1140 便攜式航油水分離指數(shù)儀Micro-separometer

符合ADTM D 3948 & D 4860 SH/T0616

Water Separation Characteristic, Free Water And Particulate Testing (ASTM Standard Test Methods D3948, D7224, D7261 & D4860)(D3948 is included in Specifications D1655 and D7566)

航煤和柴油的水分離特性會因為生產(chǎn)、儲存過程中添加了表面活性劑而受到影響。水分離指數(shù)測定儀能夠測量油品通過過濾分離器除去自由水的效率，從而發(fā)現(xiàn)油品中的表面活性劑。

儀器包括： 

注射速度控裝置（帶有報警電路） 

標準電源線 

可充電電池 

50毫升吸液管一個 

配件包一個 

操作手冊

配件包： 

6根注射器 

吸液管頭 

凝聚過濾器 

濁度測試的玻璃管

主要特點：

可測試柴油、航煤 

數(shù)字顯示 

測試結果重復性高 

便攜式設計，設備齊全 

自動計時 

操作簡單，低成本，速度快，每次測試只需150ml油樣5分鐘即可測出結果

For quality control purposes, water separation characteristics of fuels are rated to determine the amount of surface active materials (surfactants) present. Surfactants degrade the performance of filter separators used to remove water from the fuel. The presence of water can impair engine performance and initiate microbiological growth, which can cause corrosion in tanks and filter plugging in fuel lines. Also for quality control purposes, fuels are subjected to “Clear & Bright” tests to determine the amount of free water and particulate matter in mid-distillates.

Description of Instrument & Tests

The Model 1140 Micro-Separometer is a electro-mechanical instrument used to perform four discrete tests. ASTM Standard Test Methods D3948 (Jet), D7224 (Jet) and D7261 (Diesel) are used to rate water separation characteristics and D4860 (Jet or Diesel) detects and numerically rates free water and particulate contamination.  This instrument performs each of the four tests above simply by using one of the four “Six Packs” containing the proper coalescer cells.

Water Separation Characteristic

Test Method D3948, D7224 and D7261 employs the use of a turbidimeter, a mechanical mixer, and a disposable coalescer filter. A portion of the sample, in a clear glass vial, is used to set the meter to read 100. The sample in the vial is discarded and the vial is retained.

Another portion of the sample in a plastic syringe is used to create a water/fuel emulsion using the mixer. The emulsion is passed through the filter at a programmed rate and a portion is collected in the retained vial. The vial is replaced in the turbidimeter and the water separation characteristic of the fuel is rated.

The value obtained is compared to the unprocessed sample that was used to set the meter to 100. The higher the rating, 100 being the maximum, the less surfactant present.

Free Water and Particulate Contamination (Clear& Bright)

Test Method D 4860 passes a portion of the sample through a filter medium, which is collected in a clear glass, vial. The vial is placed in the turbidimeter and the meter is adjusted to 100. The processed fuel is discarded and a portion of the unprocessed fuel is placed in the vial, which is re-inserted in the turbidimeter. Higher ratings, 100 is maximum, indicate that there is less free water and particulate present.

“Six Pack” Test Expendables Including Coalescer Cells

A box commonly known as a “Six Pack” that contains six test kits is shown. Each Test Kit contains vacuum packed expendables that are used to perform a single test. Each coalescer/filter is labeled to identify the type of fuel and the applicable ASTM method to be used. A container of distilled water is also included in each Six Pack to perform water separation tests.