[Packaging ] Transportation Standards / ISO 7000
- Kriss Nakhon
- Sep 18
- 12 min read
Framework for packaging relevant standards from each category:
Start with Box Strength: Choose an ECT or Mullen rating that matches your product's weight and fragility.
Design the Interior: Apply cushioning rules (2-inch rule) based on the product's G-factor and use blocking/bracing for irregular shapes.
Plan for Palletization: Decide on a stacking pattern (interlock for stability, column for heavy uniform items) and unitization method (stretch wrap for most, strapping for heaviest).
Communicate: Clearly label the outer package with standardized symbols to ensure proper handling.
By following these standards, companies can systematically reduce damage, minimize losses, and ensure their products arrive in perfect condition.
Master Matrix of Packaging & Transportation Standards
This matrix breaks down the critical standards into categories, with clear examples and explanations for each.
Category | Standard / Concept | Example & Explanation | Purpose |
Box Strength | Edge Crush Test (ECT) | Example: A box rated 44 ECT can hold over 60 lbs in a stack, while a 32 ECT box is suitable for loads under 50 lbs. Using a 32 ECT box for a heavy load risks bottom-box collapse. | To ensure the box has enough vertical strength to support the weight of other boxes stacked on top of it during transport and storage. |
Box Strength | Mullen Test (Bursting Strength) | Example: A 200# Test box can resist 200 lbs of pressure per square inch before puncturing. This is crucial for protecting against impacts and rough handling, unlike ECT which is for stacking. | To measure the box's ability to resist external punctures and abrasions during handling and transit. |
Stacking Pattern | Interlocking Pattern | Example: Stacking boxes like bricks in a wall, where the seams of one layer do not align with the seams of the layer below it. This distributes weight evenly and increases overall pallet stability. | To distribute weight evenly across the entire pallet load, preventing tipping and minimizing the risk of crushing any single box. |
Stacking Pattern | Column Stacking | Example: Stacking identical, heavy, and robust boxes (e.g., canned goods) directly on top of each other. The weight is transferred straight down through the strongest part of each box. | To safely transport very heavy, uniform items by channeling weight directly through their primary support structures. |
Unitization | Stretch Wrapping | Example: Wrapping a loaded pallet 30-40 times with plastic stretch film, ensuring the top layer is fully covered to prevent boxes from "walking" out during transit. | To bind all items on a pallet together into a single, stable unit that cannot shift easily. |
Unitization | Strapping / Banding | Example: Using nylon or steel straps around a pallet of very heavy building materials. The straps are tensioned to secure the load and are often combined with corner boards to protect the boxes. | To provide extreme compression and security for heavy, dense, or unstable loads that could break through stretch film. |
Cushioning & Void Fill | Material Selection (G-factor) | Example: A fragile item like a hard drive (low G-factor) needs high-performance foam. A plastic toy (higher G-factor) may only need air pillows or crumpled paper to fill empty space. | To choose the right material to absorb the specific shocks and vibrations expected during transit based on the product's fragility. |
Cushioning & Void Fill | The 2-Inch Rule | Example: An item inside a box should have at least 2 inches (5 cm) of cushioning material on all sides. This ensures there is enough material to absorb energy from a drop or impact. | To provide sufficient space for cushioning materials to compress and absorb energy, preventing the product from hitting the inside of the box. |
Internal Protection | Blocking & Bracing | Example: Placing a large server inside a wooden crate with custom-cut wooden beams nailed to the crate's structure to prevent the server from moving in any direction. | To immobilize heavy or irregularly shaped items inside their packaging, preventing movement that causes damage from impacts. |
Internal Protection | Edge & Corner Protection | Example: Applying rigid cardboard corner protectors to a piece of furniture or a large painting before boxing it. This protects the most vulnerable points from direct impact. | To shield the most susceptible parts of a product (edges and corners) from direct blows and crushing forces. |
Hazard & Handling | ISO 7000 Pictograms | Example: "Fragile" (wine glass), "This Side Up" (up arrow), "Keep Dry" (umbrella). These internationally recognized symbols communicate handling instructions without language barriers. | To visually communicate critical handling instructions to warehouse staff and carriers across global supply chains. |
Environmental | International Standards (ISPM 15) | Example: All wooden pallets and crates used for international shipping must be heat-treated or fumigated and marked with the IPPC logo. This prevents the global spread of pests and insects in wood packaging. | To protect global ecosystems from invasive species that can travel in raw wood packaging materials. |
