"Short answer: our factory holds BRCGS Packaging Materials (Issue 7, Grade B, audited by TÜV SÜD), an SGS test report against FDA 21 CFR 177.1520, EU food-contact testing to (EC) 1935/2004 and (EU) No 10/2011, and a Sedex SMETA 4-pillar audit by Intertek. The limit that matters: no factory certificate covers a market-specific product rule — child resistance and your own label sign-off stay with the brand. Below is every document, what it really covers, and how to ask for the PDF."
One factory, one set of documents. Sainsun Mylar Bags is the custom pouch division of Shenzhen Sainsun Packaging Co., Ltd., so the certificates below are issued to the legal entity that makes your bags — not to a trading company that buys them in.
| Document | Issued or tested by | What it covers | Status |
|---|---|---|---|
| BRCGS Packaging Materials, Issue 7, Grade B | TÜV SÜD | Hygiene, traceability and quality management in how packaging is made | Valid to Jul 2027 |
| FDA 21 CFR 177.1520 test report (retort pouches) | SGS | Olefin polymer materials — the polyolefin sealing layer inside a pouch | Tested Jan 2025 — passed |
| EU food-contact test report | Third-party laboratory | (EC) 1935/2004 framework and (EU) No 10/2011 migration limits | Passed |
| Sedex SMETA 4-pillar audit | Intertek | Labour · Health & safety · Environment · Business ethics | 2026 audit · Sedex registered |
| ISO 9001 quality management | — | The management system the above sit inside | Maintained |
| BPA-free reports | — | Bisphenol A status of the film supplied | Available on request |
| German LUCID packaging register | — | Registration under the German Packaging Act (VerpackG) | Registered |
Also maintained: FDA 21 CFR 177 compliance and (EC) 1935/2004 & (EU) 2020/1245 compliance. Full reports are available on request — see how to ask at the bottom of this page.
Certificates get waved around in packaging quotes without anyone saying what they cover. Here is the plain reading of each.
This is a factory certificate, not a product certificate. It audits how packaging is made: hygiene of the production environment, hazard analysis, traceability of the film and ink that went into a run, and whether the quality system is actually followed. It is re-audited on a fixed cycle, and the grading scale runs from AA down to D — Grade B is a passing grade, not the top one, and we say so rather than leaving you to guess.
What it does not do is certify your finished pack for a specific market. It says the factory that made it works to a recognised hygiene standard.
21 CFR 177.1520 covers olefin polymers — the polypropylene and polyethylene resins that form the inner sealing layer of a pouch. The report was issued by SGS against retort pouch structures, which is the hardest case: retort means the pack is heated to sterilise the contents, so the film has to hold up under heat as well as contact.
What it does not do is certify your finished printed pouch with your product in it. If your market or your own QA wants migration testing on the finished pack, that is a separate test and we say so up front.
1935/2004 is the EU framework rule — materials must not transfer anything to food in quantities that could harm health or change the food. 10/2011 is the implementing rule for plastics: it sets an overall migration limit of 10 mg per dm² of contact surface, plus specific migration limits for listed substances, tested against food simulants. Our report was run by a third-party laboratory and passed.
(EU) 2020/1245 tightened and corrected parts of 10/2011, and our documentation tracks that version.
SMETA is the ethical-trade audit format, and "4-pillar" means all four pillars were in scope: labour, health and safety, environment, and business ethics. Buyers selling into UK and EU retail are usually asked for this by their own customer, not by the regulator — it is what lets them tick their own supplier-approval box. We are Sedex registered, so the audit can be pulled by a member rather than emailed as a PDF that may be out of date.
ISO 9001 is the quality management system underneath everything above. BPA-free reports cover the film we run. LUCID is the German packaging register under the Packaging Act (VerpackG) — if you distribute in Germany your own registration obligation is separate, and our registration number is available if your German importer needs it for their filing.
This part is what protects your listing. Four things sit with the brand, not with us:
When a buyer asks for a test, this is the vocabulary and the standard it maps to:
| What is measured | Standard | Why it matters |
|---|---|---|
| Seal strength | ASTM F88 | Whether the seal holds, measured as force per width |
| Leaks and pinholes | ASTM D3078 | Bubble-emission test — the standard way to find a channel leak |
| Water vapour transmission (WVTR) | ASTM F1249 | How fast moisture gets in — the number that decides shelf life for dry goods |
| Oxygen transmission (OTR) | ASTM D3985 | How fast oxygen gets in — the number behind smell-proof and freshness claims |
| Child-resistant closure classification | ASTM D3475 | The classification system for CR closures used alongside the CPSC protocol |
More on how these are run: seal and pinhole testing and moisture loss and WVTR.
Ask for documents at quote stage, not after shipping. What we can issue is confirmed in writing with your quote, so there is no gap between what you expected and what arrives with the cartons.
Shenzhen Sainsun Packaging operates a 10,103 m² facility with 10 production lines covering printing, lamination, slitting, bag-making and quality control. A team of 65 includes 3 R&D engineers and 4 dedicated QA/QC inspectors who sit inside the production flow rather than only at the end. The on-time dispatch rate recorded by Alibaba's platform from actual export orders is 97.4%, audited by SGS through its onsite inspection programme — a platform figure, not a self-reported one. We have been exporting since 2017.
Send two things: the market you sell in and what you are packing. We reply with the matching PDFs, usually the same day — and if a document you need is not one we hold, we tell you that instead of sending something close.
Message Joyce on WhatsApp or email [email protected].
Primary sources for the standards and regulations referred to on this page:
The questions buyers ask most about this.
The material is: our olefin polymer structures were tested by SGS against FDA 21 CFR 177.1520 (retort pouches, Jan 2025) and passed. FDA does not approve finished packaging as such — for a specific product in a specific pack, migration testing on the finished pack is your own step. We send the SGS report on request.
Yes for the material. Our film passes EU food-contact testing to (EC) 1935/2004 and (EU) No 10/2011, run by a third-party lab, and the factory holds BRCGS Packaging Materials Issue 7 Grade B. Tell us what you pack and where you sell, and we confirm the film structure and the documents in your quote.
Grade B under Issue 7, audited by TÜV SÜD, valid to July 2027. The scale runs AA down to D — B is a passing grade, not the top one, and we state it as issued rather than rounding it up.
Yes. A SMETA 4-pillar audit (labour, health and safety, environment, business ethics) was carried out by Intertek in 2026, and we are Sedex registered, so members can pull the audit directly instead of relying on an emailed PDF.
No, and no supplier honestly can. Child resistance is tested on the finished pack in the market where you sell — in the US under CPSC 16 CFR 1700.20. We build the pouch to spec and supply samples for your lab testing; the report and sign-off belong to the brand.
Yes. Send the market you sell in and what you are packing, and we send the matching reports, usually the same day. If we do not hold a document you need, we say so rather than sending something close.
We reply with pricing and a dieline, usually within 24 hours — free design service, samples approved before bulk production.
Chat with Joyce on WhatsAppor email [email protected]
Sainsun Mylar Bags