{"id":129,"date":"2007-11-14T06:00:12","date_gmt":"2007-11-14T13:00:12","guid":{"rendered":"http:\/\/www.washingtonwinemaker.com\/blog\/2007\/11\/14\/calibrating-a-ph-meter-maybe-the-new-buffer-solution-will-do\/"},"modified":"2007-11-14T06:00:12","modified_gmt":"2007-11-14T13:00:12","slug":"calibrating-a-ph-meter-maybe-the-new-buffer-solution-will-do","status":"publish","type":"post","link":"https:\/\/washingtonwinemaker.com\/blog\/2007\/11\/14\/calibrating-a-ph-meter-maybe-the-new-buffer-solution-will-do\/","title":{"rendered":"Calibrating A pH Meter: Maybe The New Buffer Solution Will Do"},"content":{"rendered":"<p>I racked and measured <a href=\"http:\/\/www.washingtonwinemaker.com\/blog\/2007\/11\/13\/racking-topping-up-and-no-more-headspace\/\">four batches<\/a> the other day, and it gave me the opportunity to size up my new <a href=\"http:\/\/www.washingtonwinemaker.com\/blog\/2007\/11\/07\/calibrating-a-ph-meter-buffer-solution\/\">buffer solution<\/a>. I recorded TA values for three of those batches while I was still using my old buffer solution to calibrate my pH meter, and they shouldn&#8217;t have changed much. Here are the data:<\/p>\n<table style=\"border-collapse: collapse\" border=\"0\" cellpadding=\"4\" width=\"80%\">\n<tr>\n<td><strong>Name<\/strong><\/td>\n<td><strong>Old Buffer<\/strong><\/td>\n<td><strong>New Buffer<\/strong><\/td>\n<\/tr>\n<tr>\n<td>Rhubarb Wine<\/td>\n<td>4\/22\/07: 6 g\/L<\/td>\n<td>11\/10\/07: 7 g\/L<\/td>\n<\/tr>\n<tr>\n<td>Oregano Wine<\/td>\n<td>8\/12\/07: 6 g\/L<\/td>\n<td>11\/10\/07: 5.5 g\/L<\/td>\n<\/tr>\n<tr>\n<td>Grocery Store Chablis<\/td>\n<td>8\/23\/07: 7 g\/L<\/td>\n<td>11\/10\/07: 6 g\/L<\/td>\n<\/tr>\n<\/table>\n<p>The old and new measurements are all within 1 g\/L. Since I&#8217;m measuring my liquid volumes with the plastic syringe that came with my cheap acid test kit, not pipettes or burettes, I don&#8217;t think I can claim accuracy better than 1 g\/L. So I&#8217;m not going to say the new buffer is great, but any error its causing is pretty small.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>I racked and measured four batches the other day, and it gave me the opportunity to size up my new buffer solution. I recorded TA values for three of those batches while I was still using my old buffer solution to calibrate my pH meter, and they shouldn&#8217;t have changed much. Here are the data: [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12,13,21],"tags":[48],"class_list":["post-129","post","type-post","status-publish","format-standard","hentry","category-enology","category-equipment","category-maintenance-and-cleaning","tag-nad"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/washingtonwinemaker.com\/blog\/wp-json\/wp\/v2\/posts\/129","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/washingtonwinemaker.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/washingtonwinemaker.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/washingtonwinemaker.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/washingtonwinemaker.com\/blog\/wp-json\/wp\/v2\/comments?post=129"}],"version-history":[{"count":0,"href":"https:\/\/washingtonwinemaker.com\/blog\/wp-json\/wp\/v2\/posts\/129\/revisions"}],"wp:attachment":[{"href":"https:\/\/washingtonwinemaker.com\/blog\/wp-json\/wp\/v2\/media?parent=129"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/washingtonwinemaker.com\/blog\/wp-json\/wp\/v2\/categories?post=129"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/washingtonwinemaker.com\/blog\/wp-json\/wp\/v2\/tags?post=129"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}