ISO 10385-1-2000 PDF

Full title and description

ISO 10385-1:2000 — Measurement of water flow in closed conduits — Meters for hot water — Part 1: Specifications. This part defines technical and metrological specifications for water meters intended for measuring hot water in closed conduits, including designation, performance classes and marking.

Abstract

Part 1 of ISO 10385 provides the specification-level requirements for meters designed for hot water service: intended application, essential design and performance characteristics, accuracy classes, test/inspection requirements and required markings to ensure traceable metrological performance in potable and industrial hot water systems.

General information

• Status: Withdrawn / replaced (withdrawal recorded; new edition published under ISO 4064-1).
• Publication date: 30 November 2000 (ISO record shows publication in late 2000; formal ISO listing gives 2000-12).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 91.140.60 — Water supply systems.
• Edition / version: Edition 1 (2000).
• Number of pages: 14 pages (original published edition).

Scope

This standard specifies the requirements for water meters intended for measurement of hot water flow in closed conduits, covering designation and classification of meters, metrological performance (accuracy classes and permissible errors), constructional and material considerations relevant to hot water service, marking and information to be supplied, and test procedures required to verify conformity to the specification. The part is limited to specification-level requirements and is intended to be used together with national regulations and installation guidance.

Key topics and requirements

• Definitions and meter classification (meter types suitable for hot water service).
• Metrological performance: accuracy classes and permissible errors across defined flow ranges.
• Construction and materials appropriate for hot water (thermal resistance, seals, materials compatibility).
• Required marking and documentation (identification, accuracy class, nominal sizes, flow ranges).
• Test and inspection requirements needed to demonstrate conformity to the specification.
• Reference to related installation and verification practices for field use and type approval testing.

These topics reflect the typical content of an ISO specification for water meters intended for hot water service.

Typical use and users

Primary users include water meter manufacturers, metrology and type‑approval laboratories, utilities and water authorities, procurement and regulatory bodies, and engineering firms responsible for specifying or installing hot‑water metering equipment. The document is used for product specification, type testing and conformity assessment prior to market placement.

Related standards

ISO 10385-1:2000 has been withdrawn and its scope subsequently covered by later ISO work in the water meter series; it is shown as replaced by ISO 4064-1:2005 (and associated ISO 4064 parts). Users should refer to the ISO 4064 series for the current internationally accepted requirements for water meters.

Keywords

water meter, hot water, measurement, flowmeter, closed conduit, metrological specifications, accuracy class, type testing, ISO 10385, ISO 4064.

FAQ

Q: What is this standard?

A: ISO 10385-1:2000 is an international specification that defined requirements for meters used to measure hot water flow in closed conduits (Part 1 — specifications).

Q: What does it cover?

A: It covers designation/classification of hot‑water meters, metrological performance and accuracy classes, construction/material considerations for hot water, marking/documentation requirements and test/inspection provisions to demonstrate conformity.

Q: Who typically uses it?

A: Meter manufacturers, test laboratories, utilities, regulators and procurement teams use the specification for product design, type approval testing and purchasing requirements.

Q: Is it current or superseded?

A: It has been withdrawn; the work was superseded and the international requirements for water meters are now covered under the ISO 4064 series (ISO 4064-1:2005 and related parts). Users should consult the ISO 4064 series for the current standard.

Q: Is it part of a series?

A: Yes — ISO 10385-1 was part of ISO’s water‑meter standardization work and its subject matter has been integrated into the broader ISO water meter series (notably ISO 4064 and related parts).

Q: What are the key keywords?

A: Keywords include: water meter, hot water, flow measurement, closed conduit, accuracy class, metrological specification.