Packaging Type Matrix: Critical Points & Environmental Impact
Packaging Type | Primary Function & Critical Points for Damage Prevention | Environmental Damage & Considerations |
Corrugated Cardboard | Function: The workhorse of shipping; provides structure, stacking strength, and minor cushioning. Critical Points: • ECT Rating: Must be chosen to support the full stacked weight. A low ECT leads to collapse. • Proper Sizing: Under-sized boxes burst; over-sized boxes allow product movement. • Sealing: High-quality tape is needed to prevent boxes from opening during handling. | Impact: High volume of waste, energy and water intensive production from virgin pulp. Mitigation: • High Recycled Content: Using post-consumer waste reduces forestry impact. • Recyclability: Highly recyclable and biodegradable. • Source Reduction: "Right-sizing" boxes to eliminate empty space saves material. |
Expanded Polystyrene (EPS) - "Styrofoam" | Function: Excellent shock absorption and thermal insulation. Critical Points: • Correct Density: Must be specified to absorb the specific G-forces expected. • Complete Encasement: Foam should fully suspend the product, preventing contact with the outer box. | Impact: • Non-Biodegradable: Persists in landfills and environment for centuries. • Litter & Microplastics: Breaks down into harmful small pieces. • Low Recyclability: Rarely recycled due to low density and economic feasibility. |
Biodegradable/Compostable Foam (e.g., cornstarch) | Function: Direct replacement for EPS foam; provides similar cushioning and protection. Critical Points: • Moisture Sensitivity: Can lose integrity or degrade if exposed to humidity during transit. • Strength Variance: May have different performance characteristics than traditional EPS. | Impact: • Renewable Source: Made from plants, not petroleum. • End-of-Life: Will break down in industrial composting facilities. • **Greenhouse Gases: Can release methane if composted anaerobically (in a landfill). |
Plastic Stretch Film | Function: Unitizes pallet loads; prevents individual boxes from shifting or falling. Critical Points: • Load Containment Force: Must be wrapped with enough tension to create a stable, single unit. • Coverage: Must cover enough of the load to prevent boxes from "walking" out the top or bottom. | Impact: • Plastic Waste: Single-use plastic that is notoriously difficult to recycle. • Landfill Contribution: A major component of landfill waste. Mitigation: • Pre-Stretched Film: Uses less material to achieve the same hold. • Recyclable Films: Some newer films are designed to be recycled with grocery bags. |
Paper-Based Cushioning (Kraft paper, honeycomb) | Function: Void fill, surface protection, and shock absorption. Critical Points: • Amount Needed: Often requires more material than plastic alternatives to achieve the same level of protection. • Dust: Can create paper dust that is unsuitable for clean environments (e.g., electronics). | Impact: • Renewable & Recyclable: Made from a renewable resource and is widely recyclable and biodegradable. Consideration: • Sourcing: Can still contribute to deforestation if not made from recycled or sustainably sourced content. |
Air Pillows (Plastic) | Function: Void fill to prevent product movement inside a box. Critical Points: • Puncture Risk: Can deflate if sharp objects are not properly padded first. • Under-Inflation: Doesn't provide adequate blocking if not filled properly. | Impact: • Plastic Waste: Made from plastic films (often LDPE). Mitigation: • **Recyclable: Often made from #4 plastic, which can be recycled at store drop-offs. • Efficient Shipping: They are light and compact pre-inflation, reducing transportation emissions. |
Molded Pulp (e.g., egg cartons) | Function: Excellent structural cradling for specific, fragile items. Critical Points: • Precise Molding: Must be designed to hold the product snugly to prevent vibration and shock. • Strength When Wet: Can lose structural integrity if exposed to moisture. | Impact: • Excellent Profile: Typically made from recycled paperboard and is itself recyclable, compostable, and biodegradable. Considered a best-in-class sustainable option. |
Wooden Crates/Pallets | Function: Maximum protection for heavy, high-value, or industrial goods. Critical Points: • Structural Integrity: Nails and wood strength must be rated for the load. • Internal Bracing: Requires skilled design to include proper blocking and bracing. | Impact: • Durability & Reusability: Can be reused dozens of times and repaired. • **Resource Use: Requires timber. Mitigation: • **ISPM 15 Standard: Treats wood to prevent invasive pest transfer, an important environmental protection. • **Recycling: Old pallets are widely recycled into mulch or new pallets. |
Often codified in formal regulations (like those from the IATA, IMO, or national bodies) and best practices from organizations like the International Safe Transit Association (ISTA). Here are concrete examples that illustrate these crucial aspects.
