CAN-UL 203:2020 pdf download.STANDARD FOR SAFETY-Pipe Hanger Equipment for Fire Protection Service.
1.1 These requirements cover the performance of pipe hanger equipment for use in supporting piping employed in sprinkler systems, water-spray systems, and other piping systems used for fire-protection service.
1.2 Requirements for the installation of pipe hangers and auxiliary equipment and limitations for use of specific sizes of hangers and pipe are included in the Standard for the Installation of Sprinkler Systems, NFPA 13, and the Standard for Water-Spray Fixed Systems for Fire Protection, NFPA 15.
1.3 These requirements cover design variations of hangers defined in Section 5, and do not cover products fabricated from rods of iron or steel with diameters specified by the Standard for the Installation of Sprinkler Systems, NFPA 13, such as U-type hangers, hanger rods, coach screws, and similar products.
2 Components
2.1 Except as indicated in 2.2, a component of a product covered by this standard shall comply with the requirements for that component.
2.2 A component is not required to comply with a specific requirement that:
a) Involves a feature or characteristic not required in the application of the component in the product covered by this standard, or
b) Is superseded by a requirement in this standard.
2.3 component shall be used in accordance with its rating established for the intended conditions of use.
2.4 Specific components are incomplete in construction features or restricted in performance capabilities. Such components are intended for use only under limited conditions, such as certain temperatures not exceeding specified limits, and shall be used only under those specific conditions.
3 Units of Measurement
3.1 Where values of measurement are specified in both SI and U. S. Customary units, it is the responsibility of the user of this standard to determine the unit of measurement appropriate for the user’s needs.
4 Normative References
4.1 The following standards are referenced in this standard, and portions of these referenced standards may be essential for compliance.
American Society for Testing and Materials (ASTM) Standards
ASTM A90/A9OM-O1, Standard Test Method for Weight (Mass) of Coating on Iron or Steel Articles with
Zinc or Zinc-Alloy Coatings
ASTM A653/A653M-02a, Standard Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron
Alloy-Coated (Galvannealed) by the Hot Dip Process
ASTM B568-98, Standard Test Method for Measurement of Coating Thickness by X-Ray Spectrometry
5 Glossary
5.1 For the purpose of this standard the following definitions apply.
5.2 BAND HANGER — A type of hanger that is adjustable and utilizes a band looped around the pipe.
5.3 BRACKET — A cantilever-type hanger that is attached directly to a vertical surface of the building
structure
5.4 “C" CLAMP — A hanger that grips a flange by means of a jaw and setscrew combination.
5.5 CEILING FLANGE — A hanger that is attached directly to an overhead surface of a building structure.
5.6 CLAMP — A hanger that is rigidly attached to the flange of a steel structural member.
a) Beam or Flange Clamp — A clamp that is rigidly attached to both edges of the bottom flange of a structural member.CAN-UL 203 pdf download.