The lot and block survey system is a method used in the United States and Canada to locate and identify land, particularly for lots in densely populated metropolitan areas, suburban areas and exurbs.It is sometimes referred to as the recorded plat survey system or the recorded map survey system. Color names are consistent from plant to plant and each plant has an internally controlled list of unique codes that define the color of the specific shingles. This day represents the day the material was received. The plat shows individual lots in the subdivision, along with other required elements, such as … These are numbers represented in a date format that are used to provide a guideline for consumers so they … It is for the factories production quality control and tracing purposes. It is an essential part of the markings, and is required for record keeping. If the description is using townships and then refers to a "lot," this is a government lot. Many products might have a closed code as well as an open-date code. Lot numbers… are used by manufacturers to keep track of production runs and color information. Example: Lot year 40 is 2000. according to pertinent specifications. When writing or reading a large number, begin at the left with the largest group, and proceed to the right. The next three digits are the Julian day. Lot Number. The lot year is offset by 60. Correction sections are included. An 8 digit lot number is assigned to products filled from bulk where the same lot of material may be used for other fills. Date code: There are 3 different date code format on our relays: You may see one of the below codes on your product ‏ (s). Subdivision plat: Referring to recorded lot numbers. Numbers are separated into groups: ones, tens, hundreds, thousands, millions, and so on. (Lot year 42 is 2002, etc.) The date is contained in a LL## group, where L is a letter and # a number, making up or included in the lot number impressed into the box tab. For instance, 7,482 is read as seven thousand, four hundred, eighty-two. purposes, for preparing reports on the serviceability and functioning of the ammunition, and for reporting. The lot number identifies an item constructed. He has determined that Winchester ammo lot numbers on the boxes have included the manufacture date encoded within. How to read the date code on a relay Introduction: Date code / lot number is the number to identify when the component is being manufactured. Read the actual deed description. Each group contains three subgroups: ones, tens, and hundreds. For example, if a code reads “D1519,” that means April 15, 2019. Read the numbers after the letter as the date of the month and the year in which the item was produced. 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