| Cleaning performance | Check removal of representative stains, such as oily soil, particulate soil, and protein-based stains. Compare performance at the intended wash temperature, dose, water hardness, and wash conditions. | ASTM D4265 is a guide for evaluating stain-removal performance in home laundering. Agree on a controlled comparison protocol and use the same conditions for every sample. | Test protocol, stain panel and control detergent details, replicate results, sample identification, and complete test conditions. Request results for the intended market and use case. |
| Powder consistency | Review moisture, appearance, particle-size distribution, bulk density, flow, and caking. Set product-specific limits rather than relying on a universal benchmark. | Use validated, documented methods and mutually agreed acceptance limits. Record the sampling plan and test method for each attribute. | Product specification, test-method descriptions, batch certificates of analysis, sampling records, and procedures for handling out-of-specification lots. |
| Active ingredient verification | Confirm that declared surfactant levels and other key formulation components are controlled consistently from batch to batch. | ISO 2271 describes determination of anionic-active matter in detergents by direct two-phase titration. Confirm that the method is suitable for the formulation being tested. | Representative analytical reports, method validation or suitability information, laboratory details, and agreed target ranges for relevant active matter. |
| pH and wash-use suitability | Assess the pH of a defined aqueous solution and consider its relevance to the intended washing instructions and materials. | ISO 4316 specifies a potentiometric method for determining the pH of aqueous solutions of surface-active agents. Specify the solution concentration and preparation conditions. | pH specification, test procedure, batch results, and any use or handling guidance based on the product’s intended application. |
| Textile care and color performance | Check for unacceptable color change, staining, or fabric effects under representative wash conditions. Results depend on the textile, detergent dose, and wash cycle. | ISO 6330 specifies domestic washing and drying procedures for textile testing. ISO 105-C06 addresses color fastness to domestic and commercial laundering. | Tested fabric types, wash and drying conditions, detergent dose, evaluation method, and results relevant to the claims or care instructions being considered. |
| Formulation flexibility | Discuss suitable options such as enzyme-containing formulations, oxygen-bleach systems, fragrance-free versions, or different builder systems. Confirm compatibility, stability, and cleaning performance for each option. | There is no single test standard that proves every formulation option is suitable. Define product-specific stability, performance, packaging, and compatibility tests before approval. | Ingredient and function overview, formulation change-control process, stability data, compatibility results, and confirmation of which claims are supported by testing. |
| Water and temperature conditions | Determine whether the product performs adequately in the expected water-hardness range and at the temperatures stated in its instructions. | Use a documented performance protocol that controls water hardness, temperature, dose, load, wash cycle, and test soils. ASTM D4265 can guide stain-removal evaluation. | Results across the agreed conditions, test-water preparation details, recommended dosage, and any limitations in the product’s use instructions. |
| Regulatory readiness | Check ingredient disclosure, hazard classification, labeling, and environmental requirements for each destination market. Requirements vary by jurisdiction and product composition. | For products placed on the EU market, review applicable requirements under Regulation (EC) No 648/2004 on detergents and Regulation (EC) No 1272/2008 on classification, labeling, and packaging. Confirm current local requirements before launch. | Market-specific compliance documents, safety data sheet, label review, ingredient information, and supporting evidence for environmental or performance claims. |
| Quality management and traceability | Assess documented controls for incoming materials, production, finished-product release, complaints, and corrective actions. Treat management-system certification as supporting evidence, not proof of product performance. | ISO 9001 covers quality management systems. Verify the certificate’s scope, status, and issuing certification body where certification is claimed. | Current certificate where applicable, manufacturing-site scope, lot coding system, retained-sample policy, complaint procedure, and recall or traceability process. |
| Supplier approval decision | Compare suppliers using the same specification, sample protocol, regulatory checklist, and commercial assumptions. Resolve open technical issues before approving production. | Use a documented internal evaluation matrix with defined pass/fail requirements and weighted criteria appropriate to the product and market. | Approved specification, signed sample evaluation, agreed change-notification terms, batch-release requirements, and a written plan for ongoing performance review. |