http://www.all-about-ph.com/ph-blog.html This page keeps you up-to-date with all additions and changes to the All-about-pH.com Web site. Subscribe here. en-us ph Mon, 14 May 2012 18:02:53 GMT Mon, 14 May 2012 18:02:53 GMT all-about-ph.com http://www.all-about-ph.com/iso-standard-for-phmeter-electrode-calbration-ph-and-temp.html http://www.all-about-ph.com/iso-standard-for-phmeter-electrode-calbration-ph-and-temp.html Please help : is anybody aware of any ISO standard explaining how the two components (that is to say : pH electrode and temp probe) of a single or combined Mon, 14 May 2012 18:02:48 GMT http://www.all-about-ph.com/pH-measurement-forum.html http://www.all-about-ph.com/pH-measurement-forum.html The pH measurement forum provides opportunities for the informal exchange of opinions, experiences and comments on different aspects of pH testing and measurement. Wed, 18 Apr 2012 18:45:42 GMT http://www.all-about-ph.com/ph-measurement-of-a-dry-surface.html http://www.all-about-ph.com/ph-measurement-of-a-dry-surface.html Is there is any method for finding/measuring pH value of a dry surface? Actually, I am doing some work on relating the pH value to the breakdown voltage Wed, 18 Apr 2012 18:17:17 GMT http://www.all-about-ph.com/hydrated-gel.html http://www.all-about-ph.com/hydrated-gel.html Can anybody tell me the exact phenomenon in a pH sensing glass bulb? It is said that H+ ion does not cross hydrated gel (glass membrane), but it is Na+ Wed, 18 Apr 2012 18:15:03 GMT http://www.all-about-ph.com/measurement-conditions-stationary-or-inflow.html http://www.all-about-ph.com/measurement-conditions-stationary-or-inflow.html Hi, I work as a process engineer in a plant and had a recent issue with pH measurement that I had not encountered nor thought about before. Here is Sun, 15 Apr 2012 19:52:37 GMT http://www.all-about-ph.com/high-temperature-ph.html http://www.all-about-ph.com/high-temperature-ph.html We have a new pH meter with separate pH and temperature probes. It seems to have problems measuring pH of very hot (200 F +) tomato products. We used to Sun, 12 Feb 2012 18:17:24 GMT http://www.all-about-ph.com/measuring-ph.html http://www.all-about-ph.com/measuring-ph.html Do you have a question about measuring pH? Then submit your question here . . . Wed, 18 Jan 2012 19:24:27 GMT http://www.all-about-ph.com/nernst-equation.html http://www.all-about-ph.com/nernst-equation.html Nernst equation for a pH electrode is important to understand for you as a user of pH equipment. Sun, 16 Oct 2011 19:31:25 GMT http://www.all-about-ph.com/history-of-the-ph-meter.html http://www.all-about-ph.com/history-of-the-ph-meter.html The first commercial pH testers were built around 1936 by Arnold Beckman in the United States and by Radiometer in Denmark. However, glass pH electrodes Sat, 24 Sep 2011 13:10:32 GMT http://www.all-about-ph.com/nonglass-ph-electrode.html http://www.all-about-ph.com/nonglass-ph-electrode.html In many pH applications, the fragile glass electrode needs to be replaced by a nonglass pH electrode alternative. Mon, 24 Jan 2011 18:19:13 GMT http://www.all-about-ph.com/index.html http://www.all-about-ph.com/index.html The objective of this site is to explain everything you need to know about pH measurement. Sat, 22 Jan 2011 07:12:16 GMT http://www.all-about-ph.com/ph-electrode.html http://www.all-about-ph.com/ph-electrode.html To pick the appropriate pH electrode for your application you need to have a basic understanding of the different parts of an electrode. Thu, 20 Jan 2011 19:11:48 GMT http://www.all-about-ph.com/ph-scale.html http://www.all-about-ph.com/ph-scale.html The pH values of different aqueous solutions can be arranged in a pH scale. Thu, 20 Jan 2011 19:05:44 GMT http://www.all-about-ph.com/combination-electrode.html http://www.all-about-ph.com/combination-electrode.html The most common pH electrode is the