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Part B: Supplementary Information Sheet (SIS)
FR Recognition List Number 056 Date of Entry 06/07/2021 
FR Recognition Number 9-134
ISO 23500-2 First edition 2019-02
Preparation and quality management of fluids for haemodialysis and related therapies - Part 2: Water treatment equipment for haemodialysis applications and related therapies
U.S. Identical Adoption
ANSI AAMI ISO 23500-2:2019
Preparation and quality management of fluids for haemodialysis and related therapies - Part 2: Water treatment equipment for haemodialysis applications and related therapies
1.1 General
This document is addressed to the manufacturer and/or supplier of water treatment systems and/or devices used for the express purpose of providing water for haemodialysis or related therapies.

1.2 Inclusions
This document covers devices used to treat potable water intended for use in the delivery of haemodialysis and related therapies, including water used for:
a) the preparation of concentrates from powder or other highly concentrated media at a dialysis facility;
b) the preparation of dialysis fluid, including dialysis fluid that can be used for the preparation of substitution fluid;
c) the reprocessing of dialysers intended for single use where permitted for multiple uses,
d) the reprocessing of dialysers not specifically marked as intended for single use.

This document includes all devices, piping and fittings between the point at which potable water is delivered to the water treatment system, and the point of use of the dialysis water. Examples of the devices are water purification devices, online water quality monitors (such as conductivity monitors), and piping systems for the distribution of dialysis water.

1.3 Exclusions
This document excludes dialysis fluid supply systems that proportion water and concentrates to produce dialysis fluid, sorbent dialysis fluid regeneration systems that regenerate and recirculate small volumes of the dialysis fluid, dialysis concentrates, haemodiafiltration systems, haemofiltration systems, systems that process dialysers for multiple uses, and peritoneal dialysis systems. Some of these devices, such as dialysis fluid delivery systems and concentrates, are addressed in other documents such as ISO 23500-4 and ISO 23500-5,

This document also excludes the on-going surveillance of the purity of water used for dialysis fluid, concentrate preparation, or dialyser reprocessing which is addressed in ISO 23500-1.
Extent of Recognition
Complete standard
Rationale for Recognition
This standard is relevant to medical devices and is recognized on its scientific and technical merit and/or because it supports existing regulatory policies
Transition Period
FDA recognition of ISO 26722 Second edition 2014-04-01 [Rec# 9-101] will be superseded by recognition of ISO 23500-2 First edition 2019 [Rec# 9-134]. FDA will accept declarations of conformity, in support of premarket submissions, to [Rec# 9-101] until July 10, 2022. After this transition period, declarations of conformity to [Rec# 9-101] will not be accepted.
Public Law, CFR Citation(s) and Procode(s)*
Regulation Number Device Name Device Class Product Code
§876.5665 Subsystem, Water Purification Class 2 FIP
Relevant FDA Guidance and/or Supportive Publications*
Regulatory Status of Disinfectants Used to Process Dialysate Delivery Systems and Water Purification Systems for Hemodialysis; Guidance for Industry and FDA, Issued August 2002.
FDA Technical Contacts
 Gema Gonzalez
 Richard J. Williams
Standards Development Organization
ISO International Organization for Standardization https://www.iso.org/
FDA Specialty Task Group (STG)
*These are provided as examples and others may be applicable.