AFA Kitchen Sinks are tested as per: CSA B45.4-02 Stainless Steel Plumbing Fixtures.

B45.0-02 General Requirements for Plumbing Fixtures:

 1.   Materials
 2.   Surface Finish
 3.   Quality of Work
 4.   Dimensional Tolerances
 5.   Slope on Bottom of Fixtures
 6.   Warpage
 7.   Openings and Flat Areas for Supply Fittings
 8.   Deck Mounted Supply Punchings
 9.   Back to Front Dimension
10.  Basket Strainer Accommodation
11.  Concealed Overflow
12.  Metal Thickness 
13.  Material type
14.  Finish