How do I interpret the lot numbers on Waters Oasis and Sep-Pak products? - WKB54121

ENVIRONMENT

• Lot numbers
• Sep-Pak
• Oasis
• decipher
• interpret

ANSWER

Example lot number: 008238274G

Digits 1 through 4 = Sorbent batch number (in this example, batch 82)

Digit 5 = Packing location (in this example, 3 = Wexford, Ireland)

Digit 6 = Last digit of year (in this example, 8 = 2018)

Digits 7 through 9 = Julian calendar Day of the year (in this example, 274 = Julian calendar day number 274 or 01-Oct-2018)

Digit 10 = Tub from which the bulk packing was pulled (G = tub G)

ADDITIONAL INFORMATION

It is possible that the same bulk material is divided among different physical buckets (tubs). When this happens, each tub within a lot of SPE packing is assigned a letter. In the example above, the sorbent batch 0082 was likely divided into may tubs—the first tub being tub A, the second tub B, and so on. The lot above was pulled from tub G of batch 0082.