Overview - EN ISO 7965-1:2024 (Packaging - Drop test - Part 1: Paper sacks)
EN ISO 7965-1:2024 / ISO 7965-1:2024 specifies a method for vertical impact testing of filled paper sacks by dropping. The standard is intended to assess how a paper sack responds to a vertical impact - either as a single investigation or as part of a sequence that simulates a distribution system including vertical impact hazards. It defines the test principle, required apparatus, sampling/conditioning, test procedures, methods for presenting results, and the content of the test report.
Key topics and technical requirements
- Scope: Tests apply specifically to filled paper sacks to evaluate resistance to vertical impacts during distribution.
- Principle: A filled sack is released from a predetermined height to strike a rigid, horizontal impact surface; drop height and package orientation are set in advance.
- Apparatus essentials (Clause 5):
- Means to set and ensure correct drop height
- Lifting arrangement that does not damage the sack
- Platform and release mechanism ensuring unobstructed fall
- Impact surface: horizontal, flat and rigid
- Sampling and conditioning:
- Sampling for average quality follows ISO 7023
- Paper sacks are conditioned for testing as described in ISO 6599-1 due to paper’s hygroscopic nature (Clause 7)
- Test procedures (Clause 8–9):
- Filling and placement rules before dropping
- Methods include progressive drop height and constant drop height
- Tests may be performed as flat or butt impacts (side constant-height test excluded for constant method)
- Reporting of sack breakage and other outcomes
- Test report: Clause 10 lists required information to present results consistently.
Applications and who uses this standard
- Packaging designers and material engineers validating paper sack strength and design.
- Quality control and testing laboratories conducting routine drop testing and supplier acceptance tests.
- Logistics, warehousing and distribution planners simulating handling impacts in supply chains.
- Manufacturers and purchasers specifying performance criteria for sacks in supplier contracts.
- Regulatory and compliance teams ensuring packaging meets recognized test methods.
Related standards
This standard helps ensure consistent, repeatable drop test results for paper sacks, supporting risk reduction in handling and distribution and enabling clear technical specifications for packaging performance.
