| 1 | Tier A — Fully documented manufacturer | Current certificate issued by an accredited certification body; certificate scope covers the relevant manufacturing site. | Current certificate with site and process scope covering environmental management. | Product-specific test reports, including ASTM D638 for tensile properties and ASTM D256 where impact resistance is claimed. | Resin identification, material specification, color standard, lot traceability, and applicable food-contact documentation when required. | 90–100 / 100 | Cosmetic, personal-care, healthcare, and export projects requiring strong audit documentation. |
| 2 | Tier B — Quality-certified manufacturer | Verified ISO 9001 certificate with a manufacturing scope relevant to plastic packaging or injection molding. | ISO 14001 available or environmental controls documented through internal procedures and records. | Independent test reports or controlled internal test records for dimensions, closure fit, appearance, and mechanical performance. | Material grade, batch records, and dimensional inspection data available upon request. | 75–89 / 100 | General retail packaging, promotional jars, and medium-volume custom orders. |
| 3 | Tier C — Documented production supplier | Formal quality procedures in place; ISO 9001 certificate pending, limited in scope, or not independently confirmed. | Basic waste, energy, and chemical-management records available; ISO 14001 status requires verification. | Basic dimensional, visual, closure-torque, and leak-resistance records; ASTM reports may be project-specific. | Material declaration and sample approval available; full lot traceability should be requested contractually. | 60–74 / 100 | Cost-sensitive projects where pre-production sampling and inspection are acceptable. |
| 4 | Tier D — Sample-led supplier | Quality claims require third-party confirmation; certificate number, scope, and validity should be checked before ordering. | Environmental certification not confirmed; request records for scrap, regrind, wastewater, and energy controls. | Use independent pre-shipment testing for dimensions, wall thickness, clarity, color, lid fit, and leakage. | Request a written declaration of acrylic or PMMA content and exclude unapproved recycled or mixed resin. | 40–59 / 100 | Prototype, sampling, and low-risk packaging applications with buyer-controlled inspection. |