{"title":"Grades 454\/540-Whatman","description":"\u003cp\u003eGrades 454\/540-Whatman\u003c\/p\u003e","products":[{"product_id":"whatman-grade-540-quantitative-ashless-filter-paper-medium-precipitates-retained-4-25-cm","title":"Whatman Grade 540 Quantitative Ashless Filter Paper, Medium Precipitates Retained, 4.25 cm","description":"\u003cp id=\"overview\" class=\"lead-paragraph\"\u003eCytiva's Whatman Grade 540 is a high-purity, acid-treated cellulose lab filter paper. Mechanically strong Grade 540 is well suited for quantitative or gravimetric analysis of strongly acidic or alkaline samples.\u003c\/p\u003e\n\u003cp class=\"lead-paragraph\"\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAcid-treated for high wet-strength\u003c\/li\u003e\n\u003cli\u003eExtremely low ash content (0.006% ash maximum)\u003c\/li\u003e\n\u003cli\u003eNominal particle retention of 8 µm\u003c\/li\u003e\n\u003cli\u003eMedium flow rate (Herzberg filtration speed 200 s)\u003c\/li\u003e\n\u003cli\u003eHigh chemical resistance to strong acid and alkali suspensions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"rte-wrapper\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eCytiva's business offers hardened ashless filter paper for a variety of precipitate sizes. Along with general filtration Grade 540, the range includes \u003cspan\u003eGrade 542\u003c\/span\u003e for retention of fine precipitates and \u003cspan\u003eGrade 541\u003c\/span\u003e for fast filtration. All three grades are designed for use in gravimetric analysis.\u003c\/p\u003e\n\u003cdiv class=\"read-more-expandable\"\u003e\n\u003ch2\u003eGravimetric analysis of acid and alkali suspensions\u003c\/h2\u003e\n\u003cp\u003eCytiva's hardened, ashless Grade 540 lab filter paper is frequently used as a gravimetric filter during analysis of metals in acidic or alkaline solutions and in the collection of hydroxides. The acid-treated surface prevents tearing during filtration and allows the user to scrape precipitates from the paper.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Cytiva","offers":[{"title":"PK (1)","offer_id":51110954041659,"sku":"90-7506-01-PK","price":41.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/2041\/6571\/files\/90-7506-01.png?v=1784705395"},{"product_id":"whatman-grade-540-quantitative-ashless-filter-paper-medium-precipitates-retained-5-5-cm","title":"Whatman Grade 540 Quantitative Ashless Filter Paper, Medium Precipitates Retained, 5.5 cm","description":"\u003cp id=\"overview\" class=\"lead-paragraph\"\u003eCytiva's Whatman Grade 540 is a high-purity, acid-treated cellulose lab filter paper. Mechanically strong Grade 540 is well suited for quantitative or gravimetric analysis of strongly acidic or alkaline samples.\u003c\/p\u003e\n\u003cp class=\"lead-paragraph\"\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAcid-treated for high wet-strength\u003c\/li\u003e\n\u003cli\u003eExtremely low ash content (0.006% ash maximum)\u003c\/li\u003e\n\u003cli\u003eNominal particle retention of 8 µm\u003c\/li\u003e\n\u003cli\u003eMedium flow rate (Herzberg filtration speed 200 s)\u003c\/li\u003e\n\u003cli\u003eHigh chemical resistance to strong acid and alkali suspensions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"rte-wrapper\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eCytiva's business offers hardened ashless filter paper for a variety of precipitate sizes. Along with general filtration Grade 540, the range includes \u003cspan\u003eGrade 542\u003c\/span\u003e for retention of fine precipitates and \u003cspan\u003eGrade 541\u003c\/span\u003e for fast filtration. All three grades are designed for use in gravimetric analysis.\u003c\/p\u003e\n\u003cdiv class=\"read-more-expandable\"\u003e\n\u003ch2\u003eGravimetric analysis of acid and alkali suspensions\u003c\/h2\u003e\n\u003cp\u003eCytiva's hardened, ashless Grade 540 lab filter paper is frequently used as a gravimetric filter during analysis of metals in acidic or alkaline solutions and in the collection of hydroxides. The acid-treated surface prevents tearing during filtration and allows the user to scrape precipitates from the paper.