Quality

NABL Accredited · TC-12925

Operated by Greenlink Analytical and Research Laboratory India Pvt Ltd, Coimbatore. Accredited under ISO/IEC 17025 by NABL (National Accreditation Board for Testing and Calibration Laboratories, a constituent of QCI).

Scope of accreditation

Our current NABL scope covers chemical and microbiological analysis of drinking water (IS 10500:2012), packaged water, surface water, wastewater, soil substrates, and coir / cocopeat horticultural media. Specific parameter coverage varies by matrix.

For each test panel sold on this site, we declare per-parameter accreditation status on the product page (search for "non-accredited" tags). The issued report repeats this declaration so auditors and regulators see exactly what is and isn't backed by NABL.

The complete, current scope of accreditation is available from the NABL public directory at nabl-india.org — search by TC-12925.

Quality system

• Method validation: every method is validated against APHA / BIS / ISO reference procedures, with documented limits of detection, quantification, repeatability, and reproducibility.
• Internal QC: every analytical batch carries a method blank, a duplicate, and a certified reference material. Out-of-spec results trigger a documented investigation before any report is released.
• Proficiency testing: we participate in NABL-mandated proficiency-testing schemes (BIS/NABL/ERA) at the required frequency.
• Sample retention: samples are retained 15 days post-report. Raw data and reports are retained 7 years internally per NABL norms.

Documents

Current NABL certificate and scope-of-accreditation document are published on our corporate site at greenlink.in. Need a hard copy of the scope letter for procurement or audit purposes? Contact us — we email signed scope letters within one working day.