- Excellent Choice Hanna's Buffer solutions are made from established formulas and are standardized with a pH meter that is calibrated to NBS/NIST primary standard buffer solutions. The 20 mL sachets are ideal for infrequent calibrations while for heavy-duty applications, you can choose from the popular 230 mL, 1 liter or 1 gallon containers. Now the pH 4 buffers carry lot #, expiry date as well as pH/°C chart on every bottle. HI 7004L/C and HI 8004L/C are also supplied with an analysis certificate.
- NIST Traceability The ingredients of Hanna pH 4 buffers are Potassium Hydrogen Phthalate. They are standardized using a pH meter calibrated by primary standard buffer solutions (NIST 186 Ie, NIST 186 IIe and NIST 185g S.R.M.). The pH value is certified traceable to NIST 185g S.R.M.
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Weight:
1.50 Pounds |
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Dimensions:
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Weight Disclaimer: *Weight may vary based on configuration. |
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| SKU | Item | Price | |
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HI7004L |
HI 7004L : pH 4.01 buffer solution @ 25°C, Bottle, 0.46 L |
$14.00 |
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HI8004L/C |
HI 8004L/C : pH 4.01 buffer solution @ 25°C, Bottle, 0.46 L FDA approved bottle with certificate of analysis |
$28.00 |
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HI7004/1L |
HI 7004/1L : pH 4.01 buffer solution @ 25°C, Bottle, 1 L |
$17.00 |
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HI7004/1G |
HI 7004/1G : pH 4.01 buffer solution @ 25°C, Bottle, 1 US Gallon |
$43.00 |
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HI70004P |
HI 70004P : pH 4.01 buffer solution @ 25°C, Sachet (25 x 20 ml) |
$26.00 |
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HI70004C |
HI 70004C : pH 4.01 buffer solution @ 25°C, Sachet (25 x 20 ml) with certificate of analysis |
$30.00 |
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HI7004P/5 |
HI 7004P/5 : pH 4.01 buffer solution @ 25°C, Sachet (500 x 20 ml) |
$424.00 |
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HI77400P |
HI 77400P : pH 4.01 & pH 7.01 buffer solution @ 25°C, Sachet (10 x 20 ml) (10 pcs, 5 pcs each) |
$15.00 |
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HI77400C |
HI 77400C : pH 4.01 & pH 7.01 buffer solution @ 25°C, Sachet (10 x 20 ml) (10 pcs, 5 pcs each) with certificate of analysis |
$16.00 |
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HI7004M |
HI 7004M : pH 4.01 buffer solution @ 25°C, Bottle, 0.23 L |
$12.00 |
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