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Cytiva","offers":[{"title":"PK (1)","offer_id":51110954107195,"sku":"90-7506-02-PK","price":45.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/2041\/6571\/files\/90-7506-02.png?v=1784705397"},{"product_id":"whatman-grade-540-quantitative-ashless-filter-paper-medium-precipitates-retained-7-cm","title":"Whatman Grade 540 Quantitative Ashless Filter Paper, Medium Precipitates Retained, 7 cm","description":"\u003cp id=\"overview\" class=\"lead-paragraph\"\u003eCytiva's Whatman Grade 540 is a high-purity, acid-treated cellulose lab filter paper. Mechanically strong Grade 540 is well suited for quantitative or gravimetric analysis of strongly acidic or alkaline samples.\u003c\/p\u003e\n\u003cp class=\"lead-paragraph\"\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAcid-treated for high wet-strength\u003c\/li\u003e\n\u003cli\u003eExtremely low ash content (0.006% ash maximum)\u003c\/li\u003e\n\u003cli\u003eNominal particle retention of 8 µm\u003c\/li\u003e\n\u003cli\u003eMedium flow rate (Herzberg filtration speed 200 s)\u003c\/li\u003e\n\u003cli\u003eHigh chemical resistance to strong acid and alkali suspensions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"rte-wrapper\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eCytiva's business offers hardened ashless filter paper for a variety of precipitate sizes. Along with general filtration Grade 540, the range includes \u003cspan\u003eGrade 542\u003c\/span\u003e for retention of fine precipitates and \u003cspan\u003eGrade 541\u003c\/span\u003e for fast filtration. All three grades are designed for use in gravimetric analysis.\u003c\/p\u003e\n\u003cdiv class=\"read-more-expandable\"\u003e\n\u003ch2\u003eGravimetric analysis of acid and alkali suspensions\u003c\/h2\u003e\n\u003cp\u003eCytiva's hardened, ashless Grade 540 lab filter paper is frequently used as a gravimetric filter during analysis of metals in acidic or alkaline solutions and in the collection of hydroxides. The acid-treated surface prevents tearing during filtration and allows the user to scrape precipitates from the paper.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Cytiva","offers":[{"title":"PK (1)","offer_id":51110954172731,"sku":"90-7506-03-PK","price":35.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/2041\/6571\/files\/90-7506-03_3478f173-5231-409f-ab1a-632c46e76fb4.png?v=1784705398"},{"product_id":"whatman-grade-540-quantitative-ashless-filter-paper-medium-precipitates-retained-9-cm","title":"Whatman Grade 540 Quantitative Ashless Filter Paper, Medium Precipitates Retained, 9 cm","description":"\u003cp id=\"overview\" class=\"lead-paragraph\"\u003eCytiva's Whatman Grade 540 is a high-purity, acid-treated cellulose lab filter paper. Mechanically strong Grade 540 is well suited for quantitative or gravimetric analysis of strongly acidic or alkaline samples.\u003c\/p\u003e\n\u003cp class=\"lead-paragraph\"\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAcid-treated for high wet-strength\u003c\/li\u003e\n\u003cli\u003eExtremely low ash content (0.006% ash maximum)\u003c\/li\u003e\n\u003cli\u003eNominal particle retention of 8 µm\u003c\/li\u003e\n\u003cli\u003eMedium flow rate (Herzberg filtration speed 200 s)\u003c\/li\u003e\n\u003cli\u003eHigh chemical resistance to strong acid and alkali suspensions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"rte-wrapper\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eCytiva's business offers hardened ashless filter paper for a variety of precipitate sizes. Along with general filtration Grade 540, the range includes \u003cspan\u003eGrade 542\u003c\/span\u003e for retention of fine precipitates and \u003cspan\u003eGrade 541\u003c\/span\u003e for fast filtration. All three grades are designed for use in gravimetric analysis.