Grain Size Chart
Product Code : LSK-SM-10668
Grain Size Chart (SKU LSK-SM-10668) is a pocket-sized comparison chart with real sieved sediment grains mounted in recessed cavities, used by field geologists and students to describe the grain size of sand and sediment samples. The grains are graded to the Wentworth scale. It serves geology, civil engineering and TVET site investigation courses. Science Lab Supplies quotes and dispatches it from Ambala, India for colleges, tender contractors and distributors.
Specifications
The table breaks the Wentworth comparator into its stated features. In short, it is a pocket-sized chart whose recessed, die-cut cavities hold precision-sieved sedimentary particles, permanently mounted so each size class stays in place for side-by-side comparison with a field sample.
| Specification | Value |
|---|---|
| SKU | LSK-SM-10668 |
| Format | Pocket-sized chart |
| Sample cavities | Recessed, die-cut |
| Reference particles | Precision-sieved sedimentary particles |
| Mounting | Permanently mounted to the chart |
| Grading system | Wentworth |
| Intended use | Describing samples in the field |
| Supplied by | Science Lab Supplies, Ambala, India |
Applications and Experiments for the Grain Size Chart
Holding a sample beside the mounted grains, ideally with a hand lens, lets the user name its size class quickly and consistently. That is the first step in describing sands, silts and gravels in outcrops, trial pits and cores, and it supports field notes, sediment logs and sample labels.
- B.Sc. / M.Sc. geology: describing sedimentary rocks and loose sediments on field mapping courses, with grains viewed through a Hand Lens with White Plastic Handle.
- B.Tech / B.E. civil engineering: visual description of sandy soils before laboratory sieve analysis, after dividing the sample in Sample Splitters (Riffle Boxes).
- TVET site investigation and survey modules: consistent soil and aggregate descriptions in field logs.
Standard Scope of Supply
The Grain Size Chart is supplied as a single unit as described above; any optional accessories are listed on the quotation. Class sets can be quoted in any number, and the geotechnical gauge or sand gauge chart can be added for a fuller field kit.
Packing, MOQ and Lead Time
Request a quotation for one chart or a full class set; it lists the packing, delivery time and price for the quantity you name. Related field charts and density kits can go on the same document, which helps when a field course needs a single TVET lab equipment supplier.
As a registered exporter with an Importer-Exporter Code, Science Lab Supplies can ship to buyers in Egypt, Iraq, Nigeria, Kenya, Ghana and Ethiopia. Science Lab Supplies is registered for GST (GSTIN 06ADEPJ0574F2ZU). Numbers for a field class can be sent via the contact page, single charts placed in the enquiry cart, and tendered orders submitted on the lab tender page.
Frequently Asked Questions
What grading system does the chart use?
The mounted particles are classed according to the Wentworth grading system, the size scale geologists use to name gravel, sand and silt fractions in sediment descriptions.
Are the grains real sediment or printed images?
Real. The cavities are filled with sieved sedimentary particles that are permanently mounted, so users compare their sample with actual grains rather than a picture.
Who supplies the Grain Size Chart?
Science Lab Supplies is the supplier, working from Ambala, India. Universities, colleges, training institutes, contractors and distributors can order one chart or a class set and receive a quotation stating the quantity and packing.
How is it different from the Sand Gauge Chart?
The Grain Size Chart focuses on Wentworth size classes shown by mounted grains. The Sand Gauge Chart adds particle shape panels, a field checklist and reference tables on its reverse.
Related Field Geology and Sediment Description Tools
These items extend the chart into a field description kit and a route back to the laboratory: a sand gauge and soil card for the field, grading and drying equipment for returned samples, a rock collection and magnifiers for close inspection. All of them can be added to one quotation.
- Sand Gauge Chart — particle shape panels from angular to rounded, plus a field checklist.
- Geotechnical Gauge — lanyard card with 0–6 in and 0–110 mm edge scales.
- Particle Size Analysis Test Set — bath sensitivity of ±0.2 °C at 20 °C for hydrometer readings.
- Drying Oven — 2.5 kW heater elements with blower-fan air circulation.
- Rocks Collection Set — specimen collection for rock identification and classification lessons.
- Double Lens Folding Pocket Magnifier — 5X single lens or 10X combined, folding into its case.
- Tripod Magnifier — 18 mm aperture with an undistorted field.
Browse the full Soil Mechanics range, the Light and Optics range for lenses used in field description, or all TVET lab equipment.
Last updated: 9 October 2026
