Operational Qualification (OQ) tests whether the equipment operates correctly within its specified ranges. Performance Qualification (PQ) verifies that the equipment performs as intended under actual production conditions, meeting user requirements. Most teams understand the definitions. Welcome to EEC's Professional Qualifications Registry (PQ Registry). Educators working in programs serving children from birth through school age, regardless of setting, can create an individual educator profile in the PQ Registry. PQ is a global leader in silicates and silicas with worldwide reach complemented by strong local presence on five continents. We pride ourselves on helping customers solve complex challenges using our technical expertise, rich history and our global network. Log in to your PQ Profile to see your results and continue your journey. Make a statement of sophistication with our designer new arrivals. Discover the latest in luxurious swim and resort wear fashion. POV: your favorite bikini made it into every camera roll from the trip. Pink and green stripes, a sleek strapless fit, and the kind of one piece that instantly puts you in vacation mode. Handwoven texture, sunlit green, and the signature details that make every suit feel one of a kind. Your PQ (Positive Intelligence Quotient) Score measures your mental fitness. It shows the percentage of time your mind acts as your friend rather than your enemy. PQ is a leading global provider of silicates, silicas and derivative products. PQ’s products are used in a wide variety of industrial processes and many customer products, from decorative paints to green cement, from clean drinking water to green tires and from toothpaste to biofuels and beer. Premium automotive performance parts and accessories. Find the latest selection of PQ SWIM in-store or online at Nordstrom. Shipping is always free and returns are accepted at any location. In-store pickup and alterations services available.