Shipping papers follow a specific sequence. Which option correctly describes the ISHP sequence?

Shipping papers follow a specific sequence. Which option correctly describes the ISHP sequence?

• A. S I H P sequence: S= shipping name / I= ID number / H= hazard class / P= packing group
• B. I S P H sequence: I= ID number / S= proper shipping name / P= packing group / H= hazard class
• C. S I P H sequence: S= shipping name / I= ID number / P= packing group / H= hazard class
• D. ISHP sequence: I= ID number / S= proper shipping name / H= hazard class or division / P= packing group

Answer: (D)

The information on shipping papers is arranged in a standard order so responders can quickly identify the material and its hazards. The ISHP sequence starts with the identification number (the UN/ID number), because that uniquely identifies the substance regardless of its name in different contexts. Next is the proper shipping name, providing a readable label for what the material is. After that comes the hazard class or division, which communicates the main type of hazard (for example, flammable, toxic, corrosive). Finally, the packing group is shown, indicating how severely dangerous the material is to be packaged and handled. This ordering keeps the most critical identifiers in a consistent, predictable position, enabling fast recognition and appropriate action. Other sequences mix or reorder these elements in ways that would hinder quick hazard assessment, making the ISHP order the best fit.

The information on shipping papers is arranged in a standard order so responders can quickly identify the material and its hazards. The ISHP sequence starts with the identification number (the UN/ID number), because that uniquely identifies the substance regardless of its name in different contexts. Next is the proper shipping name, providing a readable label for what the material is. After that comes the hazard class or division, which communicates the main type of hazard (for example, flammable, toxic, corrosive). Finally, the packing group is shown, indicating how severely dangerous the material is to be packaged and handled.

This ordering keeps the most critical identifiers in a consistent, predictable position, enabling fast recognition and appropriate action. Other sequences mix or reorder these elements in ways that would hinder quick hazard assessment, making the ISHP order the best fit.