TDS · Technical data sheet
Review product identity, typical properties, conditions and process guidance. Order acceptance needs agreed control items.
Technical resources
Technical resources for a clearer choice
Read material properties, lot data and certification scope to build a clear purchasing-document checklist.
Technical properties & test methods
Compare materials with the method, conditions and units in view. Product values belong in the grade TDS; delivered-lot results belong in the COA.
| Property | Unit | Common method | Comparison basis |
|---|---|---|---|
| Melt mass-flow rate | g/10 min | ISO 1133 / ASTM D1238 | Temperature, load and conditioning |
| Density | g/cm³ | ISO 1183-1 | Specimen form, method and temperature |
| Viscosity | dL/g | ASTM D4603 / ISO 1628-5 | Viscosity definition, solvent and temperature; methods are not interchangeable |
| Tensile & flexural | MPa | ISO 527 / ISO 178 | Specimen preparation, speed and conditioning |
| Impact strength | kJ/m² | ISO 179 / ISO 180 | Charpy or Izod, notch and test temperature |
| Moisture, ash & contamination | % / ppm | By test item | Sampling, drying or ashing conditions and evaluation method |
This is a test-item guide. Product acceptance uses the methods and editions agreed for the order.
Certification & document guide →Different documents answer different questions
COA · Certificate of analysis
Connect the lot number, date, sampling and measured results to the material delivered.
SDS · Safety data sheet
Review identification, handling, storage, fire and transport information for the matching product and edition.
GRS / RCS · Recycled content & chain of custody
Check the certified entity, site, material and processing scope. Scope and transaction certificates serve different purposes.
How to verify recycled certification
GRS / RCS use third-party certification and chain-of-custody verification. Check the company, status, validity, product and process scope and, where needed, transaction certificates. Certification does not replace performance or end-use testing.
This page explains industry document verification. Discuss document requirements for the specific supply product during technical and commercial review.
Find a certified company ↗Standards & industry resources
Reviewed 22 October 2026. Refer to the issuing organization for current methods and certification requirements.
Textile Exchange · GRS / RCS↗Textile Exchange · Content Claim Standard↗ISO 1183-1:2025 · Density↗ASTM D4603-26 · PET viscosity↗ZwickRoell · MFR / MVR↗Start with your material requirement
Tell us the application, process and performance targets. Discuss products, samples and quotations.