Huazheng HZSD-29 Colorimeter Laboratory ASTM D1500 Petroleum Products Lubricating Oil Color Tester

Main Technical Indicators

Composition Of The Instrument

Performance Features

Usage Method Of The Instrument

1.Preparation

(1). Use the lens-wiping paper to wipe the colorimetric tube clearly.

(2). Feed distilled water into a colorimetric tube so that the depth of the water is above 50mm. Then put the above-mentioned colorimetric tube as reference liquid on the right side of the lidded container room.

(3). Feed transparent sample into the other colorimetric tube so that the depth of the water is above 50mm. Then put the above-mentioned colorimetric tube on the left side of the lidded container room and remain it lidded.

If the sample is muddy and opaque, then heat it until the muddy color disappears. Then feed it into the colorimetric tube and measure it immediately.

(4). If the color of the sample is darker than the color of the No.25 standard glass sheet, kerosene is used to dilute the sample before the color of the mixture of the kerosene and the sample is measured. The proportion of the volume of sample to kerosene is 15:85.

2. Experimental Procedure

(1) Turn the power switch on and rotate the rotating-hand-wheel of the standard color disk on the right side of the instrument. At the same time observe through the observation ocular lens. You will see two colored semi circles, of which the left one is the color of sample, the other one the standard color. If the color of the sample is as same as that of the standard glass sheet, readings on the figure disk should be recorded as the chromaticity of the sample. If the color of the sample is between the colors of two adjacent standard glass sheets, then the range of the color number should be recorded, such as No.11-12, or No.15-16. The sample measured after being diluted should be noted as “diluted liquid” in the report.

(2) After the measurement is finished, turn the power switch off, take the colorimetric tube out and wash it clearly for its further usage.

Notes

After the focal length and the light have been adjusted properly, the optical lens shouldn’t be moved violently. If the adjustment is necessarily needed, it should be carefully handled.

When the colorimetric tube which contains the sample is put inside the instrument, the external surface and the undersurface should be wiped clearly.

The standard-color glass sheet should be checked with ASM D1500-stipulating standard color-comparing liquid every six months. If the difference between the color of the color sheet and the color of the color-comparing liquid with the corresponding color number is larger than one color number, the color disk should be displaced or sent to its manufacturer to be standardized.

Attachment: comparison diagram of the color number.

Packing List