ISO 9001:2015
Quality management systems — Requirements. The general-QMS clauses relevant to a calibration/asset system, and how Open Gauge addresses them.
Summary
ISO 9001:2015 — Quality management systems — Requirements — is published by ISO. It's the generic quality-management standard that ISO/IEC 17025 §8 Option B explicitly builds on ("a laboratory that has established and maintains a management system in accordance with...ISO 9001... also fulfils at least the intent" of 17025's own management-system clauses) — see ISO/IEC 17025. Unlike 17025, ISO 9001 isn't specific to laboratories: it applies to any organization providing products or services, and most of its content (leadership commitment, customer focus, HR competence records, internal audits, management review, risk-based planning) governs how the organization runs its business, not something a LIMS can satisfy on its own — the same scope boundary explained in the overview.
The clauses below are the ones with a direct operational/record-keeping component a software system actually implements: monitoring/measuring equipment (7.1.5 — effectively a condensed version of what ISO/IEC 17025 covers in full), documented-information control (7.5), output identification/traceability (8.5.2), release and nonconformity handling (8.6, 8.7), and performance monitoring / corrective action (9.1, 10.2).
Compliance
| Clause | Requirement | Status | Where addressed |
|---|---|---|---|
| 7.1.5 | Measuring equipment traceable, status identified, safeguarded from tampering; impact of a later-found fault assessed retroactively | ⚠️ Partial | Same traceability/identification/tamper-safeguard mechanisms as ISO/IEC 17025 §6.4–6.5; no retroactive impact-assessment workflow |
| 7.5.1–7.5.3 | Documented information identified, versioned, reviewed, access-controlled, retained, protected from unintended alteration | ✅ Met | Immutable calibration records, audit log, certificate versioning, RBAC |
| 8.5.2 | Outputs uniquely identified; traceability maintained where required | ✅ Met | Asset IDs, QR codes, certificate numbers, reference-standard linkage |
| 8.6 | Evidence of conformity to acceptance criteria retained; release traceable to the authorizing person | ✅ Met | conformity_statement + performer identity/signature on every certificate |
| 8.7 | Nonconforming outputs identified and controlled, not unintentionally used; documented | ✅ Met | Failed calibrations are never blocked or hidden — decision rule and pass/fail are recorded and printed |
| 9.1 | Determine what is monitored/measured and evaluate results | ⚠️ Partial | Health scoring monitors asset/calibration performance; no QMS-level (org-wide process) monitoring |
| 10.2 | Nonconformities tracked through to a documented corrective action and effectiveness review | ❌ Not met | No CAPA (corrective/preventive action) tracking feature |
Detail
Monitoring and measuring resources
"7.1.5.2 ...measuring equipment shall be: a) calibrated or verified...against measurement standards traceable to international or national measurement standards...; b) identified in order to determine their status; c) safeguarded from adjustments, damage or deterioration that would invalidate the calibration status... The organization shall determine if the validity of previous measurement results has been adversely affected when measuring equipment is found to be unfit for its intended purpose, and shall take appropriate action as necessary."
This is a condensed version of what ISO/IEC 17025 §6.4–6.5 covers in full detail, and Open Gauge addresses it the same way: calibration and traceability records per asset, QR-coded status identification, and immutable calibration history (nothing can silently invalidate a past result). The last sentence — reassessing whether prior measurements taken with an instrument later found to be out of tolerance are now suspect — is the same gap noted for 17025 §6.4.9: Open Gauge doesn't automatically flag calibrations or downstream data that predate a discovered fault.
Documented information
"7.5.3.2 ...the organization shall address...c) control of changes (e.g. version control)... Documented information retained as evidence of conformity shall be protected from unintended alterations."
Calibration records are immutable (a correction creates a new version, never an overwrite — see ISO/IEC 17025 §7.5), certificates carry an incrementing version in their certificate number, and every change is captured in the audit log with actor, timestamp, and before/after state — satisfying both the version-control and unintended-alteration requirements together.
Identification and traceability
"8.5.2 ...The organization shall control the unique identification of the outputs when traceability is a requirement, and shall retain the documented information necessary to enable traceability."
Every asset has a unique asset_id and QR code; every calibration produces a uniquely numbered
certificate (OG-CAL-{asset_id}-v{version}) linked back to the reference standard used — the same
mechanism documented under ISO/IEC 17025's traceability chain.
Release of outputs
"8.6 ...The organization shall retain documented information on the release of products and services. The documented information shall include: a) evidence of conformity with the acceptance criteria; b) traceability to the person(s) authorizing the release."
A calibration certificate is the release record for a calibration: it carries the conformity statement (the acceptance criteria and whether they were met) and the performer's identity plus digital signature — both required by (a) and (b) together, on the same document.
Nonconforming outputs
"8.7.1 The organization shall ensure that outputs that do not conform to their requirements are identified and controlled to prevent their unintended use or delivery... 8.7.2 The organization shall retain documented information that: a) describes the nonconformity; ...d) identifies the authority deciding the action."
A failed calibration is never blocked from saving and never silently hidden — see
Decision rules & conformity: saving one requires
an explicit "Save anyway" confirmation naming the specification and decision rule, and the
resulting conformity_statement (which specification, which rule, pass/fail) is retained and
printed on the certificate exactly as a nonconformity record would need to be.
Monitoring and measurement
"9.1.1 The organization shall determine: a) what needs to be monitored and measured; ...The organization shall evaluate the performance and the effectiveness of the quality management system."
Health scoring and the dashboard monitor asset- and calibration-level performance (drift, overdue rates, health trends) continuously — but this is monitoring of the assets under management, not of the organization's own quality management system (audit outcomes, process effectiveness, objective attainment), which 9.1 is actually about. Open Gauge has no feature addressing the latter; it isn't in scope for an asset/calibration system.
Corrective action
"10.2.1 When a nonconformity occurs...the organization shall: a) react...and correct it; b) evaluate the need for action to eliminate the cause(s)...10.2.2 The organization shall retain documented information as evidence of: a) the nature of the nonconformities and any subsequent actions taken; b) the results of any corrective action."
Gap. Open Gauge records that a nonconformity occurred (a failed calibration, a voided record) but has no CAPA workflow: no way to open a corrective action against a nonconformity, assign an owner, record root-cause analysis, or track it to a documented, reviewed closure. Today this has to be managed entirely outside Open Gauge.
Verified against ISO 9001:2015(E) and the Open Gauge codebase
(apps/api/app/models/calibration.py, apps/api/app/models/asset.py,
apps/api/app/services/certificate_service.py, apps/api/app/models/audit_log.py,
apps/api/app/health/) on 2026-07-29.
EA-4/02
Evaluation of the Uncertainty of Measurement in Calibration — the European accreditation policy for applying GUM in practice, and how Open Gauge implements it.
ISO 10012:2003
Measurement management systems — Requirements for measurement processes and measuring equipment. How Open Gauge supports an organization's internal metrological function.