Zipper strength
ASTM D2061 covers strength test methods for zippers. A toothless strip requires a considered method selection, fixture and applicability review; no automatic zipper-class equivalence is claimed.
ASTM D2061 record →Engineering / qualification planning
Match the evidence to the finished construction.
A test method, a material declaration and a finished-product approval answer different questions. Build a qualification plan around the actual garment or bag.
OEM components · matched A/B constructions · project-specific review
Qualification matrix
Ask for the specimen, method and result together.
The table below is a planning framework. It is not a list of MagZipStrip certificates or claimed test passes.
| Question | Relevant evaluation | Evidence to request |
|---|---|---|
| Will it stay closed? | Normal separation, lateral movement and peel opening on the real assembly | Geometry, fabric stack, fixture, direction, speed and observed failure mode. |
| Will it survive use? | Repeated opening, bending, enclosure and seam retention | Cycle method, inspection intervals and before/after condition. |
| Will it tolerate the care label? | The garment’s specified washing and drying procedure | Specimen identification, procedure, temperature, drying and dimensional/functional results. |
| Will it tolerate outdoor exposure? | Application-relevant moisture, temperature and corrosion assessment | Exposure conditions, duration, enclosure inspection and functional results. |
| Is the material acceptable for the market? | Applicable chemical and material requirements for the intended use | Sample-linked declarations or reports with scope, dates and issuing body. |
| Is the full bag water-resistant? | Finished-product leak or water exposure assessment | Whole-bag construction, exposure conditions and applicable rating/report scope. |
Method context
Reference standards carefully.
Garment care
ISO 6330 describes domestic washing and drying procedures for textile testing. Specify the selected process and cycles; citing a procedure is not evidence that a closure has passed it.
ISO 6330 record →Material reports
Check that a declaration or laboratory report matches the supplied material, colour, enclosure and intended use. Certification marks and report claims need traceable scope and validity.
Discuss your evidence requirements →Application safety
Contain the magnet. Consider the surroundings.
Magnet retention
Assess the enclosure, seam and cut ends against foreseeable damage and use. Children’s products need a dedicated review; magnetic elements must not become accessible through a failed seam.
CPSC identifies serious injury risk from magnet ingestion. Seek immediate medical attention if magnet ingestion is suspected.
CPSC magnet guidance →Implanted devices
Magnetic fields can affect certain implanted medical devices. Follow the device manufacturer’s instructions and involve the wearer’s healthcare professional in suitability decisions.
FDA’s consumer-electronics guidance explains the interference issue. It does not establish a safe distance or approval for this closure.
FDA magnet-interference context →Compasses & sensors
Evaluate the actual equipment, closure position, orientation and separation. A shielded drawing or a low field reading at one point cannot establish universal compatibility.
Where the equipment requirement excludes magnets, consider a nonmagnetic closure route.
Outdoor equipment guide →Procurement release
Keep approvals attached to a revision.
Use the same sample identifier on the drawing, test plan and report. Agree who approves the finished product, including labelling, market requirements and the final integration process.
Custom geometry and another supplier’s branded system are not interchangeable. No patent non-infringement or freedom-to-operate assurance is made by this website. Arrange a project- and market-specific review with qualified counsel where needed.
USPTO patent-management context →A sample release file should identify
- Drawing revision and paired A/B specimen.
- Material and enclosure/carrier construction.
- Test method, fixture, conditions and acceptance criteria.
- Actual results, observations and report scope.
- The buyer’s integration and finished-product approval.
Prepare your review
Download a working qualification brief.
Sample qualification plan
A blank worksheet for the specimen, conditions, result and approval.
Download .txtSafety review notes
Enclosure, intended user, magnetic surroundings and label-review questions.
Download .txtFactory integration checklist
Controlled stitching, pair orientation, cut ends and release records.
Download .txtTechnical content reviewed 19 October 2026. These original worksheets are planning tools, not laboratory certificates or pre-approved product labels.
Buyer questions
Questions before you start sampling
Will a sample box include a guaranteed certificate for every series?
Request the documents relevant to the selected sample and its intended market. The availability and scope of existing material declarations or test reports are confirmed for that project; no universal certificate pack is promised.
Does using a standard method mean the product is certified?
No. A test method describes a procedure. A report identifies a specimen, conditions and results. A certification claim requires its own valid scope and authorisation.
Can I use these notes as my retail warning label?
Use them to prepare questions for the responsible product team. Final warnings, care instructions and market requirements must match the finished product and its intended user; the download is not a pre-approved label.
R&D sample selection
Tell us the market and the test requirement.
Share the opening length, fabric stack and intended use. Discuss a paired sample selection before committing to a production specification.
Sample contents, availability and shipping are confirmed for your project.
