Benchmarking a possibly-expired test kit

[FormerBromineUser]

As for knowing which are bad, did you check the link I gave you from Taylor?
You might want to call some pool stores around you and see if they carry them. Here in the US, it's so easy...

[Whetstone613]

Somehow I missed the Taylor link. As for the reagents that were specifically discussed: they all seem to be in good condition. However, half the reagents I have weren't discussed. One of them was R-0001 and you said you think my chlorine-testing reagents were expired.
I called my local pool store and they say they have everything I need, but I wonder if they have the exact same thing. Some of these reagents have very picky sounding names like "R-0007 THIOSOLFATE N/10". Are they as picky as they sound?

[FormerBromineUser]

Yes, some reagents can be of different concentrations. Find out exactly what the pool store has, and then do some research on Taylor's site to see if they say what the equivalents are. You really can't mix and match some of them as they are calibrated to work at the correct strengths.

Here is the original link I gave you on checking reagents: http://www.taylortechnologies.com/Ch...SP?ContentID=2

This might help. It's a search for reagents: http://www.taylortechnologies.com/pr...nts_search.asp

[Whetstone613]

Actually, the link you gave me the first time worked. This time it just abbreviated it or something (that autocorrect acting up again?)
Ok, I just went to look at the specs for R-0007 and holy frijoles... it gave me

A = .75 oz (22 mL), A-24 = .75 oz (24 pack), A144 = .75 oz (144 pack), B = 2 oz (60 mL, wide-mouth),
C = 2 oz (60 mL), C-12 = 2 oz (12 pack), D = 4 oz, DD = 8 oz, DB = dropper bottle, E = 16 oz, F = 32 oz,
F4 = 32 oz (4 pack), G = gal, G4 = gal (4 pack), H = 25 g, I = 10 g, II = 50 g, J = .25 lb, K = 1 lb,
Z = 1,000 pack, Z-10 = 10,000 pack, Z-50 = 50,000 pack

Is this what I asked for from the pool store guy?

[FormerBromineUser]

Is your current bottle labelled R-0007? If so, then those are just different quantities of the same concentration. You want A, C, or D; 0.75oz, 2oz, and 4oz respectively.
The cost goes down as the quantity goes up, just like most product packaging. It boils down to what the pool store carries as Taylor is tough to get in Canada. Make sure they have TAYLOR R-0007.

[Whetstone613]

Yes, one of them is "R-0007 THIOSOLFATE N/10". Since but I don't usually use half of a bottle in one season, I might as well get the smallest. As for the concentration: if it's Taylor, it's the right concentration and if it isn't, it's anybody's guess?

[FormerBromineUser]

You are good if they have TAYLOR R-0007. If they are Taylor reagents and the numbers match, you are good. The letters after R-0007A or R-0007C are just the size designation.