Transcript Annex DE Combined Presentation_AP

NSF/ANSI Standards 60/61
Issue Paper #1 – Combining Annex D and E
Issue Paper #2 – Additional Pass/Fail Criteria
December 2013
COMBINING ANNEX D AND
ANNEX E
Introduction
• Drinking water pass/fail criteria in NSF/ANSI Standards
60/61 are currently located in two separate annexes
• Annex D (normative) and Annex E (informative)
• In each annex, there are multiple tables (D1-D4 and E1-E2)
• As the annexes are currently maintained separately for
Standard 60 and Standard 61, pass/fail criteria for chemicals
may be listed in one Standard but not the other and duplicative
entries are more challenging to identify
• Maintaining multiple tables in two Standards makes it difficult
for users to locate pass/fail criteria
Recommendations
• Consolidate the drinking water criteria currently in
Annex D and Annex E into a single annex
• Combined annex would be identical and appear in
NSF/ANSI Standard 60 and Standard 61
• Recommendation is supported the Joint Peer
Review Steering Committee (JPRSC)
Joint Peer Review Steering Committee
• Established to consolidate efforts among ANSI accredited
certification bodies to prioritize risk assessments for review by the
HAB and reconcile action levels derived from duplicate risk
assessment efforts
• Membership includes HAB chair and representatives from five
certification bodies
• Officially reached agreement to harmonize efforts in April 2013
Recommended Format for Combined Annex
• The current recommendation is to have the chemicals
organized by both CAS# and alphabetically
Contaminant
carbon disulfide
75-15-0
Drinking Water
Regulatory Level
(MCL/MAC) or Total
Allowable
Concentration (TAC)
(mg/L)
0.7
carbon tetrachloride
56-23-5
0.005
0.0005
6482-34-4
0.003
0.0003
Derived from the
oral RfD on the
USEPA IRIS database
with a default 20%
relative source
contribution for
drinking water.
Verification date:
08/05/1985
40 CFR §141.60, 40
CFR §141.61
TOE
61788-85-0
0.003
0.0003
TOE
7440-45-1
0.003
0.0003
TOE
302-17-0
0.7
0.07
carbonic acid, diisopropyl ester
castor oil, hydrogenated, ethoxylated
cerium
chloral hydrate
CAS #
chloramines (total as Cl2)
10599-90-3
chlorate
chlordane
14866-68-3
57-74-9
11
4
1
0.002
Single Product
Allowable
Concentration
(SPAC) (mg/L)
0.07
0.4
0.2
0.0002
Short Term
Exposure
Level
(STEL)
(mg/L)
Source of
Supporting
Documentation
Previous
Annex
Location
Std. 61 D3
1, 2, 3, 4, 5, 6
Derived from the
oral RfD on the
USEPA IRIS database
with a default 20%
relative source
contribution for
drinking water.
Agency Consensus
Date: 11/16/1999
40 CFR §141.54
40 CFR §141.60, 40
CFR §141.61
Std. 60 D1,
Std. 61 D1
Std. 60 D4,
Std. 61 D4
Std. 60 D4,
Std. 61 D4
Std. 60 D4,
Std. 61 D4
Std. 60 D3,
Std. 61 D3
Std. 60 D1,
Std. 61 D1
Std. 60 D1
Std. 60 D1,
Std. 61 D1
Format Challenges
• Chemical names – There is not a currently unified
chemical naming approach between certifiers which
limits the benefits of the alphabetical listing
– May be possible to address through JPRSC
• Length – The proposed format results in a 199 page
document
– This does not include substantial future additions
– Solution may be to remove annexes containing pass/fail
criteria from Standards into a separate stand alone document
Normative/Informative
• Currently, NSF/ANSI Standards 60/61 distinguish between
normative and informative pass/fail criteria
• Normative Criteria
– Under Annex D, pass/fail values listed are to be used in the
determination of product compliance with the Standard
• Informative Criteria
– Under Annex E, a chemical that exceeds the informative criteria
should be subject to a complete toxicity data review and risk
assessment prior to using the informational evaluation criteria to
determine compliance with the Standard
• A consensus among the JPRSC membership was that no
distinction is currently made between normative and
informative values when evaluating compliance
ADDITION/UPDATES OF
PASS/FAIL CRITERIA
New Pass/Fail Criteria
- Based on reconciliation efforts and development
of new risk assessments, NSF International, along
with the remainder of the JPRSC membership, is
recommending the addition (or update) of 541
pass/fail criteria to Annex D/E of both Standards
- A footnote referencing to the activities of the JPRSC
would be included
Sources of New Criteria
• NSF International – Peer Reviewed Risk
Assessments
– Peer reviewed in 2012 or 2013 by the Health Advisory Board
• NSF International – Threshold of Evaluation
Chemicals
• NSF International – Other Additions
• JPRSC – Initial List of Reconciled Values
• JPRSC – Threshold of Evaluation Chemicals
Questions for the Joint Committee
• Should Annex D and Annex E be combined into a
single Annex?
• Is it appropriate to have the newly formatted annex
be considered normative?
• Are two separate tables necessary (one organized by
CAS# and the other alphabetically by chemical
name)?
• Should the annex of pass/fail criteria be removed
from the Standards into separate stand alone
document?