National Sharing Platform for Reference Materials
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pH standard-Potassium hydrogen

Code 含量或浓度   pH(25℃)
Value Certified Uncertainty
GBW13103 4.003 0.005
GBW(E)130070 4.00 0.01
GBW(E)130153 4.01 0.01
GBW(E)130194 4.01 0.01
GBW(E)130248 4.00 0.01
GBW(E)130340 4.003 0.010
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