Organic Impurities Test Set
Product Code : LSK-CL-10592
Organic Impurities Test Set (SKU LSK-CL-10592) is a simple colour-comparison kit for checking fine aggregate, such as concrete sand, for organic compounds that can harm concrete. A sample is shaken with 3% sodium hydroxide solution in a graduated bottle, left for 24 hours and compared with a five-colour reference chart. The set is available with or without the reagent. Science Lab Supplies supplies it from Ambala, India to colleges, training centres, tender contractors and distributors.
Specifications
The test bottles are graduated in both ounces and millilitres and close with watertight screw-on caps. A five-colour colour reference chart gives the comparison standard, and the sodium hydroxide pellets, when ordered, make enough 3% solution for more than 150 tests. Reagent-grade pellets can be requested.
| Parameter | Value |
|---|---|
| SKU | LSK-CL-10592 |
| Test | Presence of organic compounds in fine aggregates |
| Test bottles | Special graduated bottles, marked in oz and ml, with watertight screw-on caps |
| Reagent | 3% sodium hydroxide solution; set available with or without sodium hydroxide |
| Reagent yield | Pellets supply enough 3% solution for over 150 tests |
| Reagent grade | Reagent-grade sodium hydroxide pellets available to order |
| Colour chart | Five-colour colour reference chart |
| Standing time | 24 hours |
| Supplied by | Science Lab Supplies, Ambala, India |
Applications and Experiments for the Organic Impurities Test Set
The set is used to screen sand and other fine aggregate for organic matter before it goes into concrete or mortar. If the liquid above the sample is darker than the reference colour, organic compounds may be present and further testing is needed. It is a standard aggregate test in civil engineering and construction-materials courses.
- B.Tech / B.E. civil engineering: organic impurities in fine aggregate.
- Diploma civil engineering: quality checks on concrete sand.
- TVET construction-materials courses: colour-comparison screening.
- Site laboratories: checks on incoming fine aggregate.
Shelf life depends on the chemical, its grade and storage conditions; ask us for the expiry date of the batch you are quoted.
Standard Scope of Supply
The set includes graduated test bottles with watertight screw caps and the five-colour colour reference chart, supplied with or without sodium hydroxide pellets as you specify. Individual components can also be quoted separately, which is useful for replacing bottles or buying more reagent.
Packing, MOQ and Lead Time
A quotation can cover a single set, spare bottles or reagent only, or several sets for a class, and it will state the packing, delivery time and price for exactly that. Other fine-aggregate equipment can be listed on the same quotation to build TVET workshop equipment for a materials course.
Science Lab Supplies is a registered exporter with an Importer-Exporter Code and can ship to buyers in Nepal, Bangladesh, Zambia, Rwanda, South Africa and Qatar. Science Lab Supplies is registered for GST (GSTIN 06ADEPJ0574F2ZU). Send your list through the contact page or the enquiry cart, or see the lab tender page for tender work.
Frequently Asked Questions
Is sodium hydroxide included?
You can choose. The set is offered with or without sodium hydroxide reagent; when included, the pellets make enough 3% solution for more than 150 tests.
How is the result read?
After 24 hours the colour of the liquid above the sample is compared with the reference chart. A darker colour means organic compounds may be present and the aggregate should be tested further.
Is the reagent hazardous?
Yes. Sodium hydroxide is corrosive, so students should handle pellets and solution only under supervision with gloves and eye protection, and store it sealed.
Who supplies the Organic Impurities Test Set?
Science Lab Supplies supplies it from Ambala, India, preparing quotations for institutions directly and for tender contractors and distributors.
Related Fine Aggregate Testing Equipment
Organic content is one of several checks made on sand before it goes into concrete. These items from the Concrete Laboratory range cover sampling, specific gravity, absorption and silt.
- Dunagan Test Set — specific gravity, absorption and silt of aggregates.
- Sample Splitters (Riffle Boxes) — representative portions of sand for testing.
- Coarse Aggregate Density Test Set — density of the coarse fraction.
- Slump Test Apparatus — workability of the finished mix.
Browse the full Concrete Laboratory range or all TVET lab equipment.
Last updated: 25 September 2026