1. Stacking (Load-Bearing and Stability)
The goal is to prevent collapse, which damages not only your goods but also others in the shipment.
Example: Corrugated Box Strength (ECT vs. Mullen Test)
Standard: Boxes are rated by their Edge Crush Test (ECT) value, which directly indicates how much weight they can withstand in a stack. A box with a 44 ECT can hold significantly more stacked weight than a 32 ECT box.
Application: A shipper will calculate the total weight of the stack (number of boxes x weight per box) and choose a box with an ECT rating that exceeds that total load. This prevents the bottom boxes from collapsing.
Example: Interlocking Stacking Pattern
Standard: Boxes should be stacked in an interlocking pattern (like bricks in a wall), not aligned directly on top of each other.
Application: When stacking identical boxes on a pallet, each layer is rotated 90 degrees. This distributes weight evenly across the walls of the boxes below and dramatically increases the stability of the entire pallet, preventing it from tipping during sudden stops or turns.
Example: Column Stacking for Heavy Items
Standard: Extremely heavy items (e.g., engine blocks, bags of concrete) must be stacked in a vertical column, with each item directly supporting the one above it.
Application: Placing a heavy item on the side wall of a lower box (instead of its top panel) will cause the lower box to fail. The weight must be transferred directly through the strongest structural elements.
2. Preventing Breakage (Cushioning and Restraint)
The goal is to absorb shocks and vibrations and prevent items from moving inside their packaging.
Example: Cushioning Material Selection
Standard: Using the right type and amount of cushioning material based on the fragility of the item (its "G-factor" – how many Gs of impact it can withstand) and the expected drop height during handling.
Application: A fragile electronic device like a hard drive (low G-factor) is suspended in molded expanded polystyrene (EPS) foam inside its box. A less fragile item, like a plastic toy, might only require a few sheets of crumpled kraft paper or air pillows to fill void space and prevent scratching.
Example: Unitization and Palletization
Standard: Individual boxes are consolidated onto a single pallet and secured as one unit.
Application: Boxes are stacked on a pallet and then wrapped tightly with stretch film (plastic wrap). For heavy or unstable loads, strapping (nylon or steel) or banding is used. This prevents individual boxes from shifting or falling off the pallet, which is a major cause of damage.
Example: Internal Blocking and Bracing
Standard: For large, heavy, or irregularly shaped items, internal structures are created to prevent movement.
Application: A large piece of industrial equipment is crated in a wooden box. Wooden dunnage (blocks and beams) is cut and nailed inside the crate to frame the equipment, holding it perfectly in place and preventing any shifting during transit. Void space is filled with foam or other cushioning.
3. Protective Packaging
This is the first line of defense for the product itself.
Example: Moisture and Vapor Barriers
Standard: For goods sensitive to humidity (e.g., pharmaceuticals, certain chemicals, metal parts), packaging must include a barrier.
Application: Using sealed plastic desiccant bags inside the package or shipping the product in a foil-lined bag to protect it from environmental conditions during transit.
Example: Edge and Corner Protection
Standard: Protecting the most vulnerable parts of an item.
