SUCCESS STORY / LABORATORY CHEMICAL MANAGEMENT
Every gram of hazardous reagent accounted for
At SUEZ’s Shanghai site, three laboratories keep hundreds of hazardous reagent bottles. Since 2022, Bluetooth smart locks, an approval app and RFID-tagged bottles that are weighed on the way out and back have replaced padlocks and paper logs.
SUEZ is now part of Veolia. Accurate digital records of how much of each reagent was used also make the system valuable for R&D laboratories.
- Customer
- SUEZ
- Industry
- Environmental services
- Location
- Shanghai, China
- Solution
- Lab management
- Year
- In use since 2022
RESULTS AT A GLANCE
A complete record of every reagent, with no extra work
In daily use at SUEZ’s Shanghai laboratories since 2022.
THE CHALLENGE
Hazardous reagents, recorded by hand
Three laboratories, each with its own administrator, keep toxic and hazardous reagents, liquids and powders, in explosion-proof cabinets and refrigerators.
Paper logs
Who took what, and how much, was written down by hand, and often wrongly.
Bottles not returned
A bottle taken and never brought back was hard to trace, and a real safety risk.
“Two people, two locks”
The rule meant a manager walking to the cabinet with the technician every time.
Counting by hand
Stocktakes took time, and there was no data to guide what to order.
The cabinets are custom units connected to the ventilation system and could not be moved or modified. So the solution works around them: a smart lock for the door, an identity on every bottle.



THE SOLUTION
Lock, tag, weigh: every bottle accounted for
Four pieces work together. Together they replace padlocks and paper logs with approvals, identity and weight.
Bluetooth smart lock
Replaces the padlock on each cabinet. Opens only with a short-lived code from an approved request.
HardwareRFID tag on every bottle
A UHF tag on the base gives each bottle a unique identity from the day it is received.
HardwareWeighing platform and tablet
A platform with a built-in reader beside the cabinet. A tablet guides every check-out and return.
HardwareApp and management platform
A mobile app for requests and approvals, and a web platform for stock, logs, reports and alerts.
SoftwareAt the cabinet
- Bluetooth smart lock
- RFID tag on each bottle
- Weighing platform + reader
- Industrial tablet
Connectivity
- Bluetooth to the lock
- Wi-Fi or wired to the platform
Management platform
- Core database
- Mobile app: staff and manager
- Web reports and alerts
HOW IT WORKS
One bottle, from receipt to return
Follow a single bottle through the system. Select a step, or let it play.
What the system recordsIllustrative example
- 1Bottle 0042 registered · 500.0 g
- 2Request approved by manager
- 3Lock opened · code valid 5 minutes
- 4Checked out by Technician A · 500.0 g
- 5Returned · 487.6 g · used 12.4 g
- 6Locked · record complete
FROM RECORDS TO DECISIONS
Intelligent analysis on top of the data
Because every movement is recorded, the platform can do more than keep the books.
Buy the right amount
Monthly use vs reorder level · IllustrativeOrder quantity and frequency follow real usage for each reagent.
Place by use
Use frequency by shelf position · IllustrativeThe most used reagents are placed where they are quickest to reach.
Catch the unusual
Access over 24 hours · IllustrativeOut-of-pattern access is detected and alerted straight away.
THE BENEFITS
What changes for each team
Safety and compliance
Digital locks and approved requests
Every access is approved and logged, and two-person control is kept.
Laboratory staff
Quick, guided and accurate
Request on a phone, weigh at the bench, and the record writes itself.
Managers
Control without the walk
Approve from anywhere and see live stock, expiry dates and logs.
Purchasing and R&D
Decisions from data
Order from actual usage, and trust the consumption records behind R&D work.
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Tagged electronic-gas cylinders verified by the customer’s gas cabinet: the right gas, every time.
Baosteel Gas
Patented UHF tags on steel cylinders, read 100% at the gate: every cylinder on record from filling to delivery.
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