Chapman Flask Manufacturer,Supplier and Exporter in India
Product Code : EL-M-8888
Jlab Export is a leading Chapman Flask Manufacturer,and suppliers in India
Chapman Flask (code EL-M-8888) is a 450 ml graduated flask used, in line with standard methods of test, to find the approximate apparent specific gravity of fine aggregate, the approximate percentage of voids in inundated fine aggregate and its surface moisture. It is graduated at 200 ml between the bulbs and from 375 to 450 ml in 1 ml divisions above the second bulb. JLab makes it in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Capacity | 450 ml |
| Graduation between bulbs | 200 ml |
| Upper scale | 375–450 ml in 1 ml divisions, above the second bulb |
| Tests | Apparent specific gravity, voids in inundated fine aggregate, surface moisture |
| Material tested | Fine aggregate |
| Quality check | Each Chapman flask is visually inspected before dispatch |
| Pack quantity | Each (sold individually) |
| Minimum order quantity | 50 units |
| Dispatch time | Usually 3–5 working days |
| Product code | EL-M-8888 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
What Is a Chapman Flask Used For?
Civil engineering and materials testing laboratories use it to check sand for concrete and mortar. Water is poured in to the 200 ml mark, a weighed sample of fine aggregate is added, and the flask is rolled to release trapped air; the level then read on the upper scale gives the volume displaced, from which specific gravity follows. Readings taken with moist sand indicate its surface moisture. Rinse out all sand after each test so the neck graduations stay readable.
Frequently Asked Questions
What is the capacity of the Chapman Flask?
Its capacity is 450 ml. It carries a 200 ml graduation between the bulbs and an upper scale from 375 to 450 ml marked in 1 ml divisions.
Which properties of fine aggregate can it measure?
It is used for the approximate apparent specific gravity of fine aggregate, the approximate percentage of voids in inundated fine aggregate, and the surface moisture in fine aggregate.
Who manufactures the Chapman Flask?
JLab, the trading name of Jain Laboratory Instruments Pvt Ltd, manufactures it in Ambala, Haryana, alongside other testing apparatus for aggregate, cement and concrete.
OEM Manufacturer
The flask is produced by Jain Laboratory Instruments Pvt Ltd, incorporated in 2017 and trading as JLab from Hargolal Road, Ambala, Haryana. Engineering colleges, polytechnics and site laboratories that buy factory-direct can reorder matching flasks from the same maker as their testing work grows; institutions purchasing by tender will find details on the lab tender page. JLab exports worldwide, including to Botswana in Southern Africa, the UAE in the Middle East, Bhutan in South Asia and Poland in Eastern Europe.
Related Aggregate and Cement Testing Apparatus
- Le Chatelier Flask — a graduated flask for the specific gravity of hydraulic cement.
- Specific Gravity Bottle — a spherical-pattern bottle for specific gravity determinations.
- Coarse Aggregate Density Test Set — density testing of coarse aggregate with a buoyancy balance.
- Length Gauge — measures the elongation index of aggregate particles.
Browse more testing apparatus in Materials, under Chemistry Lab Equipment.
Request a Quote
Order with Add To Cart or send an enquiry through the contact page, giving the number of flasks, any related aggregate test apparatus needed, and the delivery location.
Last updated: 25 October 2026
