Glossary Index

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P
PI

Pro Forma Invoice
Proforma Invoice

 A pro forma document is provided in advance of an actual transaction. Such a document serves as a model for the actual documents of the transaction. A pro forma (or proforma) invoice is a document that states a commitment from the seller to sell goods to the buyer at specified prices and terms. It is used to declare the value of the trade. It is not a true invoice, because it is not used to record accounts receivable for the seller and accounts payable for the buyer.
PIND Testing

Particle Impact Noise Detection Testing

A nondestructive technique which uses controlled vibration and shock to detect loose particles in cavity devices (See MIL-STD-202, Test Method 217, or MIL-STD-750, Test Method 2052, or MIL-STD-883, Test Method 2020).