Quick answer: Begin with sample identity, then read the test method, conditions, results and stated decision criteria. Different ESD properties need different evidence. A resistance result alone does not establish low charging or discharge shielding, and a report for another construction does not qualify your order.
Match the sample to the enquiry
Identify the report number, issuing organization, tested sample and sample reference. Compare the sample description with the proposed material, layer construction, size, closure and manufacturing revision where available. Ask for clarification when a report describes only film but the order is a finished bag.
Save the complete document, not just a cropped results table. Record who supplied it and what connection is claimed to the quotation. A report date is useful context, but applicability to the current construction also needs review. Do not infer a universal expiry period without a defined requirement.
Separate the properties being evaluated
ESD Association guidance distinguishes low charging, conductive or dissipative behavior, and discharge shielding. It also notes that resistance does not necessarily predict low charging. Review each required function rather than treating an ESD label as a single test result.
Map the report sections to your intended use. A moisture-barrier requirement belongs in a separate review from the electrical properties. Neither a metallic appearance nor a moisture-related result substitutes for the ESD evidence the buyer requires.
Read method and conditions before the conclusion
Check the cited method and version, specimen preparation, conditioning, environment and measurement setup described in the report. Ask which surface or part of the package was evaluated. Note missing information rather than filling it from a product brochure.
Keep units and measured properties attached to each result. A number detached from its method and sample is difficult to apply. Ask the responsible technical reviewer to compare the results with the acceptance criteria defined by the buyer’s ESD program; this guide does not prescribe universal numeric limits.
Understand the boundaries of a pass statement
Read what the report actually concludes and which criteria support that conclusion. If only one property was measured, do not extend the conclusion to other properties or an entire shipment system. Laboratory testing and routine production controls also answer different questions.
Ask how the supplier controls changes between the tested construction and the proposed order. Record unresolved changes in film, converting or closure. A purchasing release should identify the applicable evidence and any conditions still requiring technical approval.
Create a report review record
- Report reference, issuer and full-document location.
- Tested sample and match to the proposed construction.
- Required ESD properties and relevant methods.
- Conditions, units and result references.
- Buyer-defined acceptance criteria and reviewer.
- Gaps, construction changes and supplier clarifications.
- Order specification and release decision.
Use this record to request missing information without rewriting a laboratory conclusion. No client report, test result or product qualification is represented by the blank-paper illustrations in this guide.
Frequently Asked Questions
Does surface resistance alone prove a shielding bag?
No. Review the evidence for each required ESD property, including applicable discharge-shielding evidence.
Can a film report approve every finished bag size and closure?
Do not assume that. Ask the reviewer and supplier how the tested sample applies to the proposed finished construction.
Who should set the pass criteria?
Use the buyer’s applicable ESD control requirements and qualified technical review, with the relevant methods and conditions.
Related Products and Guides
Read next: Anti-Static Bags vs Static Shielding Bags: How to Choose.
Read next: Moisture Barrier Bags vs Shielding Bags: What to Specify.
Read next: Static Shielding Bag Closures and Usable Dimensions.
Discuss Your Packaging Specification
Sources
Published by New Solution. This guide supports preparation of a purchasing brief. Product claims and suitability are confirmed against the selected order specification and supporting documents.
Illustrations show generic packaging concepts, not verified product specifications.