Proposed revision to NSF/ANSI/CAN 61 – Drinking Water System Components – Health Effects (61i159r1)
The proposed revision includes several corrections and clarifications in NSF/ANSI/CAN 61 including:
- Additional guidance in Table 4.2 (Single time point exposure schedule) to be consistent with other exposure sequence tables in the standard.
- Correction of reference to exposure protocol from N-1.4.4.2 to N-1.4.4.4 for other mechanical devices.
N-1.4.4.2 is for POE systems and system components requiring exposure under pressure for a 16-hr exposure time. N-1.4.4.4 redirects to Table N-1.9 which specifies an exposure time of 24 hrs for other mechanical devices, aligning with guidance in section 8.3.2.
- Guidance for reverse osmosis systems in Table N-1.7 (Product exposure) to indicate that typical exposure conditions occur within the product itself.
- Additional guidance on decanting and refilling of samples for in-line and other mechanical devices that was previously included in section N-1.4.4.1 (B.4.4.1) to be consistent with other exposure sequence tables in the standard. |
