Overview
EN ISO 4064-3:2025 specifies a standardized test report format for water meters intended for measuring cold potable water and hot water. Published by CEN and based on ISO 4064-3:2024, this standard is part of the ISO 4064 series which ensures uniformity and reliability in the testing, approval, and verification of water meters. The document provides a comprehensive and structured layout for both type evaluation and initial verification reports, ensuring clear documentation of compliance with metrological and technical requirements as described in ISO 4064-1:2024 and ISO 4064-2:2024.
Key Topics
- Standardized Test Report Format: Establishes a clear, detailed layout for presenting the results of water meter tests and evaluations.
- Applicability: Designed for use with meters measuring both cold potable and hot water.
- Report Structure: Addresses both type evaluation and initial verification, ensuring all necessary technical and administrative data is included.
- Coverage of Meter Types: Provides templates for complete and combined mechanical and electronic meters, separable calculators, measurement transducers, and ancillary devices.
- Test Checklists and Documentation: Facilitates consistency in external and performance examinations, ensuring repeatability and accuracy in results.
- Integration with Existing Standards: The format is intended to be used together with ISO 4064-1 (technical and metrological requirements) and ISO 4064-2 (test methods) for comprehensive conformity assessment.
- Regulatory Acceptance: While implementation may be informative at the national level, the format is required within the OIML Certificate System for Measuring Instruments.
Applications
The standardized test report prescribed by EN ISO 4064-3:2025 delivers significant practical value to manufacturers, testing laboratories, regulatory authorities, and water utilities by:
- Facilitating Uniform Compliance: By enabling consistent recording of technical details, test conditions, and results, the format helps ensure that water meters meet international and national standards for accuracy, reliability, and safety.
- Supporting Type Approval and Market Access: A harmonized test report streamlines certification processes, aiding manufacturers and importers in obtaining type approval and market entry across multiple jurisdictions.
- Enhancing Traceability and Accountability: Comprehensive documentation of all relevant parameters, test equipment, and results supports traceability and auditability in quality systems.
- Assisting Regulatory Oversight: Regulators benefit from uniform test records which simplify verification, surveillance, and enforcement of water meter compliance.
- Improving Product Quality: Structured feedback from standardized evaluation methods supports ongoing improvement of water meter design and manufacturing processes.
- Promoting International Trade: Adoption of a common format reduces technical barriers and supports the mutual recognition of test results between countries.
Related Standards
EN ISO 4064-3:2025 forms part of an integrated framework for water meter standardization. Closely related standards include:
- ISO 4064-1:2024 | OIML R 49-1:2024: Water meters for cold potable water and hot water - Part 1: Metrological and technical requirements
- ISO 4064-2:2024 | OIML R 49-2:2024: Water meters for cold potable water and hot water - Part 2: Test methods
- Other parts in the ISO 4064 series: Covering installation requirements, data exchange, and additional test procedures
- OIML R 49 Standards: International recommendations aligned with ISO 4064, recognized in legal metrology systems globally
Keywords: EN ISO 4064-3:2025, water meter test report format, cold potable water, hot water, ISO 4064-3:2024, type approval, initial verification, water meter compliance, international water meter standards, metrological requirements, OIML R 49-3.