Electronics Forum | Tue Mar 30 13:40:30 EST 1999 | dennis warner
We've been using a newly installed DI re-circulating system. It's been a big headache. Mostly understanding what causes our resistivity to be unpredictable. I think I've got a handle on that part now. The system consists of a Carbon,HMR(chealet),Cati
Electronics Forum | Fri Aug 24 18:02:51 EDT 2007 | erokc
I'm needing to use DI water for the first time. I called the local Culligan man and was told that distilled water was the same as DI so I bought some. I wanted to determine if it was DI so after reading the postings in the forum I determined the re
Electronics Forum | Tue May 22 11:38:04 EDT 2012 | naynayno
I am looking for IPC or other published standards that specify cleanliness levels for: 1) solder paste stencils 2) selective solder pallets When we cleaned PCB's we used a limit of 4 M-ohms. Now that we have transitioned to No-Clean, I am wonderi
Electronics Forum | Tue May 22 14:30:54 EDT 2012 | davef
There is no standard, nor should there be. You need to establish a standard that meets your customer requirements. The problem with those old-timey standard is that there's just so many choices. What works for you just might be too strict [or loose]
Electronics Forum | Tue Aug 28 11:54:25 EDT 2007 | rgduval
Dave, To tell you the truth, I couldn't tell you. I came into this company with the system installed. When the resistivity is depleted, I call Culligan. It may only be an in-line cartridge filter that they change. We've noted a change in water q
Electronics Forum | Mon Aug 27 11:20:58 EDT 2007 | davef
Q1: Is it sufficent to simply put meter probes in the water to get a resistance reading? A1: No. You need a meter for the purpose. Myron-L [myronl.com] is one such company Q2: I'm very skeptical of the Culligan man as they tried to pass distilled w
Electronics Forum | Sat Aug 25 12:22:30 EDT 2007 | erokc
Is it sufficent to simply put meter probes in the water to get a resistance reading? I'm very skeptical of the Culligan man as they tried to pass distilled water for DI water. As I watched my container being filled I asked how they determined when
Electronics Forum | Sat Aug 25 00:26:22 EDT 2007 | aqueous
Dave, First of all, distilled water is not DI water. It is not the same thing. If you require DI water, you should know what quality is expected for your application. For example, for defluxing applications, generally DI water quality exceeding
Electronics Forum | Mon Aug 27 12:34:54 EDT 2007 | rgduval
Dave, I'd be skeptical too, with that response! I've got a Culligan DI system installed here, and it's got it's own resistivity test meter. When the light goes red, it's time to call and get my resin changed. It's worked out pretty well here. Ba
Electronics Forum | Tue Mar 30 19:58:25 EST 1999 | Scott McKee
| We've been using a newly installed DI re-circulating system. | It's been a big headache. Mostly understanding what causes our resistivity to be unpredictable. I think I've got a handle on that part now. The system consists of a Carbon,HMR(chealet),
