It's a common practice to use CLP label template for 10% concentration of hazardous oil in non-hazardous base provided by most of the suppliers, even for products containing lower percentage of oil. While it's perfectly fine to use CLP information provided by supplier for your product made with 10% oil, it might not be the best practice to use it for lower percentages e.g. 5%. To show you an example on how the classification changes with different percentages, I've prepared a classification of Pomegranate Noir fragrance oil from one of the larger suppliers based in UK. Below I will show you three CLP labels in different concentrations for the same oil.
Firs label is a CLP label for a product made with 10% oil in non-hazardous base. As you can see, our mixtures triggers two hazard statements and two pictograms. First one is for skin sensitisers and second for environmental hazard.
Our next label is a CLP label for product made of 5% oil in non-hazardous base. As we can see below, our product now triggers only 1 pictogram and 2 hazard statements. Our classification for environmental hazards has dropped and moved from category chronic 2 to category chronic 3.
Last label is a CLP label made of 3% oil in non-hazardous base. As we can see below in this case, our mixture doesn't trigger any pictograms. We do still have our mixture classified as hazardous to environment category chronic 3, but our sensitiser is now in such a low concentration, that is has moved to EUH208 statement: "Contains... May produce an allergic reaction."
As you can see classification of this particular mixture changes significantly when we lower the percentage of hazardous oil within our product. It's important to make sure our products are classified correctly to avoid over-classification.