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Consider GFS primary standards for use in titrations and standardization solutions. GFS manufactures high purity primary standards that meet NIST traceability. Some can be manufactured in large quantities.
Our popular in-stock primary standards include:
Benzoic Acid
Calcium Carbonate
Ceric Ammonium Nitrate
Potassium Acid Phthalate (KHP)
Sodium Tartrate Dihydrate
Sodium Carbonate
Sodium Oxalate
Sulfamic Acid
TRIS Hydroxymethylaminomethane
Potassium Dichromate
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Looking for larger quantities? Request bulk size quantity information here
Primary Standards - Quick Product Selection Guide
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Chemical
GFS Item #
Size
Link
BENZOIC ACID, PRIMARY STANDARD
1681
100 G
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BENZOIC ACID, PRIMARY STANDARD
1681
25 G
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CERIC AMMONIUM NITRATE, CERTIFIED
15
500 G
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CERIC AMMONIUM NITRATE, CERTIFIED
15
100 G
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CERIC AMMONIUM NITRATE, PRIMARY STANDARD
14
500 G
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CERIC AMMONIUM NITRATE, PRIMARY STANDARD
14
100 G
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COPPER, PRIMARY STANDARD, ACS REAGENT, SHOT
686
500 G
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DIPHENYLGUANIDINE, PRIMARY STANDARD
136
500 G
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DIPHENYLGUANIDINE, PRIMARY STANDARD
136
100 G
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DISODIUM DIHYDROGEN, ETHYLENEDIAMINETETRAACETATE DIHYDRATE, PRIMARY STANDARD
365
500 G
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DISODIUM DIHYDROGEN, ETHYLENEDIAMINETETRAACETATE DIHYDRATE, PRIMARY STANDARD
365
100 G
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IRON, ELECTROLYTIC, PRIMARY STANDARD
226
500 G
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IRON, ELECTROLYTIC, PRIMARY STANDARD
226
100 G
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POTASSIUM ACID PHTHALATE, PRIMARY STANDARD (ACS)
554
500 G
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POTASSIUM ACID PHTHALATE, PRIMARY STANDARD (ACS)
554
100 G
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POTASSIUM DICHROMATE, CERTIFIED
78
500 G
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POTASSIUM DICHROMATE, CERTIFIED
78
100 G
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SODIUM CARBONATE, ANHYDROUS, PRIMARY STANDARD (ACS)
1698
500 G
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SODIUM CARBONATE, ANHYDROUS, PRIMARY STANDARD (ACS)
1698
100 G
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SODIUM OXALATE, CERTIFIED, PRIMARY STANDARD
90
500 G
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SODIUM OXALATE, CERTIFIED, PRIMARY STANDARD
90
100 G
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SULFAMIC ACID, PRIMARY STANDARD
97
500 G
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SULFAMIC ACID, PRIMARY STANDARD
97
100 G
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SULFAMIC ACID, CERTIFIED, PRIMARY STANDARD
98
500 G
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SULFAMIC ACID, CERTIFIED, PRIMARY STANDARD
98
100 G
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TOTAL ORGANIC CARBON STANDARD, 1000 ppm
5231
500 ML
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TOTAL ORGANIC CARBON STANDARD, 1000 ppm
5231
100 ML
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TRISHYDROXYMETHYLAMINOMETHANE, PRIMARY STANDARD
176
500 G
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TRISHYDROXYMETHYLAMINOMETHANE, PRIMARY STANDARD
176
100 G
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