NSF Protocol 534 – Download a Copy
October 27, 2025
Download a copy of NSF Protocol 534 – Evaluation of Pre-products, Formulations and Intermediate, Constituent, Site-applied Products in Connection with the European Drinking Water Directive.
What is NSF Protocol 534?
The purpose of NSF Protocol 534 is to provide a basis for the certification of various pre-products, such as resins, stabilizers, lubricants, and colorants, that are used in final materials or final products that come in contact with water intended for human consumption. Products certified to this protocol have met the minimum hygienic requirements according to CID (EU) 2024/368.
Obtain a copy of NSF Protocol 534
Evaluation of Pre-products, Formulations and Intermediate, Constituent, Site-applied Products in Connection with the European Drinking Water Directive.
Learn more about Protocol 534
Evaluation of Formulations, Pre-products, Intermediate Products, Constituent Products, and Site-applied Products in Connection with the European Drinking Water Directive.
Learn more about EU’s revised Drinking Water Directive
Understand the current and future state of the drinking water product and material compliance requirements for European Union Member States.
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