If you plan to bring clothing to the market in Russia or the EAEU countries, laboratory testing is a mandatory step toward certification. These tests confirm product safety, compliance with technical regulations, and enable legal retail and online sales.
But here's a key point: testing begins long before entering the laboratory — it starts with how you prepare your products. Incorrect samples, labeling errors, or inaccurate fabric composition can lead to certification refusal, extra costs, and delivery delays. Below is a detailed checklist prepared by WorldWideBridge experts to help you navigate this process confidently and efficiently.

Samples for Testing: What Exactly Needs to Be Provided 

The lab assesses not the product description, but actual clothing samples. These samples form the basis for the test protocol results. Therefore:

• Prepare 1–2 units of each model (e.g., T-shirts, dresses, trousers).
• Samples must be fully finished and ready for sale: with seams, fittings, labels, and trims.
• Use items that have not been worn, washed, and are taken directly from production or finished batches.

Tip: If you want to include several models (e.g., a T-shirt and a long-sleeve shirt) in one certificate, discuss this with the certification body in advance. You may need to provide the “highest risk” model — the one with the most complex fabric or design.

Fabric Composition: Facts Must Match the Declaration 

Labs often find discrepancies between the declared and actual fabric composition — a common reason for certification failures. To avoid this:

• Verify the exact fiber content percentage (e.g., 95% cotton, 5% elastane).
• Specify raw material names according to GOST — essential for proper documentation.
• Consider not only the main fabric, but also lining, trims, threads, and fittings.

Important: Even 3–5% of synthetic fibers can affect the type of tests required or the applicable regulation. Don’t cut corners — preliminary checks are cheaper than redoing the process.

Product Labeling: Frequently Overlooked Requirements 

Labeling is your “business card” for both the lab and consumers. Violations here can lead to outright rejection. Each item must have:

• Product name (e.g., “Women’s summer trousers”);
• Exact material composition;
• Size labeling;
• Care symbols and text;
• Country of origin;
• Manufacturer or importer name;
• EAC mark — if subject to TR CU regulations.

Default requirement: Labeling must always be in Russian — even if the product is imported.

Documentation and Packaging: Often Underrated, But Critical 

Many assume only the samples and fabric matter, but labs also inspect packaging and documents — especially for imported goods. Ensure you have:

• Packaging that is safe, sealed, and free from toxic substances;
• Product passport or user manual (if required by regulation);
• Contract with the manufacturer, shipping documents, invoice, delivery notes — especially for international imports.

Important: Missing even one document may result in certification denial or testing delays.

Get Support and Complete Testing Without Mistakes 

Certification is not just bureaucracy. It’s a precise process where every detail matters. That’s why WorldWideBridge offers expert support:

• Selection of the appropriate certification type (TR CU, GOST, Declaration);
• Fabric and labeling check before lab submission;
• Testing only in accredited laboratories;
• Full support through to certificate issuance and registry entry.

Conclusion: Save your time, money, and peace of mind — prepare for testing wisely, or better yet, leave the process to the experts.
Submit a request — get a free consultation from WorldWideBridge specialists today. We'll tell you exactly which documents you need and how to avoid common certification mistakes.
WorldWideBridge — We prepare, verify, certify. No errors. No returns.