Q&A: Flushable Product Testing and Certification

  • Open How long does it take to get products certified?

    NSF has one of the most extensive flushability laboratories in the world, operated by expert lab technicians. We also employ an international network of highly trained auditors. These combined resources enable us to complete most laboratory testing for flushability in about eight weeks, followed immediately by the manufacturing facility inspection. To save time, we can conduct the facility inspection at the same time as testing. We finalize certification quickly after successful completion of the testing and facility inspection.

  • Open What tests will be conducted to show that my product is flushable?

    The INDA/EDANA flushability guidelines determine which tests to conduct for your specific type of product. In order to claim that your product is flushable, a product must generally undergo a toilet bowl and drainline test, a dispersability test, a column settling test and aerobic and anaerobic disintegration tests. These tests encompass the various U.S. and European-size pathways that a product may follow in the wastewater system.

  • Open How much does certification cost?

    NSF International is an independent organization that charges for its testing, auditing and listing services. After receiving an application for certification and the necessary product and testing information, we prepare an accurate estimate for the complete cost of initial certification. These estimates vary based on the number of products submitted, the specific tests required and the location of the production facility. Be sure you review all of those factors carefully when discussing the cost estimate with your NSF project manager.

  • Open What is involved in the NSF facility inspection?

    An NSF auditor will first contact you to schedule your initial facility inspection. During the inspection, the auditor reviews product information and packaging, conducts a walk-through of the production facility to inspect the manufacturing process and may request to review documents such as purchasing records. The entire process can usually be completed in two to four hours.

  • Open How will people know my products have been "certified flushable" by NSF?

    Once your certification is complete, you may begin using NSF’s “certified flushable” mark on your packaging, point-of-purchase and sales materials and advertising. In addition, details of your listing are added to NSF’s listings website.