Soluție tampon GroLine pH 4,01cu certificat de analiză, sticlă de 230 ml
![Soluție tampon GroLine pH 4,01cu certificat de analiză, sticlă de 230 ml [1]](https://gomagcdn.ro/domains2/hannainst.ro/files/product/original/groline-ph-4-01-buffer-solution-0-02-ph-accuracy-25-c-with-certificate-of-analysis-230-ml-bottle-132336.jpg "Soluție tampon GroLine pH 4,01cu certificat de analiză, sticlă de 230 ml [1]")
HI7004-023 is a high quality pH 4.01 calibration buffer that is NIST traceable and supplied with a Certificate of Analysis. Hanna calibration buffers have the lot number and expiration date clearly marked on the label and are air tight with a tamper-proof seal to ensure the quality of the solution. Hanna"s line of technical calibration buffers have been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened bottle.
- Supplied with Certificate of Analysis
- Accuracy of ± 0.02 pH @ 25°C
- Temperature chart of the actual pH value at various temperatures printed on each bottle
- Descriere
- Review-uri (0)
HI7004-023 is a high quality pH 4.01 calibration buffer produced in accordance with ISO 3696/BS3978 standards using high purity salts, deionized water, certified weight-checked balances, and Class A glassware in a temperature controlled environment monitored with certified thermometers. Reported values are accurate to ± 0.02 pH @ 25°C and are traceable to NIST Standard Reference Materials (SRMs). Solution does not contain any dyes that may stain the reference cell of a pH electrode.
The HI7004-023 Certificate of Analysis includes:
- Product code
- Lot number
- Mean lot value
- SRMs that were used
- Manufacturing date
- Expiration date
