In late March 2017, the review meeting on the revision of national standards was held in Wuxi. GB/T 510 is one of the five criteria for this meeting.
In early 2014, included in the national standard revision plans: "jointly responsible by Sinopec Petrochemical Science Research Institute and Dalian Petroleum Instrument Co. Ltd., modify the use of gamma OCT20287--1991" petroleum products pour point determination method "in the revised B method of national standard GB/T 510-1983" petroleum products -- Determination Method .
The new revised standard will have independent intellectual property rights of the "automatic trace determination of solidification point" in standard, "Ji'nan refinery, Hohhot refinery, Jinling Petrochemical and Zhenhai Refinery" involved in the automatic test instrument of precision determination of freezing point statistics.
In January 2015 ~2015 December, the manual and automatic instruments were debugged and prepared. Manual and automatic instruments were tested for repeatability and reproducibility."
"The January 2016 ~2016 year in June, the precision of statistical test and the Dalian Petroleum Instrument Company six laboratory together; collect and analyze statistical results, automatically determine the precision of the instrument; writing and explanation of the draft standard."
The fourth page ~14 page of the manuscript introduces the precision statistical test of the automatic instrument with many detailed and scientific texts and methods. The accuracy is as follows: repeatability is 1 degrees, reproducibility is 2.4 degrees centigrade.
For the diesel distillate samples without additives, reviewers highly appreciate the characteristics of less useful samples, quick test and convenient and saving labor".
Conclusion manual instrument and automatic instrument test manuscript: "reproducibility requirements of automatic instrument manual instrument can achieve results point".
The draft mentioned for different instrument automatic pour to make tests: choose 9 non additive diesel oil samples in the Sinopec of Fushun Petrochemical Research Institute imported Faye Steiker automatic point instrument (PPA-70X) to do some tests, determination of contrast test instrument is shown in Table 8 and automatic trace point".
The automatic test method of trace table visible point more accurately
There is no doubt that the new standards to be implemented will greatly improve the efficiency of the test due to the adoption of automatic micro metering.