Lovibond 194295 Silicone Oil | 15 mL SCDB

High-Clarity Silicone Oil for Turbidity Meter Sample Cells

Lovibond 194295 Silicone Oil (15 mL SCDB) is a high-quality optical conditioning oil designed for use with all brands of turbidity meters, including Lovibond, Hach, and other laboratory photometric instruments. Formulated to match the refractive index of glass sample cells, this oil ensures accurate turbidity measurement by masking minor scratches, imperfections, and surface irregularities that can scatter light and distort results.

When applied as a thin, uniform coating, Lovibond Silicone Oil enhances the optical path between the sample cell and instrument well, improving repeatability and stability of turbidity readings. It is especially beneficial for laboratories using turbidimeters for drinking water testing, wastewater analysis, environmental monitoring, industrial process control, and water treatment plant operations.

This product is equivalent to Hach 126936, offering the same performance and compatibility at a more economical price—providing reliable savings without compromising on quality.

Features of Lovibond 194295 Silicone Oil (15 mL SCDB)

• Designed for all turbidity meters, including Lovibond and Hach

• Matches the refractive index of glass sample cells

• Masks minor scratches and imperfections to reduce stray light scattering

• Ensures more stable, accurate, and repeatable turbidity measurements

• Easy to apply using a Kimwipe® or similar soft, lint-free cloth

• Helps maintain instrument performance without frequent cell replacement

• Cost-effective alternative to Hach 126936

• Supplied in a 15 mL bottle, ideal for laboratory or field use

Directions for Use

1. Clean sample cells and caps thoroughly using lab-grade glass cleaner.

2. Rinse multiple times with distilled or demineralized water.

3. Apply a small bead of silicone oil from top to bottom of the vial.

4. Use a Kimwipe® or other soft cloth to spread evenly.

5. Remove excess oil—only a thin, nearly invisible layer should remain.

Frequently Asked Questions (FAQs)

Is this silicone oil compatible with Hach turbidimeters?

Yes. It is fully compatible and functionally equivalent to Hach 126936. It delivers the same optical performance at a lower cost.

Why is silicone oil used on sample cells?

Silicone oil helps:

• Mask fine scratches and imperfections

• Reduce stray light scattering

• Ensure consistent optical coupling

• Improve the accuracy and repeatability of turbidity readings

Will too much oil affect readings?

Yes. Only a thin, uniform film should be applied. Excess oil can cause distorted results or introduce streaks.

Can this be used with plastic sample vials?

It is designed primarily for glass sample cells, which match the refractive index of the silicone oil. Compatibility with plastic may vary.

Do sample cells need to be cleaned before oiling?

Yes. Cells should be clean, residue-free, and rinsed with distilled water before applying oil to ensure accurate readings.

How much oil is included?

Each bottle contains 15 mL of silicone oil.

Is Lovibond affiliated with Hach?

No. Lovibond is not affiliated with Hach. This product is simply compatible with Hach instruments.

Is this safe for drinking water laboratory use?

Yes. It is widely used in drinking water, wastewater, and environmental labs for turbidity analysis.

No Affiliation Disclaimer
Hach is a registered trademark of Hach Company, Loveland, Colorado. The use of the Hach trademark does not imply any affiliation with or approval by Hach Company regarding the formulation, testing or compatibility of Lovibond products for use in Hach brand spectrophotometers or other devices or systems.