The record
A December 1974 CTFA letter referencing 'worldwide company interests' in the talc standard-setting process is documented in the peer-reviewed review of J&J's internal testing record (PMID 33641519) — the first PubMed-indexed citation bearing on the J4-1 preemption history.
Claim scope
That the cosmetic trade association corresponded about the talc testing standard in December 1974, in terms documented by a peer-reviewed source.
What this source does not establish
The letter's full text was not independently retrieved; the review's characterization of 'worldwide company interests' coordination is its author's, and the author's litigation consulting role is disclosed.
Limitations
Attribute to the review article; the underlying letter is cited there but is not reproduced in a publicly accessible primary repository.
Source
Pmid — 33641519