ISO 4064-3-2024 PDF

Full title and description

Water meters for cold potable water and hot water — Part 3: Test report format. Specifies a standardized test-report layout and the mandatory/optional data elements to record results from type and routine testing of water meters used for cold potable and hot water, to be used alongside the metrological requirements and test methods given in Parts 1 and 2 of ISO 4064 (and corresponding OIML R 49 parts).

Abstract

This part of ISO 4064 defines the format, required fields and structure for test reports for water meters (cold potable water and hot water). It sets out the information that laboratories, manufacturers and conformity assessment bodies should include when reporting results of type and routine tests, including identification, test conditions, measured values at defined flowrates, evaluation criteria and metrological uncertainty statements. The format is intended for use with ISO 4064-1:2024 and ISO 4064-2:2024 (and corresponding OIML R 49 documents).

General information

• Status: Published
• Publication date: 19 December 2024
• Publisher: International Organization for Standardization (ISO)
• ICS / categories: 91.140.60 (Water supply systems)
• Edition / version: 5th edition (ISO designation: ISO 4064-3:2024, ed.5.0)
• Number of pages: 69

Scope

This document specifies a test report format to be used in conjunction with ISO 4064-1:2024 (metrological and technical requirements) and ISO 4064-2:2024 (test methods), and with the matching OIML R 49 parts, for water meters intended to measure cold potable water and hot water. It defines the content and sequence of information required in reports for type approval, pattern evaluation and routine testing so that results are clear, comparable and suitable for conformity assessment and record keeping.

Key topics and requirements

• Mandatory identification data: manufacturer, model/type, serial number, meter size and nominal flow characteristics.
• Test identification: laboratory name, accreditation status, test date(s), standard references and test report number.
• Test conditions: fluid type and temperature (cold/hot), inlet conditions, ambient conditions and any deviations from standard test setups.
• Flowrates and test points: defined test flowrates (Qmin, Qt, Qn, Qmax where applicable) and measured volumes/flows at each point.
• Measurement results and evaluation: expressed errors, percent deviations, pass/fail against limit values from ISO 4064-1, and any correction factors applied.
• Uncertainty and traceability: statement of measurement uncertainty (coverage factor), calibration traceability of instrumentation and methods used to evaluate uncertainty.
• Recording non‑metrological information: mounting arrangement, orientation, seals, registers checked and any non‑conformities observed.
• Signatures and approvals: authorized laboratory signatory, date, and statements on conformity or conditional findings.
• Annexes and templates: recommended report templates and examples of filled fields to promote harmonized reporting across laboratories and jurisdictions.

Typical use and users

Used by type‑approval and calibration laboratories, meter manufacturers, conformity assessment bodies, certification and inspection agencies, water utilities and regulatory authorities. Typical applications include preparing official test reports for type evaluation, routine production testing, conformity assessment, technical dossiers for regulatory submission, and internal quality records for manufacturers and testing laboratories.

Related standards

Part of the ISO 4064 series; closely linked documents include ISO 4064-1:2024 (metrological and technical requirements) and ISO 4064-2:2024 (test methods). Other related parts in the series address non‑metrological requirements and installation (Part 4, Part 5). Equivalent or corresponding OIML documents are OIML R 49-1 and OIML R 49-2. National/adopted versions (EN/ISO, DIN/ISO, etc.) may exist that reproduce ISO 4064-3:2024 with national forewords or additions.

Keywords

water meter, potable water, hot water, test report, metrology, test format, type approval, routine test, measurement uncertainty, ISO 4064

FAQ

Q: What is this standard?

A: ISO 4064-3:2024 is Part 3 of the ISO 4064 series and specifies the required format and content for test reports produced for water meters intended to measure cold potable and hot water.

Q: What does it cover?

A: It covers the structure and mandatory/optional fields for laboratory test reports, including identification, test conditions, measured values at defined flow rates, uncertainty statements, evaluation against limit values and signatures—used together with the metrological requirements and test methods in Parts 1 and 2.

Q: Who typically uses it?

A: Manufacturers, testing and calibration laboratories, conformity assessment bodies, certification/inspection agencies, water utilities and regulators use it to prepare and evaluate standardized test reports.

Q: Is it current or superseded?

A: Current — ISO 4064-3:2024 is the 2024 edition and supersedes ISO 4064-3:2014. It was published on 19 December 2024.

Q: Is it part of a series?

A: Yes — it is part of the ISO 4064 series (water meters for cold potable water and hot water). Other parts address metrological requirements (Part 1), test methods (Part 2), non‑metrological requirements (Part 4) and installation requirements (Part 5).

Q: What are the key keywords?

A: Key keywords include water meter, test report, potable water, hot water, metrology, measurement uncertainty, type approval and conformity assessment.