{"id":31685,"date":"2026-03-12T11:29:52","date_gmt":"2026-03-12T10:29:52","guid":{"rendered":"https:\/\/rls-wacon.de\/produkt\/caldur-carbonate-hardness-ch-5-titration\/"},"modified":"2026-03-12T11:29:52","modified_gmt":"2026-03-12T10:29:52","slug":"caldur-carbonate-hardness-ch-5-titration","status":"publish","type":"product","link":"https:\/\/rls-wacon.de\/en\/produkt\/caldur-carbonate-hardness-ch-5-titration\/","title":{"rendered":"Caldur\u00ae Carbonate hardness CH 5 &#8211; Titration"},"content":{"rendered":"<h2>CALDUR\u00ae Carbonate hardness CH 5 test set &#8211; Titration<\/h2>\n<h3>What is carbonate hardness measured for?<\/h3>\n<p>Carbonate hardness (temporary hardness) is an important parameter in water chemistry and provides information about the concentration of hydrogen carbonate and carbonate ions in the water. It is part of the total hardness and plays a decisive role in the buffering capacity of the water (pH stability). <\/p>\n<p><strong>Monitoring carbonate hardness is essential in boiler systems<\/strong>, as carbonate hardness precipitates and forms scale when heated. This impairs heat transfer and can lead to serious damage to the system. The carbonate hardness in boiler water should be as low as possible (< 0.5 \u00b0dH).  \n\nFor applications that require particularly high precision in the low hardness range, the CALDUR\u00ae CH 5 test set offers a resolution of 0.5 \u00b0dH or 0.25 \u00b0dH. This is ideal for checking softened water, boiler water and high-purity process water. \n\n\n<h3>How does the test set work?<\/h3>\n<p>The CALDUR\u00ae carbonate hardness CH 5 test set works according to the proven acid-base titration method. The hydrogen carbonate is neutralized by adding an acid solution drop by drop to a water sample with Reagent. The color changes at the equivalence point &#8211; the number of drops used corresponds directly to the carbonate hardness.  <\/p>\n<p>The method is simple, fast and provides reliable results in the measuring range from 0 to 10 \u00b0dH with a resolution of 0.5 \u00b0dH (0.25 \u00b0dH with double the sample quantity).<\/p>\n<h3>Advantages of the CALDUR\u00ae test set<\/h3>\n<ul class=\"feature-list\">\n<li>Quick analysis in just 1 minute\n<p style=\"text-indent: 30px; font-style: italic;\">Ideal for daily checks in boiler systems and softening systems &#8211; immediate results<\/p>\n<\/li>\n<li>High resolution of 0.5 \u00b0dH (or 0.25 \u00b0dH)\n<p style=\"text-indent: 30px; font-style: italic;\">Particularly precise measurement in the low hardness range<\/p>\n<\/li>\n<li>100 determinations at 5 \u00b0dH &#8211; economical in continuous use\n<p style=\"text-indent: 30px; font-style: italic;\">Cost-efficient for regular inspections in waterworks and industrial plants<\/p>\n<\/li>\n<li>Simple drop titration without aids\n<p style=\"text-indent: 30px; font-style: italic;\">No additional devices required &#8211; direct reading<\/p>\n<\/li>\n<li>Clear color change for precise results\n<p style=\"text-indent: 30px; font-style: italic;\">Clearly recognizable end point of the titration<\/p>\n<\/li>\n<li>Robust, waterproof plastic housing with hinged lid\n<p style=\"text-indent: 30px; font-style: italic;\">Safe transportation and protection of reagents<\/p>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>CALDUR\u00ae Carbonate hardness CH 5 test set &#8211; Titration What is carbonate hardness measured for? Carbonate hardness (temporary hardness) is an important parameter in water chemistry and provides information about the concentration of hydrogen carbonate and carbonate ions in the water. It is part of the total hardness and plays a decisive role in the [&hellip;]<\/p>\n","protected":false},"featured_media":31687,"template":"","meta":{"_acf_changed":false},"product_brand":[],"product_cat":[736,633,641],"product_tag":[],"class_list":{"0":"post-31685","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-alkalinity-en","7":"product_cat-testsets-caldur-en","8":"product_cat-titration-method","10":"first","11":"instock","12":"shipping-taxable","13":"purchasable","14":"product-type-variable"},"exclude_global_add_ons":[],"addons":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.6 (Yoast SEO v27.7) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>CALDUR\u00ae Carbonate hardness CH 5 test set - Titration for water<\/title>\n<meta name=\"description\" content=\"Precise carbonate hardness measurement with the CALDUR\u00ae Carbonate hardness CH 5 test set - titration. 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