The Benefits of Shipping with an Ultra Freeze Pack

Lives depend on the secure and safe transport of pharmaceuticals, vaccines, organs, blood, plasma, and tissue. These life-saving items are sensitive to temperatures and need to be shipped in a temperature-controlled environment always. This setting is often referred to as the “cold chain.” Continue reading…

UN1845 – How Our Dry Ice Labels Comply

Companies that ship dangerous goods must comply with labeling and package preparation requirements before transporting. It’s easy to get confused about the exact label requirements and whether your packaging meets them. You don’t want to get caught using dry ice or other hazardous substances without the proper labels.

Using substandard packaging runs the risk of contravening International Air Transport Association Dangerous Goods Regulations (IATA DGR). In addition to presenting a significant health and safety risk, the use of inappropriately labeled packaging could put the reputation of your business at risk.

At Air Sea Containers, you can be sure that your label will make it to the final destination intact when you choose our high-quality labels made from pressure-sensitive, heavyweight coated paper for maximum durability. Available in rolls of 500, these sturdy label rolls are printed with fade-resistant UV inks and will withstand the many rigors of shipping.

white smoke glass effect dry ice

What Is UN1845 and How Does It Apply?

Each substance that has been designated as dangerous by the IATA has been assigned a unique identifying number. UN1845 is the numeric identifier for dry ice assigned by the United Nations (UN) and the UN Committee of Experts on the Transport of Dangerous Goods.

Dry ice is the common name used to describe compressed solid carbon dioxide. It’s used as a refrigerant for goods that need to be kept cool during transport.

It’s much colder than water ice, coming in about -110oF, and has the added benefit of not leaving a residue. This extreme cold makes it dangerous to handle without protection.

two blocks dry ice

Five Requirements for Labels

The UN1845 numeric identifier implies specifications for packaging and package labeling that must be met to transport packages containing dry ice safely. Labels must include five essential requirements:

UN 1845

The package must be labeled with the identifying number “UN 1845.” The letters “UN” must be included; listing only “1845” is unacceptable. All of our dry ice packaging and package labels meet this requirement.

Dry Ice

The label must clearly state either “Dry Ice” or “Carbon Dioxide Solid.” Either or both of these identifiers are acceptable. On packages of sufficient size for it to be possible, this label must be on the same side of the package as the Class 9 Hazardous Material label.

Class 9 Hazmat

The third requirement of labeling dry ice for transportation is a class 9 hazmat label. This label identifies dry ice as a “Miscellaneous Dangerous Good,” and appears as depicted in the following photograph. All packages containing dry ice that we send out are affixed with this label, as well as the pre-prepared dry ice packaging that we sell to other vendors.

Net quantity

Any package containing dry ice must also be labeled with the net quantity of dry ice contained in the package or overpack, expressed in kilograms. For instance, a package containing 11 pounds of dry ice should properly be labeled “5 kilograms” or simply “5 kg.” Air Sea Containers’ labels are compliant, with an easily identifiable space for the final weight in kilograms to be added.

Names and Addresses

The package must be clearly labeled with the name and address of both the shipper and receiver of the package. It is important that this label be completed using a durable ink, to prevent this requirement from washing away during transportation. Our labels are explicitly printed to avoid blurring or obscuring of the pre-printed portions during transportation.

We are proud to state that our packaging is sustainable, recyclable and environmentally friendly. All our packaging and labels are made in the USA.

We guarantee offering the lowest price, and almost all our products including packaging and labels, while shipping boxes for sale come with a price-matching offer.

warning sign green cargo container

IATA Compliant Packaging

At Air Sea Containers, we are proud to offer labeling that is in exact compliance with IATA Transportation of Dangerous Goods regulations and their requirements. We are a platinum IATA distributor, with more than 25 years of experience and expertise in the hazardous materials packaging industry.

By satisfying the criteria listed under the IATA dangerous goods regulations, the risk of avoidable safety events is greatly reduced.

We guarantee all packaging for dry ice that we provide comes appropriately labeled to meet these regulations and to enhance safety in transportation. Our record for IATA compliance is immaculate. We also offer a wide range of other hazardous materials’ packaging solutions to fit your needs and offer worldwide and same-day shipping on almost all orders.

Breaking Down Last Mile Logistics

breaking down last mile logistics

Last mile logistics has risen to the forefront of many industries with the ascendance of online shopping. Enterprises involved in transportation, supply chain management, and e-commerce are increasingly aware of the importance of the final stage of product fulfillment. Continue reading…

Who Invented the Corrugated Box?

An accidental invention, corrugated boxes were initially devised in the late 1800s by Scottish immigrant, Robert Gair. A mistake by an operator who cut, instead of creased, seed bags in Gair’s existing Brooklyn printing and paper-bag company, led to Gair’s creation and development of pleated, creased, and cut cardboard folding boxes. Continue reading…

From Tarantulas to Treasures: The Strangest Things Found in Cargo Boxes

The expansion of our trading systems throughout history has allowed us to receive information and produce from countries all over the world, expanding both our diets and our knowledge of the world around us. Packages often travel tens of thousands of miles to reach their destination, and shipping containers and cargo boxes can contain anything from food and spices to clothing to electronics. Continue reading…

Preparing Your Gaylord Box for Cold-Weather Travel

Rain, hail, or shine, you want your customers’ goods to arrive on time. Unfortunately, the weather can often have other ideas. Cold weather and other itinerant weather conditions can severely impact the efficiency of your shipping. Whether ships and trucks need to be rerouted or packaging becomes damaged during transit, the integrity of your products can be compromised if proper care is not taken to protect your items. Continue reading…

Should I Purchase Cargo Insurance When Shipping Freight Internationally?


When shipping internationally, the freight moves through many more hands than it does when shipped nationally. The longer the trip, the greater the risk of damage. That’s why you may want to consider shipping insurance when shipping freight internationally.

Insurance is not mandatory, but damaged products can cause unexpected costs for individuals shipping packages. International carriers are held responsible for packages damaged in their care, with certain restrictions, yet the damage done to some packages has unknown origins. Continue reading…