23
01040605 A 06/21
NSF/ANSI Standard 401
Substance
Common
Name
Influent
Challenge
Concentration
Maximum
Permissible
Product
Water
Concen-
tration
Reduction
Require-
ments
Minimum
Reduction
Model: TD/Min 1
Model: TD/Min 2
Aqua-
sential
RO
Aqua-
sential
Smart
RO
Aqua-
sential
Smart
RO
Nitrate
Aqua-
sential
RO
(2yr)
Aqua-
sential
Smart
RO
(2yr)
Aqua-
sential
Smart
RO
(2yr)
Nitrate
Flow Rate = 0.5 gpm (1.89 Lpm)
Capacity 1,000 gallons
(3786 L)
Capacity 2,000 gallons
(7570 L)
Average Reduction
Phenytoin
Dilantin
1
200 ng/L ± 20%
30 ng/L
85�0%
95�5%
>95�6%
>95�6%
>95�6%
>95�6%
>95�6%
>95�6%
Ibuprofen
Motrin
1
400 ± 20%
60 ng/L
85�0%
95�3%
>95�4%
>95�4%
>95�4%
>95�4%
>95�4%
>95�4%
Naproxen
Aleve
1
140 ± 20%
20 ng/L
85�71%
96�3%
>96�4%
>96�4%
>96�4%
>96�4%
>96�4%
>96�4%
Estrone
Estrogen
140 ± 20%
20 ng/L
85�71%
96�3%
>96�5%
>96�5%
>96�5%
>96�5%
>96�5%
>96�5%
Bisphenol A
BPA
2,000 ± 20%
300 ng/L
85�0%
98�8%
>98�9%
>98�9%
>98�9%
>98�9%
>98�9%
>98�9%
Nonylphenol
Nonylphenol
1,400 ± 20%
200 ng/L
85�71%
97�5%
>97�5%
>97�5%
>97�5%
>97�5%
>97�5%
>97�5%
Atenolol
Tenormin¹
200 ng/L ± 20%
30 ng/L
85�0%
94�2%
>94�2%
>94�2%
>94�2%
>94�2%
>94�2%
>94�2%
DEET
DEET
1,400 ± 20%
200 ng/L
85�71%
98�7%
>98�7%
>98�7%
>98�7%
>98�7%
>98�7%
>98�7%
Linuron
Linuron
140 ± 20%
20 ng/L
85�71%
96�6%
>96�6%
>96�6%
>96�6%
>96�6%
>96�6%
>96�6%
Carbamazepine Tegretol¹
1,400 ± 20%
200 ng/L
85�71%
98�6%
>98�6%
>98�6%
>98�6%
>98�6%
>98�6%
>98�6%
Trimethoprim
Trimethoprim
140 ± 20%
20 ng/L
85�71%
96�7%
>96�7%
>96�7%
>96�7%
>96�7%
>96�7%
>96�7%
Metolachlor
Metolachlor
1,400 ± 20%
200 ng/L
85�71%
98�6%
>98�6%
>98�6%
>98�6%
>98�6%
>98�6%
>98�6%
TCEP
TCEP
5,000 ± 20%
700 ng/L
86�0%
98�0%
>98�0%
>98�0%
>98�0%
>98�0%
>98�0%
>98�0%
TCPP
TCPP
5,000 ± 20%
700 ng/L
86�0%
97�8%
>97�8%
>97�8%
>97�8%
>97�8%
>97�8%
>97�8%
Meprobamate
Meprobamate
400 ± 20%
60 ng/L
85�0%
94�7%
>95�1%
>95�1%
>95�1%
>95�1%
>95�1%
>95�1%
1,000 and 2,000 gallon capacity is only for use with PID
NSF/ANSI Standard 401 are considered incidental contaminants and emerging compounds�
¹Dilantin is a registered trademark of Pfizer Inc� Motrin is a registered trademark of Johnson & Johnson Consumer Inc� Aleve is a registered trademark of
Bayer� Tenormin registered trademark of the AstraZeneca UK Ltd Tenormin is a registered trademark of Novartis Pharmaceuticals Corporation