Does anyone have a source on HTA explosive?

I’m looking for a source that describes what the German explosive HTA is made off:

You can’t have searched at all!!

There is a note in the Wiki article on the R4M rocket saying it’s warhead was HTA 41, which is given as:

There is also a Mil-Spec for a HTA-3 - more modern I guess: MIL-E-46495 A EXPLOSIVE COMPOSITION HTA-3

Also HTA-3 is in this document at DTIC - Engineering Design Handbook: Explosives Series Properties of Explosives of Military Interest

Yeah, I know but I don’t have the book.