Application: Applying cardboard or plastic edge protectors to furniture or flat-packed items. For rectangular items, using angled brackets or corner posts made of molded foam or plastic within the box.
Putting It All Together: A Real-World Scenario
Product: Glass jars of pasta sauce.
Primary Packaging: Each jar has a shrink-wrap sleeve (label) and a vented safety seal under the lid to handle pressure changes.
Internal Cushioning: Jars are placed into molded pulp fiber trays (like egg cartons). This separates each jar and holds it firmly, preventing glass-on-glass contact.
Secondary Packaging: The filled trays are placed into a corrugated cardboard box with a high ECT rating (e.g., 44 ECT) to handle the heavy weight of the glass.
Unitization: Boxes are stacked on a pallet in an interlocking pattern. The stack height is calculated to not exceed the load-bearing capacity of the bottom box.
Restraint: The entire pallet is tightly wrapped with stretch film and then strapped to the pallet for stability.
Labeling: The master cartons and pallet are clearly labeled with "Fragile," "This Side Up," and "Glass" icons to inform handlers.
By following these layered, standardized practices, the shipper ensures the pasta sauce arrives at the store safely, reducing financial losses and maintaining customer satisfaction.
Sustainable & Safe Packaging:
The Hierarchy of Sustainability: The most effective strategy is to Reduce material use first, then Reuse packaging where possible, then Recycle, and finally dispose responsibly.
Lifecycle Assessment: The "greenest" option isn't always obvious. A lightweight, unrecyclable plastic that prevents massive product damage (and thus waste) might have a lower total environmental cost than a recyclable option that fails in its protective duty.
System Approach: The best results come from designing a system that uses the right material, in the right amount, for the right job. Combining a recycled cardboard box with paper void fill and a compostable foam wrap is often the ideal solution for balancing protection and planetary health.
Common standardized handling pictograms used in logistics and transportation, based on the ISO 7000 standard.
These symbols are designed to be universally understood, regardless of language, to ensure packages are handled correctly and safely.
1. Fragile Handle with Care
This is the most common symbol, indicating that the contents are fragile and can be easily broken. It requires careful handling.https://upload.wikimedia.org/wikipedia/commons/thumb/0/0c/Fragile_handle_with_care.svg/320px-Fragile_handle_with_care.svg.png
2. This Way Up
This symbol must appear on two opposite sides of the package. It indicates the correct vertical orientation to prevent items from being tipped or inverted.https://upload.wikimedia.org/wikipedia/commons/thumb/5/5d/This_way_up_black.svg/320px-This_way_up_black.svg.png
3. Keep Dry / Protect from Water
The umbrella symbol signifies that the contents are sensitive to moisture or water and must be kept dry.https://upload.wikimedia.org/wikipedia/commons/thumb/5/5a/Keep_dry.svg/320px-Keep_dry.svg.png
4. Center of Gravity
This mark identifies the package's center of gravity, which is crucial for the stable handling and lifting of heavy or unbalanced items.https://upload.wikimedia.org/wikipedia/commons/thumb/9/9a/Center_of_gravity.svg/320px-Center_of_gravity.svg.png
5. Use No Hooks
This pictogram warns handlers not to use hooks, as they can puncture or damage the package and its contents.https://upload.wikimedia.org/wikipedia/commons/thumb/6/6e/Do_not_use_hooks.svg/320px-Do_not_use_hooks.svg.png
6. Clamp Here
This indicates the correct and safe position where mechanical clamps can be used to lift or move the package.https://upload.wikimedia.org/wikipedia/commons/thumb/9/9f/Clamp_truck_here.svg/320px-Clamp_truck_here.svg.png
7. Sling Here
This shows the appropriate location for placing slings or ropes when lifting the package, typically with a crane or hoist.https://upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Sling_here.svg/320px-Sling_here.svg.png
8. Temperature-Sensitive Limit
This symbol indicates that the contents must be kept within a specific temperature range (which is usually written next to the symbol).https://upload.wikimedia.org/wikipedia/commons/thumb/4/47/Temperature_limit.svg/320px-Temperature_limit.svg.png
9. Protect from Radiant Heat
This warns handlers to keep the package away from direct sunlight or other sources of heat to prevent damage.https://upload.wikimedia.org/wikipedia/commons/thumb/2/2c/Protect_from_radiant_heat.svg/320px-Protect_from_radiant_heat.svg.png
10. Stacking Limit
This indicates the maximum number of identical packages that can be safely stacked on top of each other (e.g., "2" means a maximum stack of two high).https://i.imgur.com/6U1kKpN.png
11. Do Not Stack
A clear instruction that nothing should be placed on top of this package.https://upload.wikimedia.org/wikipedia/commons/thumb/6/6c/Do_not_stack.svg/320px-Do_not_stack.svg.png
How to Use These Pictograms:
Visibility: They must be printed clearly and prominently on the external packaging.