\u003c\/p\u003e\n\u003cdiv class=\"read-more-expandable\"\u003e\n\u003ch2\u003eGravimetric analysis of acid and alkali suspensions\u003c\/h2\u003e\n\u003cp\u003eCytiva's hardened, ashless Grade 540 lab filter paper is frequently used as a gravimetric filter during analysis of metals in acidic or alkaline solutions and in the collection of hydroxides. The acid-treated surface prevents tearing during filtration and allows the user to scrape precipitates from the paper.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Cytiva","offers":[{"title":"PK (1)","offer_id":51110954205499,"sku":"90-7506-04-PK","price":76.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/2041\/6571\/files\/90-7506-04_60307bd5-9c46-4cd2-b3be-b692d5727c6a.png?v=1784705400"},{"product_id":"whatman-grade-540-quantitative-ashless-filter-paper-medium-precipitates-retained-11-cm","title":"Whatman Grade 540 Quantitative Ashless Filter Paper, Medium Precipitates Retained, 11 cm","description":"\u003cp id=\"overview\" class=\"lead-paragraph\"\u003eCytiva's Whatman Grade 540 is a high-purity, acid-treated cellulose lab filter paper. Mechanically strong Grade 540 is well suited for quantitative or gravimetric analysis of strongly acidic or alkaline samples.\u003c\/p\u003e\n\u003cp class=\"lead-paragraph\"\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAcid-treated for high wet-strength\u003c\/li\u003e\n\u003cli\u003eExtremely low ash content (0.006% ash maximum)\u003c\/li\u003e\n\u003cli\u003eNominal particle retention of 8 µm\u003c\/li\u003e\n\u003cli\u003eMedium flow rate (Herzberg filtration speed 200 s)\u003c\/li\u003e\n\u003cli\u003eHigh chemical resistance to strong acid and alkali suspensions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"rte-wrapper\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eCytiva's business offers hardened ashless filter paper for a variety of precipitate sizes. Along with general filtration Grade 540, the range includes \u003cspan\u003eGrade 542\u003c\/span\u003e for retention of fine precipitates and \u003cspan\u003eGrade 541\u003c\/span\u003e for fast filtration. All three grades are designed for use in gravimetric analysis.\u003c\/p\u003e\n\u003cdiv class=\"read-more-expandable\"\u003e\n\u003ch2\u003eGravimetric analysis of acid and alkali suspensions\u003c\/h2\u003e\n\u003cp\u003eCytiva's hardened, ashless Grade 540 lab filter paper is frequently used as a gravimetric filter during analysis of metals in acidic or alkaline solutions and in the collection of hydroxides. The acid-treated surface prevents tearing during filtration and allows the user to scrape precipitates from the paper.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Cytiva","offers":[{"title":"PK (1)","offer_id":51110954271035,"sku":"90-7506-05-PK","price":91.37,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/2041\/6571\/files\/90-7506-05.png?v=1784705401"},{"product_id":"whatman-grade-540-quantitative-ashless-filter-paper-medium-precipitates-retained-12-5-cm","title":"Whatman Grade 540 Quantitative Ashless Filter Paper, Medium Precipitates Retained, 12.5 cm","description":"\u003cp id=\"overview\" class=\"lead-paragraph\"\u003eCytiva's Whatman Grade 540 is a high-purity, acid-treated cellulose lab filter paper. Mechanically strong Grade 540 is well suited for quantitative or gravimetric analysis of strongly acidic or alkaline samples.\u003c\/p\u003e\n\u003cp class=\"lead-paragraph\"\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAcid-treated for high wet-strength\u003c\/li\u003e\n\u003cli\u003eExtremely low ash content (0.006% ash maximum)\u003c\/li\u003e\n\u003cli\u003eNominal particle retention of 8 µm\u003c\/li\u003e\n\u003cli\u003eMedium flow rate (Herzberg filtration speed 200 s)\u003c\/li\u003e\n\u003cli\u003eHigh chemical resistance to strong acid and alkali suspensions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"rte-wrapper\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eCytiva's business offers hardened ashless filter paper for a variety of precipitate sizes. Along with general filtration Grade 540, the range includes \u003cspan\u003eGrade 542\u003c\/span\u003e for retention of fine precipitates and \u003cspan\u003eGrade 541\u003c\/span\u003e for fast filtration. All three grades are designed for use in gravimetric analysis.