Reading Lot Numbers on Puritan Products brand Chemicals
All Puritan Products brand chemicals have lot numbers containing 11 digits.
- The first four digits of the lot number are the product code
- The next three digits of the lot number represent the Julian date
- The next two digits represent the last two digits of the year
- The last two digits represent the sequence of lot numbers assigned that day
Lot Number Example
|Product Code||Julian Date||Year||Lot Sequence|
The example lot number above is for Sulfuric Acid, 95-97% ElectroPUR™ SEMI that was packaged on May 7, 2015 and it was the first product that was assigned a lot number that day.