{"id":1661,"date":"2026-10-06T12:30:57","date_gmt":"2026-10-06T12:30:57","guid":{"rendered":"https:\/\/dev.ich.org\/index.php\/guidelines\/q4b-annex-1\/"},"modified":"2026-10-06T12:30:57","modified_gmt":"2026-10-06T12:30:57","slug":"q4b-annex-1","status":"publish","type":"guideline","link":"https:\/\/dev.ich.org\/index.php\/guidelines\/q4b-annex-1\/","title":{"rendered":"Q4B Annex 1 \u2013 Residue on Ignition\/Sulphated Ash General Chapter"},"content":{"rendered":"<p>The ICH Harmonised Annex was finalised under <em>Step 4<\/em> in November 2007. This annex is the result of the Q4B process for Residue on Ignition\/Sulphated Ash General Chapter. This annex was revised (R1) on 27 September 2010 to include the Interchangeability Statement from Health Canada, Canada.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The ICH Harmonised Annex was finalised under Step 4 in November 2007. This annex is the result of the Q4B process for Residue on Ignition\/Sulphated Ash General Chapter. This annex was revised (R1) on 27 September 2010\u2026<\/p>\n","protected":false},"featured_media":0,"template":"","guideline_category":[18],"guideline_tag":[],"rd_phase":[],"class_list":["post-1661","guideline","type-guideline","status-publish","hentry","guideline_category-quality"],"acf":[],"_links":{"self":[{"href":"https:\/\/dev.ich.org\/index.php\/wp-json\/wp\/v2\/guideline\/1661","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\/1661\/revisions"}],"wp:attachment":[{"href":"https:\/\/dev.ich.org\/index.php\/wp-json\/wp\/v2\/media?parent=1661"}],"wp:term":[{"taxonomy":"guideline_category","embeddable":true,"href":"https:\/\/dev.ich.org\/index.php\/wp-json\/wp\/v2\/guideline_category?post=1661"},{"taxonomy":"guideline_tag","embeddable":true,"href":"https:\/\/dev.ich.org\/index.php\/wp-json\/wp\/v2\/guideline_tag?post=1661"},{"taxonomy":"rd_phase","embeddable":true,"href":"https:\/\/dev.ich.org\/index.php\/wp-json\/wp\/v2\/rd_phase?post=1661"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}