# 13 dppm results

## Electronics Forum: dppm (Page 1 of 2)

### Wave Soldering DPPM

Electronics Forum | Mon Jun 14 07:41:47 EDT 1999 | Vinesh gandhi

Dear All, We are having a big debate over what is the industry standard in DPPM on the wave sodlering process. is a DPPM of about 800 satisfactory. As per our big bosses it should not be more than 50 DPPM. Is the figure realistic. We are typicall

### How to calcula DPPM.

Electronics Forum | Tue May 23 05:43:29 EDT 2000 | Chua

Hi, Currently I had transfer to process which taking care of AI, SMT and MI. I would like to know how to calcula DPPM for SMT. Apprecaite your help. Thanks.

### Re: How to calcula DPPM.

Electronics Forum | Tue May 23 07:24:14 EDT 2000 | JAX

Chua, Look at the previous threads. I believe this was asked within the past few days!!!

### Re: How to calcula DPPM.

Electronics Forum | Tue May 23 22:47:10 EDT 2000 | Dreamsniper

BASIC: No. of defective joints PPM = ----------------------------- x 1000000 Total No. of Joints inspected hope this will help...

### Re: How to calcula DPPM.

Electronics Forum | Tue May 23 22:48:29 EDT 2000 | Dreamsniper

BASIC: PPM = No. of defective joints ----------------------------- x 1000000 Total No. of Joints inspected hope this will help...

### Re: Wave Soldering DPPM

Electronics Forum | Mon Jun 14 09:16:54 EDT 1999 | C.K.

| Dear All, | | We are having a big debate over what is the industry standard in DPPM on the wave sodlering process. is a DPPM of about 800 satisfactory. As per our big bosses it should not be more than 50 DPPM. Is the figure realistic. We are ty

### Re: How to calcula DPPM.

Electronics Forum | Sat May 27 09:51:09 EDT 2000 | Bob Willis

If you want a procedure and a spread sheet graph for calculating defect data its free to download on my web site www.bobwillis.co.uk

### Re: Wave Soldering DPPM

Electronics Forum | Mon Jun 14 13:51:11 EDT 1999 | Chrys Shea

| | Dear All, | | | | We are having a big debate over what is the industry standard in DPPM on the wave sodlering process. is a DPPM of about 800 satisfactory. As per our big bosses it should not be more than 50 DPPM. Is the figure realistic. We

### Re: Wave Soldering DPPM

Electronics Forum | Tue Jun 15 04:55:00 EDT 1999 | Brian Ellis

The other answers on this thread are realistic but it also depends: a) on the quality and finish of the components and PCB (including, of course, solderability) b) the flux type (I would expect lower defect rates with water-soluble than with the less

### Re: Wave Soldering DPPM

Electronics Forum | Thu Jun 17 10:20:15 EDT 1999 | Brian Wycoff

| | | Dear All, | | | | | | We are having a big debate over what is the industry standard in DPPM on the wave sodlering process. is a DPPM of about 800 satisfactory. As per our big bosses it should not be more than 50 DPPM. Is the figure realistic

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