Messerschmitt
Guest
I have been asked for only oils that are biodegradable, and often are environmentally friendly. clearly the capitulates are always generic, fruit of copy-paste chain, and no one knows how to explain well what these words mean.
In other words, when they ask me for biodegradability what is the most widespread reference norm (I know there are many)?
But when we talk about eco-compatibility, what do we refer to?
I thought that, for biodegradability, the l-33-a-934 may be appropriate with a percentage greater than 80%, while for eco-compatibility it may be appropriate the German wassergefährdungsklasse or wgk (water risk class), for example the nwg class.
In other words, when they ask me for biodegradability what is the most widespread reference norm (I know there are many)?
But when we talk about eco-compatibility, what do we refer to?
I thought that, for biodegradability, the l-33-a-934 may be appropriate with a percentage greater than 80%, while for eco-compatibility it may be appropriate the German wassergefährdungsklasse or wgk (water risk class), for example the nwg class.