KN-974 Apparatus for Acid and Base Number by Color Indicator Titration

Overview

KN-974 Apparatus for Acid and Base Number by Color Indicator Titration conforms to ASTM D974 Standard Test Method for Acid and Base Number by Color-Indicator Titration. New and used petroleum products can contain basic or acidic constituents that are present as additives or as degradation products formed during service, such as oxidation products. The relative amount of these materials can be determined by titrating with acids or bases. This number, whether expressed as acid number or base number, is a measure of this amount of acidic or basic substances, respectively, in the oil—always under the conditions of the test. This number is used as a guide in the quality control of lubricating oil formulations. It is also sometimes used as a measure of lubricant degradation in service; however, any condemning limits must be empirically established.

Features

1.       Microcomputer control, under normal temperature automatically complete series of operation

2.       The measurement results will be displayed on a large LCD screen and output by printer. It takes about 2 minutes to measure each oil sample, this model will automatically save the latest 12 test results and can be load and read or print at any time.

3.       The reagent will not contact with air during the test, which will avoid the solvent volatilization and reduce the impact on the carbon dioxide in the air. Users do not need to touch reagents, this will reduce the harm of organic solvents and chemicals to human body.

4.       Easy to operate, large LCD screen menu selection, screen prompt, sound alarm, the instrument will automatically complete the whole process

Technical parameters

1.       Linear range: 0.001~ 0.900 mgKOH/g

2.       Correlation coefficient: 0.999~0.9998

3.       Minimum resolution: 0.001 mgKOH/g

4.       Repeatability: 2~5% (RSD)

5.       Measurement accuracy:

        Acid value between 0.001~0.100 mgKOH/g is ± 0.003 mgKOH/g

        Acid value between 0. 100~0.900mgKOH/g, 2~5% of displayed value

6.       Display mode: 5.4”Large screen touch type color LCD screen

7.       Outline size: 420 mm*190 mm*340 mm

8.       Net weight:9 kg