Hi Al,

What I found is that it's a go, no-go solderabilty test. Here's a summary of
the test:

Test Method B678-86(1993) Standard Test Method for Test Method for
Solderability of Metallic-Coated Products

AMERICAN SOCIETY FOR TESTING AND MATERIALS, West Conshohocken, PA. All rights
reserved.

1. Scope

1.1 This test method provides a procedure for evaluating the solderability of
metallic-coated products and test specimens to assure satisfactory
performance in manufacturing processes requiring soldering with soft
(tin-lead) solder and rosin flux. This test method is applicable only for
testing coatings that are normally readily solderable such as: tin, tin-lead
alloy, silver, and gold.

1.2 This test method is qualitative and broadly applicable. It is easy to
perform and requires only simple equipment. There are other solderability
tests not covered by this test method that are more applicable to specific
situations, yield quantitative results, or both. Several are described in the
literature. This is a "go-no-go" test and does not grade solderability as
excellent, good, fair, etc.

1.3 This standard may involve hazardous materials, operations, and equipment.
This standard does not purport to address all of the safety problems
associated with its use. It is the responsibility of whoever uses this
standard to consult and establish appropriate safety and health practices and
determine the applicability of regulatory limitations prior to use.

You can get this standard at:

http://enterprise.astm.org/PAGES/B678.htm

It's only 3-pages long, but they charge $25.00 for it...

-Steve Gregory-


> Hello Technetters,
>
> I don't have an ASTM spec book available, but I have a print that calls out
> ASTM B678, Type 2, Class 2.0, Grade 0.
>
> What is it?
>
>
> Thanks in advance,
>
>
> Al
>