Re: [Killietalk] SG of 1 tbsp per 5 gallon of water

[LeeH920226 at aol_com]

In a message dated 5/1/04 9:37:42 AM, Simolo at chem_chem.rochester.edu writes:

<< Since you do not completely drain the water, one easy way to come 
close is to use a conductivity meter.   >>

The range of some conductivity meters may not go as high as the desired range 
for this use. Certainly my Hanna TDS meter (a conductivity meter in disguise) 
only goes to 1000 ppm TDS which is about 3000 microsiemens/cm on a 
conductivity scale. Also mix well before measuring. Here are some very quick numbers I 
just measured:
                    Hanna TDS               Pinpoint Conductivity
Tap water               198                 331
plus 1/4 tsp. salt/gal  526                 1060
plus 1 tsp. salt/gal        >1000                   4260

Meanwhile a specific gravity reading is still 1.000

Lee Harper
Media, PA

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