pH Meter Calibration Buffer Solution - 4, 7 or 10 - 4oz

Item Description: pH Meter Calibration Buffer Solution - 4oz/125ml

Product Specs:

* 125 ml Bottles (4oz)
* Temperature Charts are included on each bottle of solution.
* Expiration dates on every bottle; 20 months from date of purchase
* pH 7.00 is the most commonly used Buffer Solution.

---

Use this product to keep your pH Meters running at optimum levels!

You choose which Buffer Solution you need! 4.00 pH. 7.00 pH. 10.00 pH.

This listing is for only ONE BOTTLE ($4.99/Bottle), but you can buy as many as you need!  If you need 2 bottles, purchase 2 here!

---

To ensure optimum accuracy time after time, calibrate your instruments using pH Buffer Solutions. Ideal for 1-Point, 2-Point or 3-Point Calibrations! Don't buy Kool-aid type pouches that rely on you having access to deionized water and lab equipment to mix the solution. Buy smart, buy a premixed product to save you time and peace of mind!

---

SUGGESTED PROCEDURES:
Proper electrode storage maximizes electrode performance and extends electrode life. The electrodes should not be stored in distilled water. The filling solution will be diluted and the electrode response will be slow. If using a refillable pH electrode, the fill hole should be covered overnight and during storage. The fill hole cover must be removed during calibration and measurement to ensure a uniform flow of electrode filling solution. The best way to store the electrode is to read the included manual.  We also catrry an Electrode Storage Solution at our eBay Store!

Maintenance and cleaning: The electrode should be inspected weekly for scratches, cracks, or salt crystalization. Follow instructions and do not clean excessively.

Calibration: To verify electrode slope and proper function, calibration must be performed each day before any samples are measured and recalibrated every couple of hours to ensure that correct slope is used to calculate the sample pH. If the user is unsure of the sample range, a pH test strip can quickly determine the approximate sample pH. TIP: Regularly, the electrode should be calibrated with 2 or 3 buffers or standards that bracket the expected sample range.

Rinsing between measurements: Rinsing prevents contamination by carryover on the electrodes. Tip: The electrode should be rinsed with deionized water or an aliquot of the next buffer or sample. Caution: the pH electrode glass bulb should not be wiped.

Temperature: To account for pH slope, buffer and sample changes, a separate or integrated automatic temperature comp. probe or digital LogR should be used. pH is readily temperature correctable.

---

Shipping:

Domestic: All items are shipped out USPS Priority Mail or UPS Ground depending on where you live (shortest shipping time is what we look for).

International: 1-5 Bottles are $15.00 USD ($12 to Canada) and shipped via US Postal's Global Priority Mail which takes about 4-7 business days.  This service only offers Confirmation Numbers and nothing else.  If it's lost, it's lost.

You can opt to upgrade your order by an additional $15.00 and receive shipping through USPS's Express Mail which takes 3-5 business days.  This service also includes Delivery Confirmation, Shipping Insurance to $100.00 and a Tracking Number!

3 or more bottles will require a quote from us to you, so please e-mail if you are interested!

We Carry 20ml Pouches, 500ml Bottles and 4 Liter Jugs too! 

Check our eBay Store (www.nisupply.com) for those items and more!

---

National Industrial Supply
2767 Maricopa Street
Torrance,CA 90503, USA
310.748.6858
310.833.7306 Fax
E-mail: chardowner@yahoo.com

We accept Paypal too!

---