Standard basis

HJ 637-2012

  Qualitative approach

Infrared spectra

    Instrument detection limit

0.4mg/L petroleum standard solution

    The maximum range of the instrument

800mg/L petroleum standard solution (0.5cm quartz cuvette)

    Method detection limit

0.01mg/L oil

    Sample measurement range

0 to 100% oil (enriched or diluted)

    Based on the measured value

ρ=X•A2930+Y•A2960+Z•(A3030-A2930÷F)

  CH accuracy

100mg/L±10%

  CH2 accuracy

20mg/L±10%

  CH3 accuracy

20mg/L±10%

    Accuracy of 100mg/L reference material

±8%

    50mg/L standard substance accuracy

±10%

    5mg/L standard substance accuracy

±10%

    Repeatability

< 1%

    Absorbance range

0.00000 to 2.00000(A) logarithmic scale

    Absorbance minimum scale

0.008(A)

    Measurement wavelength range

3200nm to 3550nm

    Wavelength resolution

2.5nm

    Wavelength repeatability

±1nm

    Scanning wave number range

3400cm-1 to 2400cm-1

    Wave number accuracy

±1cm-1

  Extraction solvent

Carbon tetrachloride and tetrachloroethylene

    Correlation coefficient

r ≥ 0.999

    Characteristic map scanning speed

< 1 minute/time

    Zero stability

No drift

    Quartz Cell Specifications

0.5cm to 5cm

  Workstation connection

Built-in computer

    Workstation system

(No external workstation required)

    Best use temperature

Windows 7

    Optimum use humidity

20°C to 25°C

    weight

< 50% RH

    volume

13.8kg

    power supply

530mm × 380mm × 220mm