NSF Product and Service Listings

These NSF Official Listings are current as of Thursday, January 15, 2026 at 12:15 a.m. Eastern Time. Please contact NSF to confirm the status of any Listing, report errors, or make suggestions.

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Symphony Environmental Ltd 
6 Elstree Gate, Elstree Way, Borehamwood
Hertfordshire 
WD6 1JD 
United Kingdom 
4402082075900


Facility : Kaoshiung, Taiwan
Trade Designation      

Potable Water Materials
d2p 97041/D for Pipes      
d2p 97051/D for Pipes      
d2p 97941/D for Pipes       

[1] Use of this masterbatch in NSF Certified Product requires NSF's prior authorization.
[2] Ingredient complies with NSF/ANSI/CAN 61 health effects requirements when tested at 73°
    F in PP material.
[3] Approved for a maximum use level of 1% in PP water contact material with a Pipe &
    Fitting end use application. Use of this ingredient in NSF Certified products requires
    prior authorization from NSF.
[4] Ingredient complies with NSF/ANSI/CAN 61 health effects requirements when tested at 73°
    F in PVC material.
[5] Maximum use level is 1% for Pipe & Fitting end use.
[6] Ingredient complies with NSF/ANSI/CAN 61 health effects requirements when tested at 180°
    F in PE material.

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Number of matching Products is 3
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