Check out Fluid Life in Edmonton. I had called around to a few ag dealers, Cummins Western Canada and it came down to 2 labs. Fluid Life and ALS, both in Edmonton.
I went with Fluid Life, purely by chance. I had went to a local Ag store in the area and they recently came out with fluid sampling but using Fluid Life. The manager had little to say about it, other than it was new and they received a flat of sampling containers. He tossed me one for free and said try it and report back. I brought him a print out of the sample to show any future clients. I liked the lay out and just picked up another free sampling container.
Normally the test is around 25$ without TBN/TAN, which I think is 3$ extra. I paid about 13$ shipping though.