Quality · Certifications & Third-Party Verification
IATF 16949:2016 at all three plants. ISO 9001 since 2002. And beyond our own lab: commissioned SEM, ICP and BET analysis — the report extracts are below.
Transcribed line by line from the July 2026 certificate scans; full-resolution copies go to customers on request.
We commission external laboratories to characterize our separators — microscopy, elemental purity, surface area. Three report extracts, transcribed from the originals.
Values for one representative glass-fiber sample (2.02 mm × 185 mm). Hg, Pt, Se, Te measured zero across all 8 samples. Checks: metal-ion content vs electrolyte activity · human & environmental safety limits · process-water purity. Full 22-element × 8-sample tables on request.
Submitter: Nanjing Alpha Glass Fibre Product Co., Ltd. BET reflects true fiber fineness, micro-porosity and pore-size distribution — the separator's capacity to absorb and hold electrolyte.
HCW Clean System · Developed In-House
An overseas customer sent us an SEM image of another supplier's separator — floccules lodged between fibers. Our HCW cleaning system, developed in-house and installed in-line, is the answer. The comparison below is from our standard technical package, unedited.
Every startup, shift change, specification change or process change triggers full-dimension first-article inspection under a three-level check: operator self-check, team-leader re-check, inspector verification — with retained samples.
A 13-category foreign-matter watchlist with defined sources, detection methods and frequencies: per-bale raw material checks, in-line filtration and heavy-slag removal, light-table inspection of every finished roll.
Error-proofing devices are specified at process design for safety-related and high-severity characteristics, with challenge parts to verify each device and defined backup inspection modes if a device fails.
Six production systems — pulping, beating, forming, drying, rolling and thickness control — feed a central manufacturing control room monitoring output, pass rate and equipment utilization in real time.
Controlled indicators, lot by lot: thickness under defined pressures, grammage, density, tensile strength, wicking height, porosity and pore size, wet strength, acid absorption under pressure, puncture resistance, compression recovery, moisture, electrical resistance, ICP impurity content, acid weight loss and KMnO₄-reducible matter.
Certificate scans, complete third-party test reports and audit scheduling — one email away.
