{"id":2550,"date":"2022-05-11T04:33:12","date_gmt":"2022-05-11T04:33:12","guid":{"rendered":"https:\/\/idealmedical.co.za\/wp\/?post_type=product&p=2550"},"modified":"2026-01-02T09:54:31","modified_gmt":"2026-01-02T07:54:31","slug":"whatman-quantitative-filter-paper-hardened-ashless-grade-541-pack-of-100","status":"publish","type":"product","link":"https:\/\/idealmedical.co.za\/wp\/product\/whatman-quantitative-filter-paper-hardened-ashless-grade-541-pack-of-100\/","title":{"rendered":"Whatman\u00ae quantitative filter paper, hardened ashless, Grade 541 [Pack of 100]"},"content":{"rendered":"

General description<\/strong>
\nThese are the supreme hardened ashless quantitative filter papers featuring high wet strength and chemical resistance. These papers are acid hardened, which reduces ash to an extremely low level. Their tough surfaces make them suitable for a wide range of critical analytical filtration operations. Each grade offers a convenient combination of filtration speed and particle retention.<\/p>\n

Grade 541: 22 \u03bcm (fast filter paper)
\nFast filtration of coarse particles and gelatinous precipitates in acid\/alkali solutions during gravimetric analysis. Typical applications include fiber in animal foodstuffs, gelatine in milk and cream, chloride in cement, and chloride and phosphorous in coal and coke.<\/p>\n

material
\ncircles
\ncotton filters (high-quality cotton linters)<\/p>\n

packaging
\npack of 100<\/p>\n

manufacturer\/tradename
\nWhatman<\/p>\n

parameter
\n34 sec\/100 mL speed (Herzberg)
\n7 psi wet burst<\/p>\n

thickness
\n155 \u03bcm<\/p>\n

ash
\n\u22640.006%<\/p>\n

pore size
\n22 \u03bcm (Particle retention)<\/p>\n

basis weight
\n82 g\/m2<\/p>\n","protected":false},"excerpt":{"rendered":"

General description These are the supreme hardened ashless quantitative filter papers featuring high wet strength and chemical resistance. These papers are acid hardened, which reduces ash to an extremely low level. Their tough surfaces make them suitable for a wide range of critical analytical filtration operations. Each grade offers a convenient combination of filtration speed […]<\/p>\n","protected":false},"featured_media":2561,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[50],"product_tag":[],"class_list":{"0":"post-2550","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-filter-paper","8":"first","9":"instock","10":"shipping-taxable","11":"purchasable","12":"product-type-variable"},"yoast_head":"\nWhatman\u00ae quantitative filter paper, Grade 541 - ideal solutions<\/title>\n<meta name=\"description\" content=\"Whatman\u00ae quantitative filter paper, hardened ashless, Grade 541 are the supreme hardened ashless quantitative filter papers suitable for a wide range of critical analytical filtration operations. We supply these filter papers within South Africa as well as to Botswana, Lesotho, Eswatini, Zambia, Zimbabwe, Namibia\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/idealmedical.co.za\/wp\/product\/whatman-quantitative-filter-paper-hardened-ashless-grade-541-pack-of-100\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Whatman\u00ae quantitative filter paper, Grade 541 - ideal solutions\" \/>\n<meta property=\"og:description\" content=\"Whatman\u00ae quantitative filter paper, hardened ashless, Grade 541 are the supreme hardened ashless quantitative filter papers suitable for a wide range of critical analytical filtration operations. 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