matchbox:
I agree with the above post, it is quite conplicated at times.
I myself have just successfully taken my ADR.
I’ll try and condense it further, not all the drivers where I work have their ADRs and I load all the vehicles before I go out on my own run, so this is the rule of thumb that I apply.
Each substance has a Transport Category. (You’ll see it in the shape of a coloured diamond attached to the package.)
In short, if you see a ‘2’ and its any colour OTHER than GREEN then the maximum weight he can carry without his ADR is 333kg.
If you see a 3, 4, 5, 6, 8 or 9 then the maximum COMBINED weight of any of the previously mentioned categories is 1000kg.
Class 1 is EXPLOSIVES and the limit is 20kg.
Class 7 is RADIOACTIVES.
Again, if in doubt, consult a DGSM.
All vehicles that are concerned in the transportation of hazardous materials must have an ADR kit in the vehicle.
But don’t forget, ALL hazardous substances that are marked hazardous, MUST carry not only a ‘diamond’ but have a Transport Emergency Card with the documents. aka a ‘TREM’ card.
Congrats on passing your ADR.
I’m sorry, but what you’ve written isn’t quite right. You seem to have confused “UN class” and “Transport category.” (There is NO connection between the two.)
The UN class number tells us only the nature (type) of the hazard eg fire or poisoning etc, it tells us NOTHING about the degree of danger.
In all regs, IATA, IMDG, RID and ADR we use packing groups (Roman numerals I, or a II ,or a III) to express how dangerous the “stuff” is. ADR extends the idea of packing groups, which we call “transport categories” which gets us to our load limits. There is only ONE way to know for sure what the load limit is for a particular dangerous good; you must refer to the table in ADR 1.1.3.6.3
Tremcards are only required when the load exceeds the values given in 1.1.3.6.3; if the values are not exceeded, the only document you need is a transport document. You also wouldn’t need an ADR kit or the larger of the fire extinguishers
I’d stress that there is NO rule-of-thumb method for this.
You mentioned UN class 2. The load limits for these depend on whether the gas is “just” a gas, or whether it is a liquified gas, plus which subdivision it belongs to. Not easy!
As for explosives, sorry but you’re wrong. Some of them,1.4 S, can be carried in ANY amount, without orange boards etc.
As for UN classes 3,4,5,6,8&9 sorry but you’re wrong again. The limit for some of these is 0Kg/lit, for some others it is 20Kg/lit, for some it is 333Kg/lit and for others it is 1,000Kg/lit. Some are unlimited. I’d stress that there is NO rule-of-thumb method for this.
Under ADR, a driver isn’t required to know the above, it is for the owner of the vehicle to tell the driver whether he/she is subject to regs.
As you rightly said, consult a DGSA.
dieseldave