1.0Eesti Keskkonnauuringute Keskushttps://ekuk.ee/en/ndhaldurhttps://ekuk.ee/en/author/88dd5dc69cce3e4d/rich600338<blockquote class="wp-embedded-content" data-secret="vzWVH7cmR9"><a href="https://ekuk.ee/en/services/reference-laboratory-services/">Reference laboratory services</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://ekuk.ee/en/services/reference-laboratory-services/embed/#?secret=vzWVH7cmR9" width="600" height="338" title="“Reference laboratory services” — Eesti Keskkonnauuringute Keskus" data-secret="vzWVH7cmR9" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); //# sourceURL=https://ekuk.ee/wp-includes/js/wp-embed.min.js </script> https://ekuk.ee/wp-content/uploads/2025/01/photo-1581594549595-35f6edc7b762-768x512.avif600400We perform the functions of the national reference laboratory in the field of surface water, ground water, sea water, waste water and effluent, and sewage sludge. The aim of the reference laboratory’s activities is to ensure the high-quality work of testing laboratories and the reliability of analyses. For this purpose, we organize regular proficiency tests […]