if you can do it without risk, stop the leak. Keep water out of the containers and keep the acid out of waterways, sewers, basements and confined areas. For a small spill, cover with dry earth, dry sand or another non-combustible material, then with a plastic sheet to limit spreading and protect from rain; then collect with clean non-sparking tools into loosely covered plastic containers.

Keep a mineral absorbent (ABGMM225) in the vehicle and near the storage area to cover the liquid, a polyethylene sheet (SACCT2) to protect it from rain, as the guide calls for, and chemical socks (ABCB30) to contain the flow; check their compatibility with the safety data sheet.

Fire safety for hydrochloric acid: which extinguisher to keep in the vehicle and at the warehouse

Hydrochloric acid does not burn, but heat can break it down into corrosive and toxic gases and rupture containers. For a small fire, guide 157 names CO₂, dry chemical and dry sand: a CO₂ (EXCO10) unit or an ABC dry chemical (EXABC10) extinguisher is suitable. Place it in the vehicle cab and at an accessible spot near the storage area, outside the hazard zone. A large fire or a tank caught in flames is a job for firefighters: the guide then calls for isolating 800 m in all directions and considering an initial evacuation over the same distance.

These guidelines from the 2024 ERG help you prepare your transport and storage procedures. For the exact product and the real situation, the current safety data sheet and the ERG prevail; emergency measures are for trained and equipped personnel, with a positive pressure self-contained breathing apparatus (SCBA), as the guide specifies.

UN1789 placard applications

The UN1789 placard is intended for chemical distributors, surface treatment and pickling shops and carriers delivering the acid by tank or in containers. Cardboard is handy for a one-time load, rigid plastic is reused from one trip to the next, and self-adhesive vinyl stays in place on a tank dedicated to the acid.

Complete your display with an aluminum flip chart placard, with five (ECLAP5) legends including class 8, or fourteen (ECLAP14) legends, for trucks whose cargo changes; the class 8 corrosive placard (ECLA8); and the yellow and black warning tape (ECT751JN108) for surface marking to identify the storage area.

UN1789 placard technical specifications

Placard installation and care

Apply the self-adhesive vinyl to a clean, dry surface. Keep the placard clean so the number stays legible, and replace it if it is damaged, faded or illegible. For a placard exposed to the weather for a long time, choose rigid plastic or vinyl over cardboard.

FAQ: UN1789 placard and hydrochloric acid transport

Which material should I choose for the UN1789 placard: cardboard, plastic or vinyl?

Cardboard is the low-cost option for temporary use. Rigid plastic is weatherproof and reusable. Self-adhesive vinyl suits permanent application on a tank or trailer.

Why cover the acid with a plastic sheet after the absorbent?

Guide 157 calls for covering a small spill with dry earth or dry sand, then with a plastic sheet: the sheet limits spreading and protects the product from rain, since moisture increases the release of vapours.

What safety perimeter is needed for a spill of the acid?

Guide 157 of the 2024 ERG calls for isolating at least 50 m around a liquid spill and increasing the protected area downwind as needed. If a tank is on fire, isolate 800 m in all directions.

Which extinguisher should I keep in a vehicle carrying the acid?

For a small fire, a CO₂ extinguisher or an ABC or BC dry chemical extinguisher. A large fire is a job for firefighters: move away and dial 911.

Does the UN1789 placard fit in a placard holder?

Yes. Its 10-3/4 X 10-3/4 in format is the standard size that fits most placard holders.

Suggestions for transport and storage of hydrochloric acid

For the driver or handler who deals with the acid at loading, delivery or in the warehouse, plan for Centurion splash goggles (YG454), a 6000 series full face respirator (R6800) with acid gas cartridges (R60922), selected according to the SDS and the risk assessment, a hooded Tychem 2000 disposable coverall (VQC127SYL), 12 in Chemstop neoprene gloves (GNE3030), waterproof PVC steel toe boots (VC18821C) and a flame-resistant high-visibility vest (VV510FR) to stay visible on the road and at the loading station.

To contain and respond to a spill, keep on hand pads (ABCT100) for corrosive or hazardous chemicals, socks (ABCB30) for these chemicals, a large 55 US gallon hazmat spill kit (ABCE55), a 3 mil polyethylene sheet (SACCT2) to cover the product, a 10 lb CO₂ (EXCO10) extinguisher, a 10 lb ABC dry chemical (EXABC10) extinguisher and 28 in traffic cones (EPTCONE28B) to mark off the perimeter. Kit selection depends on the work situation and CNESST criteria; not every truck driver is automatically an isolated worker: the type 1 personal (TR01) first aid kit suits an isolated worker with no access to another kit, a vehicle with 1 to 5 workers, or a vehicle with more than 5 workers less than 30 minutes from medical services; for a vehicle with more than 5 workers more than 30 minutes from medical services, provide the type 2 basic (TR02M) first aid kit. Complete the truck's equipment with a portable road safety kit (TR16) and the set of three removable reflectors (EPTR) to signal a stopped vehicle.

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