What is a LIMS?
A laboratory information management system (LIMS) is software that runs the core work of a laboratory. Think of it as an ERP built for labs: it handles sample registration and tracking, tests, results and reports.
A testing lab, a research lab and a quality control lab inside a factory can all use one. In each case it keeps the daily work in order and makes every result traceable.
Why do laboratories need a LIMS?
Many laboratories, especially in India, still run on paper registers, Excel sheets and basic software. That works for a few samples a day. It breaks down as volume grows.
These problems usually push a lab toward a LIMS:
- Manual data entry errors: copying readings from instruments into spreadsheets causes mistakes
- Poor sample traceability: with paper tracking it is hard to find a sample or trace its history
- Slow report generation: building test reports by hand in Word or Excel takes analyst time
- Compliance work: NABL, ISO 17025 and GLP need careful documentation that is hard to keep up by hand
- Limited visibility: management cannot see workload, backlogs or turnaround at a glance
What to look for in a LIMS
Not every lab needs every feature below. Use this as a checklist and decide which parts matter for your scope.
1. Sample management
At its base, a LIMS tracks each sample through its whole life:
- Sample registration: a unique ID, client details and the tests requested
- Barcode or QR labels: printed labels for physical tracking
- Chain of custody: every handover and movement of a sample recorded
- Storage and retention: where a sample is kept and for how long
- Disposal records: when and how a sample was disposed of
2. Test management
The testing workflow itself:
- Test configuration: methods, parameters, specifications and acceptance limits
- Worksheets: tests assigned to analysts, with progress tracked
- Result entry: typed in, or captured from instruments where that is possible
- Calculations: results calculated from the method's readings, including uncertainty of measurement where it applies
- Review and approval: results checked and approved before they are final
3. Instruments
Some labs also want the LIMS to deal with instruments. Ask whether a system offers:
- Data capture: readings sent from instruments to the LIMS
- Calibration schedules: due dates and certificates
- Maintenance logs: service history for each instrument
4. Quality assurance and quality control
- Internal QC: control charts, duplicates and spike recovery
- Proficiency testing: records of PT rounds and results
- Non-conformance: deviations and corrective actions
- Audit trail: every entry, change and deletion logged with time and user
5. Reporting
Reports are often where a LIMS saves the most time day to day:
- Formatted test reports: generated from approved results
- Report templates: formats for different clients or standards
- Digital signatures: approval and signing inside the system
- Batch reports: several reports at once
- Dispatch tracking: when each report went to the client
6. Document control
- SOPs and work instructions: with version control
- Method records: test method references and validation records
- Training records: staff competency and training
- Accreditation documents: certificates and licences
LIMS and NABL documentation
For Indian laboratories working toward NABL (National Accreditation Board for Testing and Calibration Laboratories) accreditation, a LIMS makes record-keeping much easier. NABL assesses labs against ISO/IEC 17025, and several of its requirements match what a good LIMS records.
Documentation
ISO 17025 asks for controlled documents with version management and approval. A LIMS can keep these in one place with access logs.
Traceability
Each result must be traceable from sample receipt to the final report. A LIMS keeps that chain in one record instead of across registers.
Audit trail
Changes to data need to be recorded. A LIMS logs who did what, when, and which values changed. Analysts do not have to keep logs by hand.
Competency records
Staff performing tests need documented competency. Some LIMS track analyst training and authorisation for each method.
Uncertainty of measurement
Results must include measurement uncertainty where it applies. A LIMS can calculate it from the parameters you configure.
What to ask any LIMS vendor
A feature list tells you little. These questions tell you more:
- Does it calculate from your methods' readings? Ask to see one of your own tests, from raw readings to the final result.
- Are the limits from your standards loaded, with versions? For example IS 10500 for drinking water. When a standard is revised, how is the new version added, and do old reports keep the old limits?
- What does the report look like? Ask for a sample in your format, with the ULR number and a QR code a client can scan to verify it.
- Does it run offline? Check what happens when the internet goes down in the middle of a working day.
- How are backups and updates handled? Who takes backups, where are they kept, and how are updates installed without losing work?
- Who supports it? Ask who you call when something breaks, and how quickly they respond.
Want to see one?
If your lab is looking at a LIMS, for NABL work, fewer errors or more samples a day, we make one. Tanush LIMS is built for environmental, water, food, soil and air testing labs, and for calibration labs, in India: worksheets that calculate results from readings, limits checked against IS 10500, CPCB, NAAQS and FSSAI, and NABL-format reports with ULR number. It runs on the lab's own PC, even without internet, or in the cloud.
Book a 20-minute demo with one of your own report formats.