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Extent



Extent - optional

Definition The extent gives an impression of the nature of the product and its quantity.
General notes ---

MARC 21 ONIX 3.0.8 Reference Names
ONIX 3.0.8 Short Tags
Format 300 $a

<Extent>

/ONIXMessage/​Product/​DescriptiveDetail/​Extent

<ExtentValue>

/ONIXMessage/​Product/​DescriptiveDetail/​Extent/ExtentValue

<ExtentUnit> with value "03" from code list 24

/ONIXMessage/​Product/​DescriptiveDetail/​Extent/ExtentUnit

<extent>

        <b219>

        <b220> with value "03" from code list 24


Format notes
Quantity and type of product is given in field 300 $a. The number of pages is added in round brackets.

---

Example

300 ##$a 1 Online-Ressource

300 ##$a 1 Online-Ressource (245 Seiten)

<Extent>
   <ExtentValue>245</ExtentValue>
   <ExtentUnit>03</ExtentUnit>
</Extent>

<extent>
   <b219>245</b219>
   <b220>03</b220>
</extent>




2023-06-01