I would like to download the standard "Security Essentials for AIX 5.x and 6."
Is this around in a pdf ?
Your best option is to Generate a report from the template "Standard Details" and then select the standard you have a question about. This will generate a report that has the Check name and Details tab listed. There is not a built-in report that will give you the details of the expressions for the check, but this should get you a list and hopefully it will be enough.