It looks like the white plastic is getting damaged the most, however this isn't the portion of the syringe in contact with the fluid inside. How is this a better test than just filling a syringe and leaving it (make sure no air bubble protects the black plunger)?
Having a preloaded syringe stored upwards with an air bubble between the plunger tip and the fluid should prevent the degradation.
Who wants to do another study with filled syringes?
I already showed degradation and swelling of the rubber. If you see the timeline, all of that happened in less than 24 hours.
Even if you hold it uptight, the oil will have been in contact of the rubber and will stick to it. Feel free to do testing and share your results here.
Chinese oil have more solvents than the 2/20 solution I used and will degrade it even faster.
They make a 1ml and 2ml version, just a different listing on that site. Have to search ‘injekt’.
The Henke-Ject / Airtites come in 1ml Luer Slip.
Amazon.com
Looks to be the same syringe with a different label.
Yup, those are the one's I shared with Mr Large Shoes.
Norm-Ject
Manufactured by Bruan, distributed by Air-Tite, made in Germany.
RX only

.
2-Part syringes are latex free, and contain
no rubber, silicone oil, styrene or DEHP. These syringes are the choice for any situation needing an inert, non-reactive syringe. Manufactured only from laboratory grade
polypropylene and
polyethylene.
I believe the barrel is polypropylene, same as other syringes but the middle piece of polyethylene which is more chemical resistant than the polypropylene barrel itself..
I have the 1/3/10ml and you can also get it at 20/30/60ml.
If anyone has a source for a
box of the 50/60ml that is less than 2$/syringe shipped. Please do share.