A collection of featured documents from our library that are popular among our users or otherwise noteworthy.
Selection and installation of backflow preventers/Maintenance and field testing of backflow preventers, Includes Update No. 1 (2026)
Reduced pressure principle (RP) backflow prevention assemblies
Backflow preventers and vacuum breakers
Installation code for decentralized wastewater systems
Accessible design for self-service interactive devices including automated banking machines
Inclusive design for an aging population
Design, material, and manufacturing requirements for prefabricated septic tanks and sewage holding tanks
Cast iron soil pipe, fittings, and means of joining
Frames and covers for maintenance holes and catchbasins
Installation code for lightning protection systems
Storage, handling, and dispensing of aviation fuels at aerodromes
Collapsible fabric storage tanks (bladders)
Fibre-reinforced polymer composite crossarms
Insulators for overhead lines with a nominal voltage above 1000 V - Ceramic or glass insulator units for d.c. systems - Definitions, test methods and acceptance criteria (Adopted CEI/IEC 1325:1995, first edition, 1995-03, with Canadian deviations) | Isolateurs pour lignes aériennes de tension nominale supérieure à 1 000 V - Éléments d'isolateurs en céramique ou en verre pour systèmes à courant continu - Définitions, méthodes d'essai et critères d'acceptation (norme CEI/IEC 1325:1995 adoptée, première édition, 1995-03, avec exigences propres au Canada)
Water-source heat pumps - Testing and rating for performance - Part 1: Water-to-air and brine-to-air heat pumps (Adopted ISO 13256-1:1998, first edition, 1998-08-15, with Canadian deviations)
Water-source heat pumps — Testing and rating for performance — Part 2: Water-to-water and brine-to-water heat pumps (Adopted ISO 13256-2:1998, first edition, 1998-08-15, with Canadian deviations)
Ceramic and glass station post insulators
Composite station post insulators
Test Methods for Station Post Insulators
Performance of electric storage tank water heaters for domestic hot water service
Three-phase network distribution transformers
Single-phase and three-phase liquid-filled distribution transformers
Pole-mounted, single-phase distribution transformers for electric utilities