The IPC Wetting Balance task group is undergoing a four part study of 
the precision of weight measurements taken on the wetting balance and 
correlation of the measurements among the test users and equipment 
manufacturers.

The IPC Wetting Balance task group has finished two studies. One looked 
at weight measurement, the second developed standard test samples.
These reports are issued as IPC-TR-466-1 and IPC-TR-466-2, and are available 
from IPC's order department. Price: $15 members; 30 nonmembers.

The next two studies will study surface finish and preparation, and new 
test procedures and acceptance requirements.

J-STD-002 (Solderability Tests for Component Leads, etc.) is undergoing 
an update now that the IPC Wetting Balance task group has completed and 
published their findings. It will probably be a year or more before 
J-STD-002A is published.

Mike Buetow
IPC Technical Staff
2215 Sanders Road
Northbrook, IL 60062
P: 847-509-9700, ext. 335
F: 847-509-9798
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On Mon, 1 Jul 1996 [log in to unmask] wrote:
>    FROM:       DSTEWART EX2       D.Stewart        - Product Development Manager.
>     Wetting Balance method for solderability:
> 
>     In 1994, the IPC had a task group looking at a wetting balance
>     solderability test method, and the IEC were also looking at
>     establishing wetting balance methods for checking the solderability
>     of printed circuit boards.
> 
>     Were these methods established? and if so could someone point me in
>     the direction of the documents specifying the methods?
> 
>     Thankyou,
>     Dougal Stewart
>     Product Development Manager
>     Exacta Circuits
>     Scotland
> 
>