{"id":1682,"date":"2026-10-06T12:35:43","date_gmt":"2026-10-06T12:35:43","guid":{"rendered":"https:\/\/dev.ich.org\/index.php\/guidelines\/q6a\/"},"modified":"2026-10-06T12:35:43","modified_gmt":"2026-10-06T12:35:43","slug":"q6a","status":"publish","type":"guideline","link":"https:\/\/dev.ich.org\/index.php\/guidelines\/q6a\/","title":{"rendered":"Q6A \u2013 Specifications : Test Procedures and Acceptance Criteria for New Drug Substances and New Drug Products: Chemical Substances"},"content":{"rendered":"<p>The ICH Harmonised Guideline was finalised under <em>Step 4 <\/em>in October 1999. This document provides guidance on the setting and justification of acceptance criteria and the selection of test procedures for new drug substances of synthetic chemical origin, and new drug products produced from them, which have not been registered previously in the ICH regions.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The ICH Harmonised Guideline was finalised under Step 4 in October 1999. This document provides guidance on the setting and justification of acceptance criteria and the selection of test procedures for new drug\u2026<\/p>\n","protected":false},"featured_media":0,"template":"","guideline_category":[18],"guideline_tag":[],"rd_phase":[],"class_list":["post-1682","guideline","type-guideline","status-publish","hentry","guideline_category-quality"],"acf":[],"_links":{"self":[{"href":"https:\/\/dev.ich.org\/index.php\/wp-json\/wp\/v2\/guideline\/1682","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dev.ich.org\/index.php\/wp-json\/wp\/v2\/guideline"}],"about":[{"href":"https:\/\/dev.ich.org\/index.php\/wp-json\/wp\/v2\/types\/guideline"}],"version-history":[{"count":0,"href":"https:\/\/dev.ich.org\/index.php\/wp-json\/wp\/v2\/guideline\/1682\/revisions"}],"wp:attachment":[{"href":"https:\/\/dev.ich.org\/index.php\/wp-json\/wp\/v2\/media?parent=1682"}],"wp:term":[{"taxonomy":"guideline_category","embeddable":true,"href":"https:\/\/dev.ich.org\/index.php\/wp-json\/wp\/v2\/guideline_category?post=1682"},{"taxonomy":"guideline_tag","embeddable":true,"href":"https:\/\/dev.ich.org\/index.php\/wp-json\/wp\/v2\/guideline_tag?post=1682"},{"taxonomy":"rd_phase","embeddable":true,"href":"https:\/\/dev.ich.org\/index.php\/wp-json\/wp\/v2\/rd_phase?post=1682"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}