Porosity versus gas pocket API 1104 20th edition

[cjgrass]

When interpreting radiographs to API 1104 20th edition para. 9.3.9 calls out porosity, figures 19 & 20 use the term gas pockets. Should the reader sheet/interpretation sheet indicate porosity or gas pocket for an individual pore, seams trivial to me but we are getting flack from QA for using gas pocket instead of porosity either way if it's outside the limitations it's still a bust.
Thanks for your help.

 

[69Firebird]

9.3.9.2 refers to the porosity as depicted in Fig 19 and 20 shows the terms can be used interchangeably- not sure that's even a word- either way they are splitting hairs and should have larger concerns. JMO