Liquid Limit Test Lab — NABL Certified | Jancy Labs
NABL Accredited Laboratory (Certificate No. TC-12176) as per ISO/IEC 17025:2017
Designing a subgrade or foundation on clay soil without knowing the Liquid Limit? That's a settlement failure you won't see coming. Jancy Labs provides accurate liquid limit testing as per IS 2720 Part 5 — Casagrande Method and Cone Penetrometer Method — with NABL-certified reports ready for NHAI, PWD, and PMGSY submissions.
Jancy Labs provides accurate liquid limit testing as per IS 2720 Part 5 — Casagrande Method and Cone Penetrometer Method — with NABL-certified reports ready for NHAI, PWD, and PMGSY submissions.
Every Liquid Limit test is conducted on calibrated Casagrande apparatus by a qualified Materials Engineer. Your report carries NABL symbol TC-12176 — accepted at every site approval desk. Get your Liquid Limit test done today →
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What Is a Liquid Limit (Atterberg Limit) Test?
The Liquid Limit test tells you the exact moisture content at which your soil transitions from plastic to liquid behaviour — critical for classifying soil and designing safe road subgrades, embankments, and foundations on cohesive ground.
Your soil sample is prepared and tested on a Casagrande apparatus or Cone Penetrometer to find this boundary moisture content per IS 2720 Part 5.
Therefore, if you get this value wrong — or skip it entirely — it invalidates your soil classification, puts your pavement design at risk, and forces your DPR submission back to you.
Applicable Standards
IS 2720 (Part 5): 1985
Methods of Test for Soils — Determination of Liquid and Plastic Limit. IS 2720 Part 5 standardises both the Casagrande and Cone Penetrometer methods — ensuring your Liquid Limit result is consistent, reproducible, and accepted by all approving authorities.
Strict Compliance — No Shortcuts
At Jancy Labs, every Liquid Limit test is conducted strictly as per IS 2720 (Part 5): 1985 — no shortcuts, no omissions. Download IS 2720 Part 5 from BIS: bis.gov.in
Why the Liquid Limit Test Matters
- NHAI / PWD Road Projects: Your DPR soil investigation demands Liquid Limit as a mandatory input for soil classification and subgrade design. Your DPR soil investigation report cannot be submitted without it.
- PMGSY Rural Roads: Atterberg limits including Liquid Limit are required for all PMGSY soil reports in cohesive soil zones across Tamil Nadu.
- Embankment and Fill Design: Liquid Limit determines whether your fill material is suitable for compaction — a wrong value leads to embankment instability.
- Foundation Engineering: Structural engineers use Liquid Limit along with Plasticity Index to classify clay soils and select appropriate foundation types.
- Soil Stabilisation: Lime and cement treatment dosage for black cotton soil is directly linked to Atterberg limit values — Liquid Limit is the starting point.
- Project Compliance: NHAI, PWD, and PMGSY field engineers routinely verify Atterberg limit data in NABL-certified test reports before clearing construction stages.
⚠️ Submitting a soil report without a valid NABL-certified Liquid Limit value is the fastest way to get your DPR rejected at the first technical review. View all Soil Testing Services →
Why Choose Jancy Labs for Liquid Limit Testing?
When your road project's soil classification depends on Liquid Limit data, one incorrect result invalidates your entire Atterberg limits report.
- Calibrated Casagrande apparatus and Cone Penetrometer — both dedicated to IS 2720 Part 5 Liquid Limit procedure.
- Liquid Limit test conducted by both Casagrande and Cone Penetrometer methods as per IS 2720 (Part 5): 1985.
- Every test report signed by a qualified Materials Engineer — not a technician.
- NABL accredited laboratory — Certificate TC-12176 | ISO/IEC 17025:2017.
- Reports accepted by NHAI, Tamil Nadu PWD, and PMGSY field offices.
- Trusted for Liquid Limit and Atterberg limit testing by highway and infrastructure project engineers across Tamil Nadu.
Jancy Labs has been built on one principle: every result you receive must hold up at a site inspection, a DPR review, or a client audit. Our NABL accreditation guarantees that. See our NABL accreditation → · Talk to our team today →
How to Get Your Liquid Limit Test Done
Send Your Sample
Courier, transport, or direct delivery. Seal your soil sample immediately after collection in an airtight container or double zip-lock bag to preserve moisture content before dispatch.
We Test It
Our Materials Engineer runs multiple trial runs on the calibrated Casagrande apparatus to establish a reliable flow curve as per IS 2720 Part 5, then computes and certifies the result.
Certified Report Delivery
You get your certified Liquid Limit report — courier or collect directly — carrying NABL symbol TC-12176, ready for NHAI, PWD, and PMGSY submission.
Our Liquid Limit Test Procedure — as per IS 2720 (Part 5): 1985
Casagrande Method
- Air-dry the soil sample and pulverise. Sieve through 425 micron IS sieve.
- Mix sieved soil with distilled water to form a uniform paste at high moisture content.
- Place soil paste in the Casagrande brass cup. Cut a groove using the standard grooving tool.
- Drop the cup at 2 drops per second. Record the number of blows for groove closure.
- Collect soil from the closed groove zone. Determine moisture content.
- Repeat trials at different moisture contents — minimum 4 data points across 10–40 blows range.
- Plot flow curve: number of blows vs moisture content on semi-log graph.
- Read Liquid Limit as moisture content corresponding to 25 blows on the flow curve.
Frequently Asked Questions
How long does a Liquid Limit test take at Jancy Labs?
Can I send soil samples by courier to Jancy Labs for Liquid Limit testing?
Is your Liquid Limit test report accepted by NHAI and PWD?
Do you conduct both Casagrande Method and Cone Penetrometer Method for Liquid Limit testing?
How much soil sample do I need to send for a Liquid Limit test?
Request Your Liquid Limit Test Today
Your Liquid Limit report is the foundation of accurate soil classification — don't let missing Atterberg data delay your project approval. Submit your sample today and receive a NABL-certified Liquid Limit report so that NHAI, PWD, and PMGSY will accept, first time and every time.
| Contact Method | Details |
|---|---|
| 📞 Phone | +91-8680049004 / +91-9994421275 |
| +91-9994421275 | |
| ✉️ Email | jancylabsmdu@gmail.com |
| 📍 Address | No.6, Ganesh Nagar 3rd Street, Surya Nagar, Alagar Kovil Main Road, K.Pudur, Madurai — 625007 |
| 🕐 Hours | Monday to Saturday | 10:00 AM – 6:00 PM |
Request Your Liquid Limit Test
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