\u003c\/p\u003e\n\u003cdiv class=\"read-more-expandable\"\u003e\n\u003ch2\u003eGravimetric analysis of acid and alkali suspensions\u003c\/h2\u003e\n\u003cp\u003eCytiva's hardened, ashless Grade 540 lab filter paper is frequently used as a gravimetric filter during analysis of metals in acidic or alkaline solutions and in the collection of hydroxides. The acid-treated surface prevents tearing during filtration and allows the user to scrape precipitates from the paper.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Cytiva","offers":[{"title":"PK (1)","offer_id":51110954402107,"sku":"90-7506-06-PK","price":105.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/2041\/6571\/files\/90-7506-06.png?v=1784705403"},{"product_id":"whatman-grade-540-quantitative-ashless-filter-paper-medium-precipitates-retained-15-cm","title":"Whatman Grade 540 Quantitative Ashless Filter Paper, Medium Precipitates Retained, 15 cm","description":"\u003cp id=\"overview\" class=\"lead-paragraph\"\u003eCytiva's Whatman Grade 540 is a high-purity, acid-treated cellulose lab filter paper. Mechanically strong Grade 540 is well suited for quantitative or gravimetric analysis of strongly acidic or alkaline samples.\u003c\/p\u003e\n\u003cp class=\"lead-paragraph\"\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAcid-treated for high wet-strength\u003c\/li\u003e\n\u003cli\u003eExtremely low ash content (0.006% ash maximum)\u003c\/li\u003e\n\u003cli\u003eNominal particle retention of 8 µm\u003c\/li\u003e\n\u003cli\u003eMedium flow rate (Herzberg filtration speed 200 s)\u003c\/li\u003e\n\u003cli\u003eHigh chemical resistance to strong acid and alkali suspensions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"rte-wrapper\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eCytiva's business offers hardened ashless filter paper for a variety of precipitate sizes. Along with general filtration Grade 540, the range includes \u003cspan\u003eGrade 542\u003c\/span\u003e for retention of fine precipitates and \u003cspan\u003eGrade 541\u003c\/span\u003e for fast filtration. All three grades are designed for use in gravimetric analysis.\u003c\/p\u003e\n\u003cdiv class=\"read-more-expandable\"\u003e\n\u003ch2\u003eGravimetric analysis of acid and alkali suspensions\u003c\/h2\u003e\n\u003cp\u003eCytiva's hardened, ashless Grade 540 lab filter paper is frequently used as a gravimetric filter during analysis of metals in acidic or alkaline solutions and in the collection of hydroxides. The acid-treated surface prevents tearing during filtration and allows the user to scrape precipitates from the paper.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Cytiva","offers":[{"title":"PK (1)","offer_id":51110954467643,"sku":"90-7506-07-PK","price":148.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/2041\/6571\/files\/90-7506-07.png?v=1784705405"},{"product_id":"whatman-grade-540-quantitative-ashless-filter-paper-medium-precipitates-retained-18-5-cm","title":"Whatman Grade 540 Quantitative Ashless Filter Paper, Medium Precipitates Retained, 18.5 cm","description":"\u003cp id=\"overview\" class=\"lead-paragraph\"\u003eCytiva's Whatman Grade 540 is a high-purity, acid-treated cellulose lab filter paper. Mechanically strong Grade 540 is well suited for quantitative or gravimetric analysis of strongly acidic or alkaline samples.\u003c\/p\u003e\n\u003cp class=\"lead-paragraph\"\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAcid-treated for high wet-strength\u003c\/li\u003e\n\u003cli\u003eExtremely low ash content (0.006% ash maximum)\u003c\/li\u003e\n\u003cli\u003eNominal particle retention of 8 µm\u003c\/li\u003e\n\u003cli\u003eMedium flow rate (Herzberg filtration speed 200 s)\u003c\/li\u003e\n\u003cli\u003eHigh chemical resistance to strong acid and alkali suspensions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"rte-wrapper\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eCytiva's business offers hardened ashless filter paper for a variety of precipitate sizes. Along with general filtration Grade 540, the range includes \u003cspan\u003eGrade 542\u003c\/span\u003e for retention of fine precipitates and \u003cspan\u003eGrade 541\u003c\/span\u003e for fast filtration. All three grades are designed for use in gravimetric analysis.