Did you read the article?! Let me quote it for you because it doesn't look like you did:
"Spokesman for the Atomic Energy Organization of Iran, Behrouz Kamalvandi, noted the successful testing of the advanced generation of IR-8 centrifuges by injecting uranium hexafluoride (UF6) into them
The injection of UF6 is a highly important step and it was carried out according to schedule
“the mechanical tests were conducted on the IR-8 centrifuges some three and a half years ago and they were now ready for the next phase, which was the UF6 injection" "
This article was written in January 2017, when he says the mechanical tests happened 3.5 years earlier and that they had now been injected with gas as part of their next stage of testing, exactly as I said earlier.
I did check both of the articles and they don't say what you have falsely quoted. Otherwise, correct me if I'm wrong.
What it says is that "A statement issued by the AEOI on 28 January said the injection of UF6 into the centrifuges marked an important step in the country's uranium enrichment research and development. It described the IR-8 as 'one of the most advanced centrifuges designed and built by Iranian scientists'."
That by no means implies that IR-8 was tested by injecting UF6 into it. Do not distort the article.
Fordow is built much further underground and is near Qom and was not disclosed by Iran, so those are the 3 reasons Fordow is seen as different to Natanz.
Fordow was not disclosed by Iran because it had not been finished yet and Iran was under no obligation by the NPT to disclose the existence of Fordow before the building had been constructed completely. Moving an insignificant number of your centrifuges from one enrichment facility to another does not count as a bold move in my dictionary and if Iran comes under attack (which is highly unlikely), it doesn't matter whether they hit Natanz or Fordow because both scenarios result in war. And both sites are immune to conventional bunker busters but not very immune to tactical nukes.
If you look at the major change in new centrifuges it is their height. The most advanced Urenco centrifuges are 20m+ tall. I read somewhere in Persian about the S series being built specifically for the ease of manufacture/operation reason, if I find it I will post it.
Yeah. I noticed their height and I mentioned it in my comment. But I'm not convinced that it makes it easier to manufacture them or host them in large numbers.
Iran disavowed the 300kg stockpile limit after the 3rd response chapter and now has more than 300kg already I think, so that is wrong.
JCPOA entails limitations, one of those is not to produce 20% enriched uranium and to purchase the needed fuel from abroad instead. That would expire in due course but Iran didn't waive this requirement yet so I guess it's not a problem. If Russia refuses to sell Iran the needed fuel then obviously they would decide to enrich to 20% again, the fact they didn't shows that they don't think it's necessary yet (to me, to you maybe it is gross negligence and treason, maybe you are right but I don't see evidence for that yet).
Apples and oranges. Did you even read what I wrote? The 300 kilogram limit was in reference to Salehi's absurd claim that Iran had enough HALEU reserves. We don't have even 1 gram of HALEU reserves anymore. All we had was either converted to nuclear fuel for the TRR or was sold and sent abroad.
More precisely from Wikipedia: ...This is a "major decline" in Iran's previous nuclear activity; prior to watering down its stockpile pursuant to the Joint Plan of Action interim agreement, Iran had enriched uranium to near 20% (medium-enriched uranium).
[68][69][70] These enriched uranium in excess of 300 kg of up to 3.67% will be
down blended to
natural uranium level or
be sold in return for natural uranium, and the uranium enriched to between 5% and 20% will be
fabricated into fuel plates for the Tehran Research Reactor or
sold or diluted to an enrichment level of 3.67%. The implementation of the commercial contracts will be facilitated by P5+1.
It's simple math. And when you do it, you realize that Iran's nuclear program is no longer a real program and it has been halted after signing the JCPOA and the Rouhani administration is very keen on maintaining status quo.
