Free tools for testing labs
Small tools for the jobs labs still do by hand: making a ULR, checking water results against IS 10500, working out measurement uncertainty and keeping a cube register. The calculators run in your browser; the Excel files are yours to keep and change.
For testing and calibration labs.
NABL ULR number generator
Make or check a ULR in NABL's June 2026 format for TC, CC and new NABL certificate numbers.
Open the toolIS 10500 water test checker
Type your drinking water results and see which are within acceptable, within permissible or over the limit.
Open the toolMeasurement uncertainty calculator
Build an uncertainty budget from repeat results and certificate, tolerance and resolution terms, with k and U.
Open the toolCube test register (Excel)
Due dates from casting, strength to IS 516 at 0.5 N/mm², the 15 percent check and overdue alerts.
Open the toolFor manufacturers.
These live on tanushdigital.com, the parent site, with our ERPNext work.
ITC-04 due date calculator
Your ITC-04 due dates and the date each job-work challan must come back by.
Open on tanushdigital.comJob work register (Excel)
Track material at each job worker, what came back, what is short and what is about to become a deemed supply.
Open on tanushdigital.comPhysical stock verification format (Excel)
Count, recount and compare with book stock, with differences in quantity, value and percent.
Open on tanushdigital.comTools are a convenience, not a validated system. Check any result against your own method before you rely on it, as ISO/IEC 17025 clause 7.11.2 asks for any software a lab uses. Want all of this done inside one system? See Tanush LIMS or book a demo.