Which Aerosol Packaging Category is composed of approved thermoplastic materials, such as PET, PEN, nylon, or a blend, with a maximum capacity not exceeding 500 mL?

• A. IP7
• B. IP7A
• C. IP7B
• D. IP7C

Answer: (D)

Understanding aerosol packaging categories rests on the material used and the size limit. The IP7 family defines several container types with specific capacity rules, and the IP7C category is the one that specifies approved thermoplastic materials—such as PET, PEN, nylon, or blends—and caps the capacity at 500 mL or less. This combination of material specification and size limit makes IP7C the correct choice for plastic aerosol packaging up to 500 mL. The other IP7 subcategories apply to different materials or larger capacities, so they do not meet both criteria.