A Glimpse at the CISPI 301 Standard

Product Marking

In addition to requirements for radiation testing and iron composition,
the CISPI 301 standard requires that cast iron pipe and fittings carry specific markings to make the manufacturer readily identifiable in the event of a problem in the field.
   For pipe, these markings must include:
1) the manufacturer’s name (the ACTUAL manufacturer, not the distributor or importer)
2) the country of origin (where the pipe was cast, not where it was coated or painted)
3) additional trademarks that may indicate compliance with a given standard or certification by a third-party agency
4) the date of manufacture. Though not required by the standard, AB&I also marks the pipe with the time of manufacture to more closely track production parameters.
   Cast iron fittings are also required to be marked with the manufacturer’s name, country of origin, and applicable trademarks and insignia. Date of manufacture is not a required marking for fittings.