syringe size issue

[Str8V8ping]

I found a weird issue when looking at two different branded 5ml syringes . The BD body is longer (same diameter and body but longer and with their own print and measuments on them . The measurements dont match though . The BD ones 5ml mark is about a half ml higher than the KYD one . Has anyone else noticed this . Im gonna have to try testing by putting 5m DW in a graduated cylinder .

Heres what i mean .It may be just something stupid im overlooking .

 

[bamsbbq]

maybe simple..the end of the syringe may hold more/less liquid

 

[Str8V8ping]

I thought of that also but by measuring as best i can with a digital caliper its exactly the same at the tip and bevel . Only thing i can think of is the plunger rubber is a bit thicker but if thats the reasoning then it would be off measurement because when filling the syringe the liquid doesnt touch the plunger . Your supposed to draw a little air before liquid to get a accurate measurement . .5ml is a lot to be off expecially with somthing like flavoring or nic . Until i diagnose it im gonna trust the BD as its a bigger name brand .

 

[1SicPuppy]

Did you fill one up to the 5ml mark with water then do a transfer to check ?

 

[wizard10000]

I'm pretty sure I can see the difference just looking at the pic. If you look at the plunger diameter I think you'll find that the BD plunger is smaller, so the syringe body would have to be longer.

 

[Str8V8ping]

Ok guys heres the verdict . I filled the syringe up to 5ml and plunged it into a 10ml graduated cylinder . The BD syringe is a perfect 5ml not a drop off . The KYD syringe like i suspected only came to 4.5ml exactly . So the KYD syringe is measuring .5ml short . I repeated the test twice and was dead accurate . Be careful with you chineese syringes made by KYD.They are obviously off .There is no percentage variance printed on them either so i guess its a manufacturing error . I got two KYD syringes and both are .5ml low .

Im not sure where i got the kyd syringes but i have only bought syringes from ecig vendors so its one of the vendors .Bad thing is i have been using that kyd one specifically for my nic in my diy juice and now i know all my juices have to be less mg then i intended .

If i use 2ml of nic in my juice i was really putting in 1.8ml of nic with the difference .If i put 5ml of nic it would be 4.5ml which is a big difference if your using 100mg nic . I wonder if KYD's other size syringes are off as well

Edit: I also have a bunch of monojet syringes that are .5ml low . All my BD syringes in all sizes are 100% accurate . I think i will stick with BD for now on so i dont have to calculate the difference . Yes ,i went checking all my syringes lol .

 

[wizard10000]

Oh, well - there goes my theory

 

[sidetrack]

Outstanding find....Thanks for posting. I have always used the BD syringes so I would have never noticed this. Luckily you had both on hand and spotted it! Thank heaven the difference in the syringes is that you get less than you think and not more than you think when using non-BD syringes.

 

[Str8V8ping]

More than 5ml would be bad . The .1 per ml difference can be a big difference if it were more and not less but even then it wouldnt be a really dangerous level . The writing is nice and dark on the BD syringes too which is good . Worth paying 50 cents more .

 

[res125]

nice info...I've been thinking that mine were off too but never bother to check/test them. Guess I'll be checking my syringes to see if they are accurate.

 

[1SicPuppy]

Thanks for the visual update, Looks like I will be buying BD syringes from now on

 

[Iffy]

Great catch!

 

[pinellaspete]

Okay...Here's a tip.

When you first break out a new syringe, paint the graduations with clear nail polish.

My syringes last for months with the lettering as dark as the day I started using them. I found this out from somebody on the ECF a while ago and it really works well. My first syringe only lasted a few washings before all the lettering was gone.

Pete

 

[Str8V8ping]

Okay...Here's a tip.

When you first break out a new syringe, paint the graduations with clear nail polish.

My syringes last for months with the lettering as dark as the day I started using them. I found this out from somebody on the ECF a while ago and it really works well. My first syringe only lasted a few washings before all the lettering was gone.


Pete

Yes it is a good tip . I did it on my last batch of syringes but not with my new ones yet .