Residual hardness is a decisive parameter when monitoring water softeners and
\nion exchangers. After water softening, it must be ensured that the hardness formers
\n(calcium and magnesium) have been removed as far as possible in order to avoid limescale deposits in downstream
\nsystems. <\/p>\n
The RG 25 test set tests for a limit value of 0.25 \u00b0dH (2.5 mg\/l CaCO\u2083)<\/strong>. Regular monitoring of the residual hardness is essential in order to recognize the exhaustion status of the The CALDUR\u00ae residual hardness RG 25 test set uses the proven limit value method with a Green = residual hardness below 0.25 \u00b0dH<\/strong> – the water is sufficiently softened. This simple yes\/no determination enables an extremely quick check without time-consuming Immediate detection of whether the limit value is exceeded or not reached – ideal for frequent checks<\/p>\n<\/li>\n No drop counting, no calculation – color shows the result directly<\/p>\n<\/li>\n Ideal for low-pressure steam boilers<\/p>\n<\/li>\n Particularly economical for regular routine checks<\/p>\n<\/li>\n Clear visual differentiation without room for interpretation<\/p>\n<\/li>\n Minimal effort and no risk of confusion during implementation<\/p>\n<\/li>\n Optimum protection of reagents – suitable for every application situation<\/p>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":" CALDUR\u00ae Residual hardness test set RG 25 – Limit value method What is residual hardness measured for? Residual hardness is a decisive parameter when monitoring water softeners and ion exchangers. After water softening, it must be ensured that the hardness formers (calcium and magnesium) have been removed as far as possible in order to avoid […]<\/p>\n","protected":false},"featured_media":32624,"template":"","meta":{"_acf_changed":false},"product_brand":[],"product_cat":[638,633],"product_tag":[],"class_list":{"0":"post-32623","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-limit-value-method","7":"product_cat-testsets-caldur-en","9":"first","10":"instock","11":"shipping-taxable","12":"purchasable","13":"product-type-variable"},"exclude_global_add_ons":[],"addons":[],"acf":[],"yoast_head":"\n
\nThis limit value is particularly relevant for low-pressure steam boilers.<\/p>\n
\nion exchanger in good time and to initiate regeneration before hard water
\nenters the system.<\/p>\nHow does the test set work?<\/h3>\n
\ncolor indicator. After adding a single drop of limit value indicator to the water sample,
\nthe resulting color immediately indicates whether the residual hardness is above or below the limit value. <\/p>\n
\nRed = residual hardness above 0.25 \u00b0dH<\/strong> – the ion exchanger must be regenerated.<\/p>\n
\ncalculations or color comparisons.<\/p>\nAdvantages of the CALDUR\u00ae test set<\/h3>\n
\n