I just bought several 121 fl oz Clorox Concentrated Germicidal Bleach ("8.3%"). The date code is "H3 16144 IL-1." To me this doesn't quite match the format posted on TFP several years ago (found while searching). In the store, I saw the "16," and assumed that was year of manufacture with "144" being the Julian component. But at home I searched TFP and found posts stating the third character (i.e., "1") indicates 2011 as the date of manufacture.
Did I buy really old bleach, or has Clorox changed their coding system?