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  1. dirtdrpa

    ?hydrometer analysis

    thanks, i realized that i accidentally added sod hex to the full 1000ml, instead of distilled water. oops.
  2. dirtdrpa

    ?hydrometer analysis

    mixture for sodium hex is 40g/l. mixed approx 150 grams for a galloon. 1 gallon = 3.76 liters. 3.76 liters x 40 grams = 150 grams. am i wrong? using a 50 gram sample. steps done properly but still getting a reading over 60. never happened to me before. still trying to figure it out.
  3. dirtdrpa

    ?hydrometer analysis

    im using an 152H scale. my distilled water only level is reading at 0, but my sodium hexametaphosphate mix is reading at 40. my mixture is 40 grams per liter as told. if anyone can help, much appreciated. cant seem to find what the mixture should read at. the high 40 reading is leading me to be...
  4. dirtdrpa

    lab accreditation

    never mind, just remembered
  5. dirtdrpa

    lab accreditation

    does anyone know the major soils lab accreditation that most states require? i can't seem to remember.
  6. dirtdrpa

    WTB auto proctor machine and industrial oven

    does anyone have any leads on where i can purchase used automated proctor machines and ovens?
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