Lovibond COD and COD Reactor Indonesia

Waste water parameter COD
The chemical oxygen demand, ST-COD value, of water as determined by this dichromate method can be considered as an estimate of the theoretical oxygen demand, i.e. the amount of oxygen consumed in total chemical oxidation of the organic constituents present in the water.

Setup CheckitDirect COD VARIO
The Lovibond® CheckitDirect COD VARIO test setup allows highly sensitive and precise water testing with minimum effort. It measures the ST-COD concentration by photometric detection employing a linear relationship between absorbance and concentration.

After adding the sample to a Lovibond® COD VARIO tube test (LR, MR according to ISO 15705:2003-01), it is heated in the reactor and then analysed in the CheckitDirect COD vario photometer.

The COD-Setup comprises the CheckitDirect COD vario photometer, 25 tube tests for each of the two lower measuring ranges, a reactor for sample digestion, and a vial stand.

Lovibond Mini Direct Photometer Indonesia

Reliable Water Testing in a Pocket Sized Format

The MiniDirect is a small, lightweight, handy photometer system with the renowned Lovibond® quality. It uses Lovibond® reagents in the form of tablet reagents or powder packs. These maintain their stability over long periods and guarantee outstanding accuracy. The attractive design is characterised by its clear lines, its user-friendliness
and ergonomics. Reading measurement values is child‘s play, thanks to the illuminated display on keypress. And because it is waterproof, the MiniDirect can be used outdoors in any circumstances.

N.I.S.T Traceability
The MiniDirect has a factory calibration, which is related to internal standards which are not N.I.S.T traceable. The instrument may be calibrated by the user in a “user calibration mode” with N.I.S.T traceable standards.
(N.I.S.T. = National Institute of Standards and Technology)

Delivery content
Each MiniDirect is delivered in a plastic case, including 9 V battery, 3 round vials with lid, reagents for 100 tests, spares, guarantee sheet, certificate and instruction manual.

Technical data

Lovibond Comparator 2000+ Indonesia

The system for colorimetric water analysis

With its accessories, the Lovibond® Comparator system 2000 is an extremely versatile, modular system for testing water. It is simple to use yet is uncompromising in terms of precision and reproducibility of results. It is compact and portable. The integrated prism brings the glass standards of the test discs and the coloured sample into the same field of view.

Test discs
The required accuracy of results is only ensured if stable, fade-free colour standards are used. Glass colour standards are fade-free, resistant to chemicals and scratchproof. Lovibond® standards are made from coloured glass filters. They comply with international standards, e.g. ISO 7393/2.

Lighting unit
We recommend the use of the battery-operated Lovibond® lighting unit in variable lighting conditions. This guarantees uniform lighting conditions, and ensures greater test accuracy

Lovibond CHECKIT®Comparator Indonesia

CHECKIT®Comparator

The Lovibond® CHECKIT® comparator is a compact, handy colorimetric unit which is suitable both for mobile and stationary analysis work. Supplied with a generous number of different colour scales, it provides the basis for a comprehensive, easy-to-use colorimetric analysis system. The CHECKIT®Comparator D55 enables the use of large path lengths. The mirror optics makes use of the view through the entire length of the cell. Test Kit complete in case Plastic cells, frosted on two sides, volume 10 ml, path length 13.5 mm, with lid

CHECKIT®Disc

Each CHECKIT®Disc contains a continuous colour scale which makes it possible to achieve an exact colour match between the colour standard and the sample. These CHECKIT®Discs are specially manufactured in selected materials to remain colour-stability over a long period and guarantee reliable, reproducible measurement results. Instruction manuals explaining the various stages of analysis in simple, straightforward terms, are supplied with each CHECKIT®Disc.

Applications

Lovibond MINIKITs – Arsenic Test Kit (highly sensitive) Indonesia

The methods

The MINIKITs are designed for rapid water testing. Most MINIKITS are based on titrimetric methods.

Tablet count method

In the tablet count method, the liquid titration solution and indicator are replaced by Lovibond® tablet reagents. A specific number of tablets is added to a defined sample volume until a chemically induced colour change takes place. The concentration of the parameter being measured is calculated from the number of tablets required. The measuring range can be expanded by varying the sample volume.

Speed test

The speed test is based on reverse titration.  After adding a reagent tablet to a calibrated test tube, the water sample is added slowly until the colour of the solution changes (e.g. from red to blue). The user can then obtain the result from the liquid level.