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IS 779:1994

Flow meters used as water meters (bulk and domestic types)

BIS QCO · ISI MARK · 5 LINES · WATER METERS (COLD POTABLE WATER) QUALITY CONTROL ORDER, NOTIFIED VIDE S.O. 1142(E)

IS 779 specifies the requirements for cold-water meters of the inferential class used to measure the volume of cold potable water flowing through a closed pipe. The standard covers metrological accuracy, pressure rating, head loss and durability testing for liquid flow meters and their parts.

At a glance

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Chapter 90

Primary HSN chapter

ISI

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Water Meters (Cold Potable Water) Quality Control Order, notified vide S.O. 1142(E)

Governing Quality Control Order

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Heading 9026

9026 10 10Flow meters used as water meters (bulk and domestic types)9026 10 90Liquid flow and level meters (water meters, bulk and domestic types)9026 90 00Parts and accessories of water meters and liquid-flow instruments

Heading 9028

9028 20 00Liquid meters for water and flow measurement (water meters, bulk meters)9028 90 90Parts and accessories of water meters (bulk and domestic type)

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Last verified against gazette notifications: 2026-05-16. Source: BIS / Indian Customs CUSDATA.