Histopathology — NABL criteria
NABL 112A, section 7.5 — Technical Requirements, Discipline Wise
Checked against NABL 112A (Issue 01, 18-Dec-2024) · page updated 23 September 2026
These are the requirements NABL applies specifically to Histopathology, quoted from NABL 112A. They sit on top of the general requirements every accredited laboratory must meet, not instead of them.
What NABL 112A requires of this discipline
- Safety of personnel from exposure to infectious & chemical hazards (such as formalin & xylene) must be ensured and an efficient exhaust & fume extraction system shall be in place.
- A separate room shall be allotted for gross examination of tissue, equipped with a fume hood, efficient exhaust, ensuring negative pressure.
- The record of formalin vapour levels covering activities like grossing, change of formalin and sample discarding shall be maintained.
- Table 4 A separate well-ventilated place shall be dedicated for storage of wet specimens.
- All chemicals shall be handled, stored and disposed according to local regulatory requirements.
- Microscope shall have a scanning lens,10X and 40X objective.
- Spare bulbs and fuses shall be available in the laboratory.
- The laboratory shall ensure safe handling of paraffin wax to reduce the risk of molten wax at work place.
- In the case of specimen mislabeling or issues in specimen identification and traceability, the specimen shall not be accepted for testing without reconciling all Appropriate temporary labelling and if necessary, processing of the specimen may also be undertaken.
Showing 9 of 26 discipline-specific requirements identified in section 7.5. Read the full section in the official document before an assessment — this page is a guide to it, not a replacement for it.
Verbatim excerpts from NABL 112A - Specific Criteria for Accreditation of Medical Laboratories, Issue 01, 18-Dec-2024, section 7 (Technical Requirements - Discipline Wise). Downloaded from nabl-india.org 2026-09-23. Download the current version from NABL →
Records this discipline still has to produce
The discipline criteria above are additional. Every accredited laboratory, in every discipline, must still maintain the general record set:
- NABL Internal Audit Checklist for Medical Laboratories
- Internal Quality Control (IQC) Record and Levey–Jennings Chart
- EQA / Proficiency Testing Participation Record
- Method Verification Record
- Method Validation Record
- Measurement Uncertainty (MU) Record
- Comparability of Results Record
- Quality Indicators Record
- Sample Rejection Log and Rejection Criteria
- Primary Sample Collection Manual
Other disciplines
- Clinical Biochemistry Cl. 7.1
- Clinical Pathology Cl. 7.2
- Haematology & Immunohaematology Cl. 7.3
- Microbiology & Infectious Disease Serology Cl. 7.4
- Cytopathology Cl. 7.6
- Flow Cytometry Cl. 7.7
- Molecular Diagnostics Cl. 7.8
- Histocompatibility and Immunogenetics Cl. 7.9
- Cytogenetics Cl. 7.10
- Point of Care Testing (POCT) Cl. 7.11
HealthFlow is not NABL accredited and is not an accreditation body. Using it does not make a laboratory accredited or compliant. These pages describe what the standard requires; meeting it is the laboratory's own responsibility.
What the software contributes is evidence produced by normal work: turnaround time measured per test, reports versioned and locked on authorisation with dual signatures, every report access written to an append-only audit trail enforced at the database and retained two years, and full export whenever you want it.