Bleach/Liquid Chlorine starts decomposing after it is manufactured. See the Breakdown of Bleach Over Time by Storage Temp table. Note that decomposition occurs faster for higher strength chlorine and faster at higher storage temperatures.
Bleach/Liquid Chlorine Date Code Decoder
[1]Here is a Julian Date chart.
- Home Depot HDX Chlorine Date Decoder - 18 100 = year 18 and 100 days in so April 10th 2018.
- Clorox - A5 13 183 TX-1 08:41 (Day 183 of 2013) = year 2013 day 183[2]
- Walmart Great Value - 14 183 11:03 B1 = year 2014 day 183
- Walmart White Cloud - 14 144 12L59 B2 TX-01 = year 2014 day 144
- Smart(Home Depot) - 34713FL07:30 = year 2013 day 347
- HTH Liquid Chlorinator - 14JA0366B 11:15 = year 2014 day 366
- Kem-Tek - 1416210:25C = year 2014 day 162
- Dollar General - 14 169 02:59 B2 TX-01 = year 2014 day 169
- Online Packaging Inc - BB 07/01/15 (Date of Manufacture is 1 year prior to the "Best By:" date.) In this case Manufactured date is 07/01/2014.
- Blue Whale Shock Chlorinator - xxYYDDDhhmm
- HASA Classic Bleach - E1257 = 125th day of 2017[3]
- FSTI brand 12.5% bleach - 6c170151034 = year 2017 day 015[4]
.
- ↑ https://www.troublefreepool.com/threads/chlorine-date-code-decoder-easy-way-to-measure-strength.83147/
- ↑ https://www.clorox.com/how-to/laundry-basics/bleach-101/clorox-regular-bleach-should-be-replaced-every-year-and-stored-as-directed-for-optimum-performance/
- ↑ https://www.troublefreepool.com/threads/know-this-bleach-date-code.144477/
- ↑ https://www.troublefreepool.com/threads/fsti-brand-bleach-date-code.132749/
