Summary of CLP Building Blocks

CLP is based on a number of building blocks, many of which come directly from GHS, with a few items from CHIP.

Items derived from GHS include:

  • specific substance and mixture identifiers
  • CLP-GHS classifications
  • Signal Word
  • Pictograms
  • Hazard Statements
  • P Statements
  • the concept of Multiplication factors (M-factors) for aquatic toxins which are more hazardous than normal Acute Aquatic Cat 1. H400 and Chronic Aquatic Cat 1. H410 classification describes
  • the concept of different cut-off values for substances where normal classification does not describe the hazard adequately, which in CLP are called Specific Concentration Limits (SCLs)

It should be noted that not all GHS classifications are brought into CLP.

Items derived from CHIP include:

  • EUH labelling statements
  • Harmonised Classifications (substances classified differently to normal classification, including substances with SCLs and M-factors)

Both the EUH labelling statements and the Harmonised Classifications are permissible under GHS.

However, CLP has an extra requirement which is outside the scope of GHS, which is the requirement to notify substances, by themselves, in mixtures and in articles where they can be released, to ECHA.

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