Hodnota pH
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Barva pufru
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pH buffer
Disodium Hydrogen Phosphate, 30 g
SRM2186ll
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Sodium Bicarbonate, 30 g
SRM2191a
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Sodium Carbonate, 30 g
SRM2192a
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Calcium Carbonate pH Standard (used as saturated calcium hydroxide solution), 30g
SRM2193b
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Potassium Hydrogen Phthalate, 60 g
SRM84l
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Boric Acid Acidimetric Standard, 100 g
SRM973
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