combination electrode, which contains both the reference and the measuring electrode in one housing. Thu, 20 Jan 2011 18:30:06 GMT http://www.all-about-ph.com/ph-meter.html http://www.all-about-ph.com/ph-meter.html How a pH meter works . . . Thu, 20 Jan 2011 16:20:21 GMT http://www.all-about-ph.com/ph-color-chart.html http://www.all-about-ph.com/ph-color-chart.html A common method to measure the pH level is to use a pH indicator and the related pH color chart. Thu, 20 Jan 2011 15:54:08 GMT http://www.all-about-ph.com/online-ph-measurement.html http://www.all-about-ph.com/online-ph-measurement.html To use online pH measurement systems you need to take into considerations a couple of things . . . . Sun, 02 Jan 2011 19:36:46 GMT http://www.all-about-ph.com/intelligent-sensors.html http://www.all-about-ph.com/intelligent-sensors.html Intelligent sensors are sensors that are equipped with diagnostic capabilities to monitor their performance and function. Sun, 02 Jan 2011 19:09:06 GMT http://www.all-about-ph.com/differential-ph-sensors.html http://www.all-about-ph.com/differential-ph-sensors.html Differential pH sensors may provide a solution if all else fails. Learn why.... Sun, 02 Jan 2011 16:40:25 GMT http://www.all-about-ph.com/ground-loop-problems.html http://www.all-about-ph.com/ground-loop-problems.html If you are struggling with unstable pH values for your process measurement, there may be ground loop problems. Sun, 02 Jan 2011 16:23:34 GMT http://www.all-about-ph.com/ph-measurement-loop.html http://www.all-about-ph.com/ph-measurement-loop.html When a pH measurement loop is producing unstable, erratic, or maybe no response, it's necessary to find the reason. . . Sun, 02 Jan 2011 15:51:24 GMT http://www.all-about-ph.com/calibration-interval.html http://www.all-about-ph.com/calibration-interval.html The calibration interval is highly dependent on the measurement conditions. Sun, 02 Jan 2011 15:29:42 GMT http://www.all-about-ph.com/ph-electrode-housing.html http://www.all-about-ph.com/ph-electrode-housing.html Electrodes for online pH measurements are inserted into the process via a connection referred to as pH electrode housing. Sun, 02 Jan 2011 13:43:34 GMT http://www.all-about-ph.com/SiteSearch.html http://www.all-about-ph.com/SiteSearch.html Search the all-about-ph.com site Sat, 18 Dec 2010 16:28:45 GMT http://www.all-about-ph.com/ph-sensor.html http://www.all-about-ph.com/ph-sensor.html How the pH sensor works. . . Sun, 07 Nov 2010 19:37:00 GMT http://www.all-about-ph.com/ph-adjustment.html http://www.all-about-ph.com/ph-adjustment.html Accurate pH adjustment requires proper functioning of the pH electrode. . . Sat, 21 Aug 2010 06:48:32 GMT http://www.all-about-ph.com/ph-electrode-storage.html http://www.all-about-ph.com/ph-electrode-storage.html Proper pH electrode storage will maximize electrode performance and extends electrode life. . . Sat, 21 Aug 2010 06:38:40 GMT http://www.all-about-ph.com/ph-test.html http://www.all-about-ph.com/ph-test.html To ensure proper pH test results, you need to be aware of the factors that influence the accuracy . . . Sat, 21 Aug 2010 06:25:34 GMT http://www.all-about-ph.com/ph-buffer-solution.html http://www.all-about-ph.com/ph-buffer-solution.html Treat your pH buffer solution with care, it is your measurement reference. . . Sat, 21 Aug 2010 06:15:43 GMT http://www.all-about-ph.com/ph-testing.html http://www.all-about-ph.com/ph-testing.html Consider the following points before you start your pH testing. . . Sat, 21 Aug 2010 06:09:01 GMT http://www.all-about-ph.com/ph-calibration-solution.html http://www.all-about-ph.com/ph-calibration-solution.html Why traceability of your pH calibration solution is important? Sat, 21 Aug 2010 06:02:28 GMT http://www.all-about-ph.com/ph-buffer.html http://www.all-about-ph.com/ph-buffer.html Why the accuracy of the pH buffer will determine the