Placement: Place them on multiple sides (at least two) so they are visible from different angles.
Color: They are typically black on a white or contrasting background. Important symbols may use red or yellow to attract attention.
Size: They must be large enough to be easily seen and understood.
Using these symbols correctly is a critical part of international shipping standards and greatly reduces the risk of damage during transit.
Abbreviations & Standards Glossary
Abbreviation | Stands For | Definition & Purpose |
ECT | Edge Crush Test | A measure of the vertical stacking strength of corrugated cardboard. It indicates how much weight a box can withstand before crushing. Higher ECT = Greater Stacking Strength. |
Mullen | Mullen Burst Test | A measure of the puncture and burst resistance of corrugated cardboard. It indicates the pressure (in pounds per square inch) the box can withstand. Higher # = Greater Durability. |
G-factor | Fragility Factor | A value (expressed in Gs) that represents a product's ability to withstand shock and impact. A low G-factor (e.g., 25-50G) means very fragile; a high G-factor (e.g., 100G+) means durable. |
EPS | Expanded Polystyrene | A rigid, plastic foam material (commonly called "Styrofoam," a trademarked brand) used for excellent shock absorption and insulation in packaging. |
ISTA | International Safe Transit Association | A non-profit organization that creates pre-shipment testing protocols (e.g., ISTA 3A) to simulate transport hazards and ensure packaging will protect products. |
IATA | International Air Transport Association | The global trade association for airlines. It sets standards and regulations for the safe and secure transportation of goods, especially dangerous goods, by air. |
IMO | International Maritime Organization | A United Nations agency responsible for the safety and security of shipping and the prevention of marine pollution by ships. Sets standards for sea freight. |
ISPM 15 | International Standards for Phytosanitary Measures No. 15 | A regulation governing the treatment of wood packaging material (pallets, crates, dunnage) used in international trade to prevent the spread of pests and insects. |
IPPC | International Plant Protection Convention | The international treaty that provides the framework for the ISPM 15 standard. The IPPC logo on a wood pallet certifies it has been treated according to ISPM 15. |
LDPE | Low-Density Polyethylene | A type of plastic resin (Recycling #4) commonly used to make flexible packaging films, like air pillows and bubble wrap. |
Dunnage | (Not an acronym) | Any material (e.g., foam blocks, inflatable bags, wood braces) used to block, brace, and secure a load inside a shipping container or truck to prevent movement and damage. |
Pictogram | (Not an acronym) | A standardized symbol (like a fragile wine glass or an umbrella for "Keep Dry") used to communicate handling instructions without language barriers. Governed by ISO 7000. |
ISO | International Organization for Standardization | An independent, non-governmental international organization that develops and publishes voluntary consensus-based standards (like ISO 7000 for symbols) for almost every industry. |
Reference Guide:
For Box Strength: Look for ECT (stacking) or Mullen (puncture).
For Product Fragility: Understand the product's G-factor.
For Testing: Follow ISTA procedures.
For Transport Rules: Follow IATA (air) or IMO (sea).
For Wood Packaging: Ensure it has the IPPC mark for ISPM 15 compliance.
For Plastic Type: LDPE is common for cushioning.
For Communication: Use standardized Pictograms.
_edited.jpg)
Comments