{"id":30036,"date":"2018-08-14T03:04:47","date_gmt":"2018-08-14T03:04:47","guid":{"rendered":"\/forum\/forums\/topic\/mass-fraction-to-ppm\/"},"modified":"2018-08-14T03:04:47","modified_gmt":"2018-08-14T03:04:47","slug":"mass-fraction-to-ppm","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/mass-fraction-to-ppm\/","title":{"rendered":"Mass Fraction to PPM"},"content":{"rendered":"<p>Hey<br \/>\n<br \/>\nI want to convert from mass fraction of a species into PPM in a UDF or custom field function. I saw many define it as mass fraction x 10^6 while others define it as mass fraction x density of mixture x 10^6 \/ density of species. Would you please let me know which one is correct or if there is another way. Thanks<\/p>\n","protected":false},"template":"","class_list":["post-30036","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["2205"],"_bbp_old_topic_author_name_id":["Anonymous"],"_bbp_old_is_topic_anonymous_id":["false"],"_bbp_old_closed_status_id":["publish"],"_bbp_author_ip":[null],"_bbp_old_sticky_status_id":["normal"],"_bbp_likes_count":["0","0","0","0","0"],"_btv_view_count":["8996"],"_bbp_subscription":["287191","199"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["30036"],"_bbp_forum_id":["27792"],"_bbp_engagement":["199","22555","157976","158166","184398","287191"],"_bbp_voice_count":["6"],"_bbp_reply_count":["7"],"_bbp_last_reply_id":["288899"],"_bbp_last_active_id":["288899"],"_bbp_last_active_time":["2023-06-15 11:02:52"]},"test":"carly"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/30036","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/30036\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=30036"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}