I've got a question about buying replacement reagents. I went to a local store today and bought some Taylor replacement reagents for TA testing (R-0007, R-0008, and R-0009). Just for the heck of it I called Taylor and had them check the lot numbers. One of the reagents was indeed considered "fresh" according to Taylor, but the other two reagents were considered "usable", which meant that they were between 1-3 years old. Just wondering, when buying new reagents should I expect them to be considered "fresh" by Taylor's definition (under a year old), or is it pretty normal to buy new reagents and have them in the 1-3 year old "usable" range? I was considering returning the two "usable" ones because I just bought them and they're already at least a year old, but if it's fairly normal practice then I guess I won't worry about it.