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f-gas and brl 100
01
A leak check is ordinary work. It has to be scheduled and signed off, like any other job. So the logbook belongs with your schedule and your work orders, and you do not need a second subscription or folder next to it.
Fikst is software for your F-gas records, in the same system as your quotes, scheduling, work orders and invoices. From the refrigerant and the charge it works out the CO2 equivalent and the leak check interval, the check schedule lines up the leak checks, your technician records adding and recovering refrigerant on the work order, and you export the records as CSV or Excel.
The intervals and the bans on this page come from Regulation (EU) 2024/573, the EU F-gas Regulation, and apply in every EU member state. The certification parts are Dutch: BRL 100 is the Dutch company certification scheme, and Fikst starts in the Netherlands.
what is changing
02
01
since 31 August 2026
The Dutch BRL 100 scheme is on version 3.0
Company certification in the Netherlands has been extended from F-gases only to propane, CO2 and ammonia as well. The personal certificates have a new structure: A1, A2, B, C, D and E. If you work with natural refrigerants, you now fall under a regime you used to be outside of.
02
since 11 March 2024
Regulation (EU) 2024/573 replaces 517/2014
New in your records: HFOs such as R1234yf and R1234ze also fall under the leak check obligation, from a charge of 1 kilogram. For HFCs the threshold stays at 5 tonnes of CO2 equivalent.
03
since January 2024
In the Netherlands, the Wkb asks for a file at handover
Drawings, material specifications and maintenance data of the installation. The Wkb is the Dutch act on quality assurance in construction. Its file holds largely the same data as your F-gas logbook and your BRL 100 audit file.
The transition dates and what the auditor looks at are in the article on BRL 100 version 3.0.
What may no longer be placed on the market new, or may no longer be refilled, in 2025, 2026, 2027 and 2029, you can read in the article on the F-gas bans per year.
the mandatory intervals
03
The mandatory leak check depends on the charge. For an HFC the CO2 equivalent counts, for an HFO such as R1234yf or R1234ze the number of kilograms. The same cold room with a different refrigerant therefore falls into a different category. In refrigeration this adds up quickly: a cold store is soon above fifty tonnes and then has to be checked every six months.
Hermetically sealed equipment labelled as such has wider limits. Below 10 tonnes of CO2 equivalent or below 2 kilograms of HFO it does not need to be checked for leaks, in a home below 3 kilograms. Fikst only applies that exemption if the label says so, and chooses the check when in doubt.
Note the third column. A fixed leak detection system extends the interval, it does not shorten it. That is often turned around, by suppliers too.
| charge | leak check | with a fixed leak detection system |
|---|---|---|
| HFCs, such as R32, R410A and R134a: in tonnes of CO2 equivalent | ||
| below 5 tonnes | no obligation | not applicable |
| 5 to 50 tonnes | every 12 months | 24 months |
| 50 to 500 tonnes | every 6 months | 12 months |
| 500 tonnes or more | every 3 months | 6 months |
| HFOs, such as R1234yf and R1234ze: in kilograms | ||
| below 1 kg | no obligation | not applicable |
| 1 to 10 kg | every 12 months | 24 months |
| 10 to 100 kg | every 6 months | 12 months |
| 100 kg or more | every 3 months | 6 months |
If the refrigerant contains some of both, as R454B does, both scales count and the shortest interval applies.
Intervals under the F-gas Regulation. This is regulation and not a setting of ours; the system applies it to what is in your register.
The calculation, a blend such as R454B and the rules for hermetically sealed equipment are in the article on leak checks and CO2 equivalent.
For a single unit, work it out with the leak check calculator.
what the system does
04
Do you work with refrigerant? Then we switch on the F-gas records and the tool register for you during the setup.
at the unit itself
05
Your register helps you. A colleague from another company, the building manager or your customer will stand in front of that unit as well. So what is in your register ends up at the installation itself, and you see in time which installations a ban affects.
phase-out/
In the phase-out report you see per installation or per customer which ban from the regulation applies, with refrigerant, GWP and CO2 equivalent. If it already applies, it says advise replacement. If it starts within six years, plan replacement. If Fikst does not know the type of unit, it says so and does not guess. You see it on the customer card too.
qr code on the label/
If you switch on the public page of an installation, the QR code on the label points to it. A technician from another company, the building manager or the owner sees the unit, the refrigerant, the charge and the leak checks without logging in, with your details and certificate number. The name and address of your customer are not on it. If you switch the page off, the printed code stops working.
instruction card/
An A5 card to hang next to the label. It says what to do in case of a fault or leak, the refrigerant with its safety class, the last leak check and who to call. For a flammable or toxic refrigerant, warnings are added. Where the main switch is, you write on it yourself.
Want to know for a single unit how often it has to be checked for leaks? Work it out with the leak check calculator. It is free: you choose the refrigerant, enter the charge and see the interval.
the paperwork around it
06
An auditor for the Dutch BRL 100 scheme or the Dutch STEK quality mark does not only look at the installation. He asks whether your leak detector has been checked and whether your refrigerant stock matches what is on the work orders. Those are the two parts for which most companies have a second package or a spreadsheet. Here they are in the same system as the work order on which they are used.
01 / brl 100
Which tools you have, who has them, and when they are due for calibration again. The interval follows from the type: pressure gauge and vacuum gauge twenty-four months, thermometer, scales and leak detector twelve, and that leak detector checked against NEN-EN 14624, the Dutch edition of the European standard.
The intervals are in the code with the clause they come from, not in a setting that someone can change.
02 / brl 100
A vacuum pump, a recovery unit and a nitrogen kit have no statutory calibration interval. So they do not get one here either. An invented interval fills your register with obligations that do not exist, and after that nobody believes the rest.
A calibration that is due soon or has expired is always shown with text, never with colour alone.
03 / brl 100
Every cylinder carries a running series of weighings: purchase, use, return, disposal, weighing. Every entry builds on the balance the previous one left, and everything is calculated in whole grams, the way money is calculated in cents.
A correction is a new entry. Changing or deleting is not possible, not even in the database.
04 / brl 100
Weighing does not move any gas, so the difference between what the scales say and what the books say is exactly the signal. From one hundred grams it is shown. The difference stays as it is and blocks nothing, because when there is a difference, the scheme asks for a root cause analysis.
A balance that cannot be derived stays empty. Zero means measured and empty, and that is something else.
intervals from BRL 100 v3.0 sections 2.5.4 to 2.5.7, cylinder card and weighing difference from section 3.3
How the register, the cylinder card and the tools work together with your quotes, your schedule and your maintenance contracts, you can read on the page for air conditioning and refrigeration.
the logbook
07
From 5 tonnes of CO2 equivalent, or from 1 kilogram of HFO, the installation needs a logbook with every refill, every recovery and every leak check. Digital is allowed, on one condition: it must be available on site, also when something is broken.
Read that condition again. A machine room in a cold store, a basement under a supermarket: that is where your technician stands, and there is no signal there. A system that only works with a connection lets you down there. The Fikst work order also works without signal: what your technician records goes along as soon as there is a connection again, the customer's signature and completing the job included. What exactly works without signal is on the page about the work order.
the honest limit
Fikst employs an expert and offers support with certifications. Discuss the process, the content and the costs in advance. Read about our certification support.
Fikst keeps your records, but the legal obligation stays yours. We are not a certification body, and a system that thinks along is not a certificate. We make sure your data is right. A check that is coming up, you see in time, and you export the records in one go.