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Ductile-Iron Pipe

Standard BNQ 3623-085
Ductile Cast Iron Piping and Joints for Drinking Water and Sewer Line Systems – Characteristics and Test Methods

Manufacturers of ductile iron pipe for pressure water pipelines must take a significant number of elements into consideration to ensure to provide a uniform, safe product. Standard BNQ 3623-085 addresses this need by establishing the general and specific requirements related to the physical, mechanical and dimensional properties of ductile iron pipe to be used in pressure water pipelines of a diameter from 75 mm to 1,600 mm for pipes with bell-and-spigot joints and a diameter of 75 mm to 600 mm for pipes with a mechanical seal. BNQ 3623-085 serves as a reference to evaluation of pipe compliance. It also provides indications regarding sampling, testing methods and control methods applicable to ductile iron pipe (control of dimensional properties, testing methods and compliance control) and marking.

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  • Standards Committee Members
    Number of committee members : 8
    Gérard BizienForterra Conduite sous pression
    Claude CouillardVille de Québec
    Normand De AgostinisAssociation de recherche sur les tuyaux en fonte ductile (DIPRA)
    Donald EllisMinistère de l'Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs (MELCCFP)
    Joël LambertVille de Victoriaville
    Guy MorinCentre de métallurgie du Québec
    Jacques PharandVille de Montréal
    Martin PhinneyCanada Pipe Company ULC


Mark of conformityCertification Offer 

Pipe manufacturers interested in recognition of their products’ compliance, as well as clients, can benefit from obtaining protocol BNQ 3221-900, which establishes the certification requirements, procedural rules and marking requirements that apply to certification of ductile iron pipe for pressure water pipelines under the requirements of BNQ 3623-085. By meeting the requirements of the certification program described in the protocol and the other program documents, they will ensure recognition of their products’ compliance by BNQ and their clients’ satisfaction.

This certification program is accredited by the Standards Council of Canada.