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Models / Code
PH 1.68 / 143F194
PH 4.01 / 143F191
PH 6.86 / 143F192
PH 9.18 / 143F193
pH10.02 / 143F195
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| Product Name | prepared pH standard solution (500mL) | ||||
| oxalate pH standard solution pH1.68 |
phthalate pH standard solution pH4.01 |
neutral phosphate pH standard solution pH6.86 |
borate pH standard solution pH9.18 |
carbonate pH standard solution pH10.02 |
|
| model | 143F194 | 143F191 | 143F192 | 143F193 | 143F195 |
| composition | 0.05mol/L potassium tetraoxalate KH3(C2O4)2・2H2O aqueous solution |
0.05mol/L potassium hydrogen phthalate C6H4(COOK)(COOH)aqueous solution |
0.025mol/L Potassium Phosphate, Monobasic KH2PO4 0.025mol/L Disodium phosphate Na2HPO4 aqueous solution |
0.01mol/L sodium borate(borax) Na2B4O7・10H2O aqueous solution |
0.025mol/L sodium hydrogen carbonate NaHCO3 0.025mol/L sodium carbonate Na2CO3 aqueous solution |