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The assigned value presented on the Certificate of Analysis for these compounds is the total isomer concentration. This product is a replacement for PFAS Drinking Water and PFAS Ground Water and Surface Water: 960 (PT), 735 (CRM), 735QR (QR), 929 (PT), 731 (CRM) and 731QR (QR).\u003c\/p\u003e","brand":"ERA","offers":[{"title":"Default Title","offer_id":56281467355513,"sku":"976","price":146.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0296\/2155\/1241\/files\/2000_fbb38649-c545-4470-b1f1-9604a4a2300c.jpg?v=1764261183"},{"product_id":"pcb-congeners-in-wastewater-wp-pt","title":"PCB Congeners in Wastewater, WP PT","description":"\u003cp\u003eOne 2 mL flame-sealed ampule yields in excess of 2 L after dilution. The diluted standard is certified for 18 analytes spiked at 1 � 20 ng\/L. The sample is designed for GC\/MS for analyzing wastewater, specifically EPA Method 1668 and EPA Method 1628.\u003c\/p\u003e","brand":"ERA","offers":[{"title":"Default Title","offer_id":56281472008569,"sku":"2685","price":354.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0296\/2155\/1241\/files\/2000_dff1b51d-c50e-48ff-b814-234b252f4fe8.jpg?v=1764261251"},{"product_id":"pcb-congeners-in-soil-soil-pt","title":"PCB Congeners in Soil, Soil PT","description":"\u003cp\u003eOne flame-sealed ampule containing 10 g of soil. The standard is certified for 18 analytes spiked at 2 � 20 ug\/kg. 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Designed for the Ohio VAP program.\u003c\/p\u003e","brand":"ERA","offers":[{"title":"Default Title","offer_id":56281473417593,"sku":"4990","price":105.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0296\/2155\/1241\/files\/2000_b7619099-7e38-4e60-b038-9e1c3b41e97b.jpg?v=1764261269"},{"product_id":"color-ws-pt","title":"Color, WS PT","description":"\u003cp\u003eOne 30 mL screw-cap bottle yields up to 200 mL after dilution. This product is a replacement for 859 (PT), 661 (CRM), 661QR (QR).\u003c\/p\u003e","brand":"ERA","offers":[{"title":"Default Title","offer_id":56281485508985,"sku":"859C","price":113.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0296\/2155\/1241\/files\/2000_b26c9993-3986-46b1-8f74-b28013789779.jpg?v=1764261451"},{"product_id":"color-wp-pt","title":"Color, WP PT","description":"\u003cp\u003eOne 30 mL screw-cap bottle yields up to 200 mL after dilution. Use with EPA Methods 110.1, 110.2, and 110.3, Standard Methods 2120B, 2120C, 2120E, or other applicable method. This product is a replacement for 882 (PT), 070 (CRM), 070QR (QR).\u003c\/p\u003e","brand":"ERA","offers":[{"title":"Default Title","offer_id":56281485541753,"sku":"882C","price":113.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0296\/2155\/1241\/files\/2000_4d57807e-82a0-49ee-b28b-52652ec7e65f.jpg?v=1764261451"}],"url":"https:\/\/esslabshop.com\/collections\/waters%e2%84%a2-era-pt-schemes.oembed?page=2","provider":"ESSLAB","version":"1.0","type":"link"}