\u003c\/p\u003e\n\u003cdiv class=\"read-more-expandable\"\u003e\n\u003ch2\u003eGravimetric analysis of acid and alkali suspensions\u003c\/h2\u003e\n\u003cp\u003eCytiva's hardened, ashless Grade 540 lab filter paper is frequently used as a gravimetric filter during analysis of metals in acidic or alkaline solutions and in the collection of hydroxides. The acid-treated surface prevents tearing during filtration and allows the user to scrape precipitates from the paper.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Cytiva","offers":[{"title":"PK (1)","offer_id":51110954500411,"sku":"90-7506-08-PK","price":219.32,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/2041\/6571\/files\/90-7506-08.png?v=1784705410"},{"product_id":"whatman-grade-540-quantitative-ashless-filter-paper-medium-precipitates-retained-24-cm","title":"Whatman Grade 540 Quantitative Ashless Filter Paper, Medium Precipitates Retained, 24 cm","description":"\u003cp id=\"overview\" class=\"lead-paragraph\"\u003eCytiva's Whatman Grade 540 is a high-purity, acid-treated cellulose lab filter paper. Mechanically strong Grade 540 is well suited for quantitative or gravimetric analysis of strongly acidic or alkaline samples.\u003c\/p\u003e\n\u003cp class=\"lead-paragraph\"\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAcid-treated for high wet-strength\u003c\/li\u003e\n\u003cli\u003eExtremely low ash content (0.006% ash maximum)\u003c\/li\u003e\n\u003cli\u003eNominal particle retention of 8 µm\u003c\/li\u003e\n\u003cli\u003eMedium flow rate (Herzberg filtration speed 200 s)\u003c\/li\u003e\n\u003cli\u003eHigh chemical resistance to strong acid and alkali suspensions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"rte-wrapper\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eCytiva's business offers hardened ashless filter paper for a variety of precipitate sizes. Along with general filtration Grade 540, the range includes \u003cspan\u003eGrade 542\u003c\/span\u003e for retention of fine precipitates and \u003cspan\u003eGrade 541\u003c\/span\u003e for fast filtration. All three grades are designed for use in gravimetric analysis.\u003c\/p\u003e\n\u003cdiv class=\"read-more-expandable\"\u003e\n\u003ch2\u003eGravimetric analysis of acid and alkali suspensions\u003c\/h2\u003e\n\u003cp\u003eCytiva's hardened, ashless Grade 540 lab filter paper is frequently used as a gravimetric filter during analysis of metals in acidic or alkaline solutions and in the collection of hydroxides. The acid-treated surface prevents tearing during filtration and allows the user to scrape precipitates from the paper.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Cytiva","offers":[{"title":"PK (1)","offer_id":51110954565947,"sku":"90-7506-09-PK","price":336.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/2041\/6571\/files\/90-7506-09.png?v=1784705411"},{"product_id":"filter-paper-quantitative-grade-454-11-cm-package-of-100","title":"Filter Paper, Quantitative, Grade 454, 11 cm (Package of 100)","description":"\u003cp\u003eUse for retention of zirconium hydroxide, aluminum hydroxide, cobalt sulfide, and other coarse or gelatinous precipitates.\u003c\/p\u003e \u003cp\u003e \u003c\/p\u003e","brand":"Others","offers":[{"title":"PK (1)","offer_id":51111684440379,"sku":"V-28306-110-PK","price":88.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/2041\/6571\/files\/V-28306-110.png?v=1784722222"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/2041\/6571\/collections\/imgi_6_802070805.jpg?v=1762207584","url":"https:\/\/preiser.com\/collections\/grades-454-540-whatman.oembed","provider":"Preiser Scientific","version":"1.0","type":"link"}