Steve,
i agree with what you said.  however, there is a way to get around if  
you are willing to spend  some time - develop equipments correlation  
chart: your vendor's data vs your own = as long as it is linear (x-  
your data vs y- of your vendor's data), you are OK.  however, both  
side need to agree upon the correlation with 5% error for example  
(you need to establish using same batch of material = say 3 batches  
to establish the chart and stability of the production).  all of part  
of the development process - it will save you a lot of time in the  
MFG days.  good old time, the MFG got small viscometer on site,  
testing just prior to production, nothing ever goes wrong (the vendor  
knew you were testing the stuff, never outside the 5% allowable  
window).  it save engineering time and support cost with low risk.   
big cost saving and risk avoidance.
my 1.78 cents...
         jk
On Oct 9, 2014, at 1:34 PM, Steven Creswick wrote:

> Ioan,
>
> I've done incoming testing of adhesives for many years.
>
> As others have said, the vendor data sheets will tell you what  
> speed and spindle they are using to do their acceptance testing.
>
> Unfortunately, just because vendor A uses one combination of speed  
> and spindle, doesn't mean that all will.  You will need a variety  
> of spindles, maybe some cone/plate, etc.  each Brookfield will have  
> a speed range.  For some materials you will want a constant  
> temperature bath
>
> FWIW - I don't ever recall taking issue with viscosity unless there  
> was an obvious shipping problem - like all the dry ice melted on a  
> hot Summer trip across the country, etc.  If you are measuring  
> viscosity for internal Manufacturing purposes, then of course you  
> should get a unit.
>
> If you are dealing with reputable adhesives vendors, it is my  
> opinion that you are not adding much value by measuring viscosity  
> and many other parameters.
>
>
> Steve C
>
> -----Original Message-----
> From: TechNet [mailto:[log in to unmask]] On Behalf Of Amol Kane
> Sent: Thursday, October 09, 2014 11:10 AM
> To: [log in to unmask]
> Subject: Re: [TN] Viscometer
>
> Schlumberger-Private
> ________________________________________
> Also find out specifically how they test their product (what speed  
> and spindles they use) so that you can buy a unit that can handle  
> the requirements.
>
> Regards,
> Amol
>
>
> -----Original Message-----
> From: TechNet [mailto:[log in to unmask]] On Behalf Of Drew meyer
> Sent: Thursday, October 09, 2014 8:28 AM
> To: [log in to unmask]
> Subject: Re: [TN] Viscometer
>
> Ioan,
>
> You may want to check with vendors of the epoxies to see what type  
> of viscometer the use.  I know for solder paste the spiral  
> viscometer is recommended.  We use a Malcom and have been happy  
> with it.
>
> Drew
>
> -----Original Message-----
> From: TechNet [mailto:[log in to unmask]] On Behalf Of Steve Gregory
> Sent: Thursday, October 09, 2014 8:21 AM
> To: [log in to unmask]
> Subject: Re: [TN] Viscometer
>
> Hi Ioan,
>
> The old standard, Brookfield...
>
> Steve
>
> On Thu, Oct 9, 2014 at 6:08 AM, Ioan TEMPEA  
> <[log in to unmask]>
> wrote:
>
>> Dear Technos,
>>
>> I need to buy a viscometer, what are your suggestions?
>>
>> The main usage will be testing conductive epoxies, but might be used
>> for other materials too.
>>
>> Thanks,
>>
>> Ioan Tempea, P. Eng.
>> Manufacturing Engineer, Satellite Systems
>>
>> [cid:[log in to unmask]]
>>
>> MacDonald, Dettwiler and Associates Corporation, 21025 Trans-Canada
>> Highway, Ste-Anne-de-Bellevue, QC, Canada H9X 3R2
>> Tel: +1-514-457-2150 x3556
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