{"id":40051,"date":"2026-01-13T16:02:45","date_gmt":"2026-01-13T16:02:45","guid":{"rendered":"https:\/\/calibration.consulting\/product\/isotech-18233-water-triple-point-maintenance-bath\/"},"modified":"2026-01-13T16:02:45","modified_gmt":"2026-01-13T16:02:45","slug":"isotech-18233-water-triple-point-maintenance-bath","status":"publish","type":"product","link":"https:\/\/calibration.consulting\/en\/product\/isotech-18233-water-triple-point-maintenance-bath\/","title":{"rendered":"Isotech 18233 Water Triple Point Maintenance Bath"},"content":{"rendered":"

<\/p>\n

The Isotech<\/a> 18233 Water Triple Point Maintenance Bath provides a highly stable and reproducible environment for realizing and maintaining Water Triple Point (WTP) cells. The Water Triple Point, defined at 0.01 \u00b0C, is the cornerstone of the ITS\u201190 temperature scale and the most important fixed point for calibrating Standard Platinum Resistance Thermometers (SPRTs).<\/p>\n

The 18233 is engineered to maintain WTP cells in an isothermal, controlled environment, giving laboratories a dependable reference for daily calibration and verification work.<\/p>\n

An optimized environment for WTP cells<\/h3>\n

The Water Triple Point is extremely sensitive to temperature gradients, pressure variations and external disturbances. The 18233 addresses these challenges with a carefully regulated fluid column, high\u2011quality insulation and a stable temperature control system. This ensures that the cell remains in a quasi\u2011isothermal state, enabling sub\u2011millikelvin uncertainties.<\/p>\n

Stable and repeatable performance<\/h3>\n

The bath provides the conditions necessary for forming and sustaining a clean, stable WTP plateau. Temperature control is precise, vertical gradients are minimal and the design shields the cell from external thermal influences. This makes the 18233 ideal for:<\/p>\n

    \n
  • > daily verification of SPRTs<\/li>\n
  • > periodic recalibration of reference sensors<\/li>\n
  • > ISO 17025\u2011accredited laboratories<\/li>\n
  • > national and secondary metrology institutes<\/li>\n<\/ul>\n

    Ease of use and practical features<\/h3>\n

    Designed for routine operation, the 18233 offers:<\/p>\n

      \n
    • > a stable, low\u2011convection fluid column<\/li>\n
    • > easy access to the cell holder<\/li>\n
    • > a safe, controlled environment for long plateaus<\/li>\n
    • > compatibility with various WTP cell designs<\/li>\n
    • > quiet, low\u2011maintenance operation<\/li>\n<\/ul>\n

      Its compact footprint makes it suitable for standard laboratory setups while still delivering performance typically associated with larger, more complex systems.<\/p>\n

      Traceability and accuracy<\/h3>\n

      When used with a microK thermometry bridge and a high\u2011quality SPRT, the 18233 enables a fully traceable measurement chain. The bath supports long, stable plateaus, allowing ratio measurements to remain exceptionally steady and uncertainties to be minimized.<\/p>\n

      The Isotech 18233 Water Triple Point Maintenance Bath offers a remarkably stable, accurate and user\u2011friendly solution for realizing and maintaining WTP cells. With its excellent thermal uniformity, reliable control and practical design, the 18233 is an essential instrument for laboratories requiring absolute accuracy at 0.01 \u00b0C.<\/p>\n

      <\/p>\n","protected":false},"excerpt":{"rendered":"

        \n
      • Maintains Four WTP Cells<\/li>\n
      • Solid State Vibration Free Cooling – Quieter Operation<\/li>\n
      • Lower Energy Consumption \/ Operating Costs<\/li>\n
      • Holds up to Four Cells<\/li>\n<\/ul>\n","protected":false},"featured_media":40050,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_seopress_titles_title":"Isotech 18233 Water Triple Point Maintenance Bath","_seopress_titles_desc":"The Isotech 18233 Water Triple Point Maintenance Bath provides a highly stable and reproducible environment for realizing and maintaining Water Triple Point (WTP) cells.","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"none","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"both","_seopress_redirections_param":"","_seopress_redirections_type":301,"_seopress_analysis_target_kw":"","_seopress_news_disabled":"","_seopress_video_disabled":"","_seopress_video":[],"_seopress_pro_schemas_manual":[],"_seopress_pro_rich_snippets_disable_all":"","_seopress_pro_rich_snippets_disable":[],"_seopress_pro_schemas":[]},"product_brand":[],"product_cat":[249,263,264,268],"product_tag":[],"class_list":["post-40051","product","type-product","status-publish","has-post-thumbnail","product_cat-calibration-en","product_cat-temperature-calibration","product_cat-baths","product_cat-primary-standards","first","instock","shipping-taxable","product-type-simple"],"acf":[],"_links":{"self":[{"href":"https:\/\/calibration.consulting\/en\/wp-json\/wp\/v2\/product\/40051","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/calibration.consulting\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/calibration.consulting\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/calibration.consulting\/en\/wp-json\/wp\/v2\/comments?post=40051"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/calibration.consulting\/en\/wp-json\/wp\/v2\/media\/40050"}],"wp:attachment":[{"href":"https:\/\/calibration.consulting\/en\/wp-json\/wp\/v2\/media?parent=40051"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/calibration.consulting\/en\/wp-json\/wp\/v2\/product_brand?post=40051"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/calibration.consulting\/en\/wp-json\/wp\/v2\/product_cat?post=40051"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/calibration.consulting\/en\/wp-json\/wp\/v2\/product_tag?post=40051"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}