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. Log in to your PQ Profile to see your results and continue your journey. We are a 200 plus year old leading global provider of silicates, silicas & derivative products that enable environmental improvements, enhance consumer products, and increase personal safety. Look up PQ or pq in Wiktionary, the free dictionary. This disambiguation page lists articles associated with the title PQ. If an internal link incorrectly led you here, you may wish to change the link to point directly to the intended article. Choose from a range of one-piece swimsuits, bikini styles, and bridal bikini options for any water adventure or poolside cabana. Embrace swimwear that fits your unique style and shows your confidence with our diverse range of swimwear. PQ Swim designs luxury women's swimwear and resortwear. Hand-finished lace bikinis, one-piece swimsuits, cover-ups, and editorial pieces made for the Palm Queen. 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. 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. Known for signature ruffle details, textured fabrics, and richly pigmented prints, every PQ piece is finished with the kind of detail that elevates a bikini from beachwear to a wardrobe centerpiece. 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.