Last year after reading this forum I went and bought a HTH 6 way test kit to tide me over till I got a better one. Since it was late in the season, I put that off till this year. Last years HTH CYA test put me in the 90's. I replaced about a third of my water this year. I ordered more CYA reagent R-0013 and today's test shows less than 30. I went with a start up shock based on an approximation range of 60 CYA. Looks like I hammered the bejesus out of my pool with bleach. No problems though, water looks great, no liner fade and today's test:

FC=10
CC=0

I used the HTH comparator tube and mixing bottle (7 ml of pool water and 7 ml of reagent) with the new reagent R-0013.

My question, is this reagent a standard strength and is it compatible with the HTH mixing bottle volume and the volume vs.height of the HTH comparator tube?