Water meters are essential devices used to measure water consumption in homes and buildings, ensuring accurate billing based on usage. Commonly found in apartment complexes, single-family homes, and various other properties, these meters function like a watch for water usage, allowing homeowners to monitor their consumption and ensure fair billing.

IS 779:1994 is a key Indian Standard that outlines the design, materials, performance, and testing requirements for domestic water meters. It ensures accurate water measurement and is specifically applicable to threaded-connected water meters with diameters up to 50 mm, designed to measure flow rates ranging from 1.5 to 15 kilolitres per hour. These meters are suitable for cold drinking water under a maximum pressure of 1 MPa.

This standard covers the terminology, construction, and technical details of both piston and turbine water meters, including magnetic meters. Additionally, it provides guidelines for installation, maintenance, and ensures the quality and safety of the products, all of which are verified by the Bureau of Indian Standards (BIS) to protect consumers and maintain industry standards.

Tests

The certification process for Water Heaters involves a series of tests to evaluate their various properties. These tests include:

Mandatory Tests:

• Construction

• Indicating device

• Meter size and Overall dimensions

• Pressure tightness test

• Loss of pressure

Optional Tests:

• Materials

• Temperature suitability

BIS certification for water meters, including the IS 779:1994 standard for residential use, ensures these devices are accurate and reliable. Compliance with this standard guarantees that water meters meet strict requirements for precise water measurement in homes.

BIS certification provides assurance that household water meters are accurate and dependable. This certification ensures fair billing and promotes efficient water use, supporting environmentally-friendly practices.

PROCESS FOR BIS ISI MARK CERTIFICATION