Decision Rule Calculator
Symmetric guard-band software build awaiting named professional review.
Practical laboratory workflows
Useful before you contact a laboratory.
Prepare a clearer technical requirement, understand what evidence to inspect and move into LabTatva’s reviewer-published directory only when you are ready. Core tools work without registration.
Available now
Buyer preparation tools
Available
Testing Requirement Builder
Turn a material, test objective, method, sample and reporting need into a quotation-ready brief stored only on your device.
AvailableLaboratory Quote Comparison
Normalise price, turnaround, method, scope evidence, logistics and reporting across up to three laboratory quotations.
AvailableSample Dispatch Checklist
Generate a printable checklist for sample identity, quantity, packaging, preservation, hazards and chain of custody.
AvailableTest Report Review Checklist
Record a structured review of report identity, method, results, units, uncertainty, conformity statements and authorisation.
AvailableLaboratory Selection Evidence Checklist
Record source, document version, page, capability, method, range and validity evidence reviewed before purchase.
AvailableMethod Reference Organiser
Maintain method identifiers, publishers, revisions and use status without reproducing protected standards.
AvailableAudit Finding Action Planner
Structure evidence, correction, root cause, corrective action, ownership and effectiveness review.
AvailableEquipment Service Record Builder
Record as-found condition, work, parts, as-left condition, verification and return-to-use actions.
AvailableSupplier Laboratory Onboarding
Bring procurement, confidentiality, exact-scope evidence, samples, reports and purchase terms into one checklist.
AvailableSample Retention and Disposal Planner
Calculate an administrative retention date and document storage, return, disposal and authorisation requirements.
AvailableLaboratory Directory
Browse reviewer-published official-source laboratory listings through crawlable discipline and city directories.
AvailableEvidence Methodology
Understand the separation between official-source facts, laboratory claims, operational verification and marketplace feedback.
Expert review required
Professional tools on the review roadmap
These calculators will not be released until their formulas, examples, assumptions and limitations have been reviewed by a qualified laboratory professional.
Measurement Uncertainty
Uncorrelated component workspace awaiting named professional review.
Calibration Interval Planner
Bounded drift-history review build awaiting named professional review.
PT / ILC Performance Workspace
z-score and En arithmetic build awaiting scheme-specific professional review.
Dilution and Solution Calculator
Unit-aware C1V1=C2V2 build awaiting preparation and safety review.
Laboratory Unit Converter
Dimension-checked conversion engine awaiting constants and fitness review.
Detection / Reporting Limit Planner
Explicit multiplier-and-slope arithmetic awaiting method-specific review.
Sample Quantity Estimator
Arithmetic reserve, loss and container build that does not design a sampling plan.