Plat stands for Platinum, and the 900 indicates purity, or 90% pure.
"les plats" is translated 'the dishes' in English.
The letters plat is short for platinum.
mon plat means 'my dish' in English.
PT. 950, PT. 900, Plat. Platinum, 10% Irid. 90% Plat. All of these can be markings for platinum.
un plat à emporter is a takeaway dish in French.
PLAT engraved on the inside of the ring indicates that the ring is made of Platinum.
The general stamps for platinum jewelry are PLAT and PT.In addition, platinum jewelry is also often stamped as follows:90% pure platinum jewelry - 900 Platinum, 900 Plat, Plat 900, Pt900 or 900Pt95% pure platinum jewelry - 950 Platinum, 950 Plat, Plat 950, Pt950 or 950PtStep 8Remember that a "950 Platinum" stamp means jewelry is 95 percent pure platinum, or 950 parts out of 1000. Such jewelry may also be stamped "PLAT," "PT," "950 Plat," "Plat 950," "Pt950," or "950Pt."Read more: How to Read Jewelry Stamps or Labels | eHow.com http://www.ehow.com/how_5794103_read-jewelry-stamps-labels.html#ixzz0u1cRd1ib
favorite dish
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Plat refers to the shape and measurements of the piece of land you are placing the footprint of your house on. Plat maps show this information, usually within a neighborhood.