What is the low temperature fluidity of diesel oil related to?
The flow performance of diesel oil at low temperature is not only related to the normal fuel supply system, but also has a close relationship with the storage and transportation of diesel oil at low temperature. The low temperature fluidity of diesel oil is related to its chemical composition, and the higher the content of n-alkanes, the worse the low temperature fluidity. The indexes for evaluating diesel oil's low temperature fluidity in China include freezing point and cold filter point. According to China's light diesel quality standard, the freezing point is determined according to GB/T510, and the cold filter point is determined according to SH/T0248.
SH0248C Automatic freezing point cold filter point tester (Shandong Shengtai Instrument Co., LTD.) is based on the national standard GB/T510 "Petroleum products freezing point determination method" and SH/T 0248, using modern advanced technology, set mechanical, optical, electronic and computer technology in one, Can automatically complete the freezing point of petroleum products, cold filter point testing, the instrument uses photoelectric detection technology, glass tube automatic tilt method, imported compressor refrigeration system to ensure that the refrigeration depth requirements.
Two, meet the standard: GB/T510, SH/T 0248
1. Upgrade to 7-inch TFT color LCD display;
2, refrigeration mode: fully enclosed high efficiency refrigeration compressor.
3, cold trap for the test: 2.
4. Detection method: spectral detection
5, after the upgrade can store 199 groups of historical data, easy to query; At the same time can be equipped with USB output function.
6, standard micro printer automatic measurement automatic thermal printing (standard)
7. If there is no operator after the test, set the automatic closing time of the refrigerator within 0-50min to avoid the frequent opening of the compressor and prolong the service life of the instrument.
8, test interval: cold filter point 1℃ freezing point 2℃.
9, temperature sensor: imported Pt 100 probe
10, refrigeration medium: metal bath
11. Laser printer interface, HP1108 laser printer can be linked (optional).
12, with date password setting function.
13, standard micro printer automatic measurement automatic thermal printing
14, with TCP network transmission function
15. Limis system can be uploaded and connected