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How to Read a Bag Lab Test Report: SGS and Intertek Reports Explained

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agosto 14, 2026

A lab test report is the difference between a bag that is compliant and a bag that is merely claimed to be compliant. SGS, Intertek, and their competitors publish reports in a standard structure, and a buyer who can read that structure can spot an irrelevant test, a wrong standard, and a report that does not actually cover the shipped product. This guide walks through the anatomy of a bag test report and the checks that matter for each section.

What is Proposition 65 and how is it enforced?

The Report Header: The Five Fields That Make It Valid

A valid report header carries five fields a buyer should check before reading any results: the report number, the sample description, the standard and method tested against, the test dates, and the laboratory’s accreditation marks (ISO/IEC 17025 for the testing lab). The two most common fraud patterns live right here: a report issued for a different product than the one shipping, and a report testing an outdated version of the standard. The sample description must name your product, material, and colorway, not a generic ‘textile bag’.

REACH SVHC testing documentation for EU bags

The Test Tables: What Each Line Actually Measures

Bag reports typically group results into physical, chemical, and regulatory tables. Physical tests cover fabric weight (GSM), tensile and tear strength, seam slippage, and load capacity. Chemical tests target restricted substances: lead and cadmium content, phthalates, azo dyes, and, for food-contact or children’s lines, the relevant migration tests. Regulatory tables map the results against the standard’s limits and state a pass or fail per parameter. Read the limits column as carefully as the results column, because a passing result against the wrong limit is still a failure for your market.

Digital thickness gauge measuring fabric GSM

Standards by Market: Matching the Report to the Destination

The standard a report tests against must match the destination market’s rules. EU-bound bags answer to REACH chemical restrictions and the General Product Safety Regulation; US-bound bags face state rules like California Proposition 65 and federal requirements for specific product classes; children’s and food-contact lines carry their own far stricter standards. A report against a China GB standard says nothing about EU or US compliance. The buyer’s job is to name the destination regulation in the test request, because labs test what they are asked to test.

Pre-production sample bags with load and tear test parameters

The Fine Print: Scope, Condition, and What Reports Cannot Say

Three fine-print items deserve attention. The scope line defines exactly which parts of the product were tested: a report testing only the fabric does not cover the print, the zipper, or the webbing, and those components are where restricted substances usually hide. The test condition states whether the item was tested as received or after washing, which changes results materially. And the report itself only certifies the tested samples; it is the factory’s production consistency, backed by your own batch testing, that extends that result to the container.

Preguntas frecuentes

What makes a bag test report valid?

A valid report names the report number, the exact sample description, the standard and method tested, the test dates, and the laboratory’s ISO/IEC 17025 accreditation marks.

Which tests does a bag lab report normally include?

Physical tests cover GSM, tensile and tear strength, seam slippage and load capacity. Chemical tests cover lead, cadmium, phthalates, azo dyes and relevant migration limits.

Does a report against a China GB standard prove EU compliance?

No. Reports prove compliance only against the standard actually tested. EU bags need REACH-based testing, and US bags need state and federal requirements such as Proposition 65.


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En este puesto

    Nick

    Nick

    Autor

    Hola, soy Nick. Con más de 10 años de experiencia en el sector del embalaje, soy el puente entre las marcas minoristas globales y la fabricación directa de fábrica. En TIIO, ayudamos a las empresas de logística y a los minoristas suministrando bolsas de transporte de alta resistencia y soluciones térmicas sin los quebraderos de cabeza de las complejas cadenas de suministro.

    Nos encargamos de todo, desde el aprovisionamiento de materias primas hasta la logística DDP, para que usted pueda centrarse en ampliar su negocio. Ya no tendrá que lidiar con problemas de calidad o retrasos en los envíos: hacemos que el proceso de aprovisionamiento sea fluido y fiable.

    Mi pasión por esta industria es muy personal. Recuerdo una noche en la fábrica, supervisando la carga de bolsas ecológicas para un cliente. Mientras veía cómo se llenaban los contenedores, pensaba en mi hija pequeña, que esperaba en casa. Ella es mi inspiración para impulsar productos sostenibles y más ecológicos. Cada pedido que hacemos no es sólo un negocio, es un paso hacia un futuro más limpio para su generación.

    Siempre me entusiasma colaborar con socios que valoran la calidad y la sostenibilidad. Conectemos y crezcamos juntos.

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