Overview
EN ISO 10750:2018 (identical to ISO 10750:2015) specifies a laboratory test method to determine the attachment strength of end stops (top and bottom stops) on slide fasteners used in footwear. The standard applies to all types of slide fasteners (zippers) for footwear and defines three test methods using a tensile testing machine to measure the force required to pull off end stops.
Key Topics and Requirements
- Scope: Measures attachment strength of both top and bottom stops on footwear slide fasteners.
- Test methods:
- Method 1 - Top stop attachment strength: Slider of a closed fastener is hooked and pulled away from the clamped fastener body.
- Method 2 - Bottom stop (slider‑stringer): Slider of an open fastener is hooked while the two free stringer ends are clamped.
- Method 3 - Bottom stop (stringer‑stringer): Each free stringer end is clamped in opposing jaws and pulled apart.
- Apparatus and performance:
- Tensile testing machine with jaw separation rate (100 ± 10) mm/min.
- Force measurement capability up to 1 kN, accuracy ±2% (Class 2 per ISO 7500‑1).
- Small hook attachment (wire diameter (1,6 ± 0,2) mm) for puller engagement where needed.
- Specimens and conditioning:
- Three fasteners per test.
- Condition specimens 24 h before testing per ISO 18454 (standard atmospheres).
- Procedure and output:
- Record the maximum force (Newtons) and failure mode (e.g., end stop pulled off, puller detached, puller broken).
- Calculate the arithmetic mean of the three maximum forces.
- Test report (minimum information):
- Reference to ISO 10750, sample description, date of testing, and which method (1, 2, or 3) was used.
Applications and Users
- Who uses it: Footwear manufacturers, component (fastener) suppliers, independent testing laboratories, quality assurance teams, product designers and R&D groups.
- Practical uses:
- Verifying end stop durability and attachment quality for safety and performance.
- Supplier quality control and incoming inspection of zippers/stringers.
- Supporting product specifications, warranty claims, and compliance documentation.
- Design optimization for fastening reliability in footwear applications.
Related Standards
- ISO 7500‑1 - Tensile testing machine force verification (referenced for force accuracy).
- ISO 18454 - Conditioning atmospheres for footwear testing (conditioning requirements).
- ISO 19952 - Terminology and related footwear fastening terms referenced by ISO 10750.
EN ISO 10750:2018 provides a clear, repeatable tensile test framework for assessing zipper end stop attachment strength-an essential metric for footwear durability and quality control.