You have reached the GLO page mentioned in the appendix to ASTM F2575-23, section X1 (RELATED READING) where we find: Description of Translation Grades and Labels: Tranquality, website: https://www.tranquality.info/glo/
Since the publication of F2575-23, there has been much discussion of labels and grades within the translation community. What are they?
Labels are intended to help translation consumers identify if what they have access to was verified by a professional or not. The Translation Consumer Labels Project (Labels Project, for short) has been working with the ASTM F43 Committee to improve section 10 Post Production Phase of ASTM F2575-23 where labels are introduced (10.2 and annex). As a result of their effort, section 10 is now under revision by WK92487.
Grades of translation have been absorbed into service levels, and a document about service levels will be made available on the Tranquality.info website in due course.
To stay in touch with developments in the Labels Project, bookmark and follow this URL: https://www.tranquality.info/status-of-labels/