Lot/Batch Numbering System
Procedures are established for assigning and applying standard lot numbers (also referred to as batch numbers) to all caustic soda solution produced in Dow’s Chlor-Alkali manufacturing facilities. Lot numbers are used to assure that individual production batches of material can be traced from the time of production through final sale to the customer. A typical lot number will provide information on the year, month, date (day of the month), geographic region, plant facility and specific storage tank of the lotted caustic soda solution.
| Caustic Soda Batch Numbering System Codes |
|
Year Code (Digit 1) is coded to the following sequence:
T is used for 2005
U is used for 2006
V is used for 2007
W is used for 2008
X is used for 2009
Y is used for 2010
|
Month Code (Digit 2) is coded to the following sequence:
A = January
B = February
C = March
D = April
> E = May
F = June
G = July
H = August
I = September
J = October
K = November
L = December |
| Day of Month (Digits 3 and 4) are coded from 01-31 |
Dow Geographic Location (Digits 5 and 6) are coded by:
01 = Dow Chemical USA
02 = Dow Chemical Canada |
Facility Location (Digits 7 and 8)
XX = North American Facility Location |
Specific Tank Code Number (Digits 9 and 10)
YY = Specific Tank Code Number |
Example A: UJ1901XXYY (2006, October 19: Dow Chemical USA)
U = 2006
J = October
19 = 19th Day
01 = Dow Chemical USA
XX = North American Facility Location
YY = Specific Tank Code Number |
