Wednesday 30 August 2023

Plastic Part Marking Codes: What are the Differences Between ISO 11469 and ISO 1043?

Hello and welcome to this blog post in which we discuss the differences between ISO 11469 and ISO 1043 in part marking. 

In previous posts we discussed the different standards and a guide on this topic can be downloaded here. 

Example PPA with 35 wt% glass fiber reinforcement

Let us explain the difference between ISO 11469 and ISO 1043 by an example. 

ISO 1043 is more used as the resin ID and ISO 11469 as part marking code. In our case the PPA is based on a 6T/6I with 35 wt% glass fiber reinforcement resulting in the following part marking code according ISO 11469: 


In the ISO 1043 standard, this material can be found under PA6T/6I-GF35. It is possible to use the resin ID from ISO 1043 and add the less-than sign and the greater-than sign to turn this information into a usable part marking code. Table 1 summarizes the differences.

Table 1: Plastic part marking example of PPA-GF35 and ISO 1043 vs ISO 11469

Thanks for reading and #findoutaboutplastics



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