ISO 12156 ASTM D6079 Diesel Lubricity High-frequency Reciprocating Test Machine ASTM D7688 Diesel Fuel Lubricity Tester

Vibration frequency

50 ± 1 Hz, adjustable within 10–500 Hz

Vibration travel

1 ± 0.02 mm, adjustable within 20 μm–2.0 mm

Test oil temperature

60 ± 1℃, adjustable within room temperature–150℃

Test load

200 ± 1 g, adjustable within 0.1–1 kg

Sample oil volume

2.0 ± 0.2 mL

Surface area of the oil box

600 ± 100 mm²

Test duration

75 ± 0.05 minutes; automatic stop upon completion

Scratch Measurement

Equipped with metallographic microscope, electronic imaging system and X/Y dual-readout device; resolution: 2592*1944 pixels

Test ball

Diameter: 6 mm; Rockwell hardness: 58–66; surface roughness: Ra < 0.05 μm

Test sample

Vickers hardness (HV30): 190–210; surface roughness: Ra < 0.02 μm

Constant Temperature and Humidity Control System - Box temperature & humidity

23 ± 1℃, relative humidity 53 ± 3%RH; adjustable per test method requirements

Constant Temperature and Humidity Control System - Compliance standards

Complies with environmental temperature and humidity control requirements of NB/SH/T0765, ISO 12156.1, ASTM D6079