accuracy of your measurement. . . Sat, 21 Aug 2010 05:49:01 GMT http://www.all-about-ph.com/ph-meter-calibration.html http://www.all-about-ph.com/ph-meter-calibration.html A proper performed pH meter calibration is essential to get an accurate and repeatable measurement. Fri, 20 Aug 2010 17:57:47 GMT http://www.all-about-ph.com/ph-4.html http://www.all-about-ph.com/ph-4.html Calibration buffers pH 4.00 and pH 9.21 are common buffers to use to perform the slope adjustment calibration. Fri, 20 Aug 2010 17:38:23 GMT http://www.all-about-ph.com/ph-7.html http://www.all-about-ph.com/ph-7.html In theory, the zero point of a pH electrode happens at pH 7.00. However . . . Fri, 20 Aug 2010 17:34:22 GMT http://www.all-about-ph.com/ph-calibration.html http://www.all-about-ph.com/ph-calibration.html Why regular pH calibration is needed to ensure accuracy. . . Fri, 20 Aug 2010 13:27:25 GMT http://www.all-about-ph.com/ph-measurement.html http://www.all-about-ph.com/ph-measurement.html Temperature plays a significant role on pH measurement. Fri, 20 Aug 2010 13:21:33 GMT http://www.all-about-ph.com/electronic-ph-tester.html http://www.all-about-ph.com/electronic-ph-tester.html Why your electronic pH tester needs to be a high-resistance voltmeter. . . Fri, 20 Aug 2010 13:09:55 GMT http://www.all-about-ph.com/ph-probes.html http://www.all-about-ph.com/ph-probes.html All pH probes age with time, even if it is not in use. Read more . . . Fri, 20 Aug 2010 12:43:06 GMT http://www.all-about-ph.com/electrode-cleaning.html http://www.all-about-ph.com/electrode-cleaning.html Tips and advice on which pH electrode cleaning agent to use. . . Fri, 20 Aug 2010 12:24:56 GMT http://www.all-about-ph.com/ph-glass.html http://www.all-about-ph.com/ph-glass.html The pH glass membrane sometimes needs to get restored. Read more . . . Fri, 20 Aug 2010 12:03:42 GMT http://www.all-about-ph.com/ph-probe.html http://www.all-about-ph.com/ph-probe.html How to choose the appropriate pH probe for your application. . . Fri, 20 Aug 2010 11:48:22 GMT http://www.all-about-ph.com/pt1000-temperature.html http://www.all-about-ph.com/pt1000-temperature.html The most applicable temperature sensor for a pH electrode is a pt1000 temperature detector. Thu, 19 Aug 2010 19:51:14 GMT http://www.all-about-ph.com/silver-chloride.html http://www.all-about-ph.com/silver-chloride.html What to do to prevent silver chloride precipitation on your pH electrode. . . Thu, 19 Aug 2010 19:44:33 GMT http://www.all-about-ph.com/reference-element.html http://www.all-about-ph.com/reference-element.html The most common material for the reference element is silver chloride (AgCl). Maybe you wonder why silver? Thu, 19 Aug 2010 19:37:00 GMT http://www.all-about-ph.com/reference-electrolyte.html http://www.all-about-ph.com/reference-electrolyte.html The main function of the reference electrolyte is to, via the reference element and the reference junction electrically connect the measured media to the pH meter. Thu, 19 Aug 2010 19:29:57 GMT http://www.all-about-ph.com/probe-tip.html http://www.all-about-ph.com/probe-tip.html Why a probe tip can have different shapes . . . . Thu, 19 Aug 2010 19:25:42 GMT http://www.all-about-ph.com/glass-membrane.html http://www.all-about-ph.com/glass-membrane.html The glass membrane of a pH sensor is constructed of different types of glass, each with different useful properties. Thu, 19 Aug 2010 19:19:06 GMT http://www.all-about-ph.com/reference-junction.html http://www.all-about-ph.com/reference-junction.html The reference junction has both to connect and isolate at the same time. . . Thu, 19 Aug 2010 19:11:37 GMT http://www.all-about-ph.com/open-junction.html http://www.all-about-ph.com/open-junction.html Should you choose an open junction or a permeable diaphragm as the connection point between your pH electrode and your sample? . . . Thu, 19 Aug 2010 18:51:59 GMT