1.55 nominal property 
Property of a phenomenon, body, or substance, where the property has no magnitude. 
 Example 2: Colour of a paint sample. 
Example 3: Colour of a spot test in chemistry. 
Example 5: Sequence of amino acids in a polypeptide 
Note 1: A nominal property has a value, which can be expressed in words, by alphanumerical codes, or by other means. 
Note 2: ‘Nominal property value’ is not to be confused with nominal quantity value
Note 3: A nominal property has no unit. 
Source: [VIM 1.30] with Examples 1 and 4 omitted, and Note 3 added. 
1.55 nominal property 
Property of a phenomenon, body, or substance, where the property has no magnitude. 
 Example 2: Colour of a paint sample. 
Example 3: Colour of a spot test in chemistry. 
Example 5: Sequence of amino acids in a polypeptide 
Note 1: A nominal property has a value, which can be expressed in words, by alphanumerical codes, or by other means. 
Note 2: ‘Nominal property value’ is not to be confused with nominal quantity value
Note 3: A nominal property has no unit. 
Source: [VIM 1.30] with Examples 1 and 4 omitted, and Note 3 added. 

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