Clora® Analyzer with Accu-Flow

Clora benchtops are compliant with ASTM D7536 and D4929 standards and deliver a limit of detection of 0.13 ppm and a dynamic range up to 3000 ppm. Clora is powered by MWDXRF, the same technology found in our signature sulfur analyzer, Sindie. This direct measurement technique does not require gasses or high-temperature processes equating to easy operation and minimum maintenance requirements.

Clora offers many features such as extended range with and without a catalyst, autosampler, and Accu-flow.

Accu-flow technology eliminates particle settling and delivers results that better reflect crude streams as they exist in the refinery. Over a typical measurement cycle, the heavier particles can settle to the bottom of the sample cup and cause higher than normal results.


  • LIMS data output compatible software
  • Extended Range (XR): 0.13 ppm to 4 wt%
  • Catalyst testing capability
  • Accu-flow*
  • 8-cell Autosampler*
  • Accucell Sample Basket Available

Methods: ASTM D7536

Clora® is a compact analyzer to measure total chlorine in liquid hydrocarbons such as aromatics, distillates, heavy fuels, crude oils, and aqueous solutions. Clora delivers unprecedented accuracy and precision for petroleum and petrochemical applications where ease-of-use, reliability and measurement speed are critical.


  • Total chlorine analysis from aqueous solutions and aromatic products to heavy fuels, crudes, and catalyst
  • For refineries, petrochemical and additive plants, pipeline terminals, and test laboratories
  • LOD: 0.13 ppm for hydrocarbons
  • LOD: 0.3 ppm for aqueous samples
  • Dynamic Range: 0.13 ppm to 3000 ppm
  • Fits on any lab bench
  • Easy to use
    • Intuitive touch screen
    • Just plug-in and measure
    • Measurement time: 30-900 s
  • Extremely low maintenance: no conversion gasses, heating elements, columns, or quartz tubing

Model: Clora

Test Method: ASTM D7536 and D4929

Dimensions: 37 cm (w) x 50 cm (d) x 34 cm (h)

Power: 100-120 VAC, 47-63 HZ at 6.0 Amps/ 200-240 VAC, 47-63 HZ at 6.0 Amps

Sample Cup Volume: 10 ml

Ambient Temperature Requirements: 5-40° C (40-104° F)

Dynamic Range: Standard: 0.13 ppm to 3000 ppm Extended Range (XR): 0.13 ppm to 4 wt%

Measurement: 30-900 s

Calibration: 8 calibration curves. Automatic and manual calibration functionality

Now Available with
Accu-Flow Technology!

Accu-flow allows the sample to flow continuously during

measurement. This continuous flow eliminates the settling of chlorine, producing accurate and precise total chlorine results.


  • 8 sample cell capacity
  • Increases productivity
  • Uses Accucells for hassle-free sample prep


Product Comparison

Part Number
Auto Sampler
400641-01M Clora No No
401430-01M Clora with Autosampler Yes No
400641-02M Clora with Accucell No No
400641-01MXR Clora Extended Range No No
401430-01MXR Clora Extended Range with Autosampler Yes No
400641-01MFT Clora Accu-flow No Yes
400641-01MXRFT Clora Extended Range with Accu-flow No Yes
400641-01MXRC Clora Extended Range (Catalysts) No No
400641-01MXRCFT Clora Extended Range (Catalysts) with Accu-flow No Yes

Lazar Scientific is your reliable source for Elemental Analysis.