pH 4.010 Buffer Solution, Millesimal Research Grade, 500 mL, (Non-Regulated), Hanna Instruments, HI6004

Hanna Instruments® pH 4.010 Buffer Solution, Millesimal Research Grade, 500 mL, HI6004

Features:

• Appearance:  colorless liquid
• CAS No.:  components not at levels that must be reported
• pH 4.010 calibration buffer with a high accuracy of ±0.002 pH
• NIST traceable and supplied with a Certificate of Analysis
• pH value is 4.010 ± 0.002 @ 25°C
• Temperature chart of the actual pH value at various temperatures printed on each bottle
• Buffers with millesimal accuracy (±0.002 pH), HI 60xx, has been prepared to meet the increasing need for assured accuracy in pH measurements, making it possible to achieve a resolution of 0.001
• Buffers have the lot number and expiration date clearly marked on the label
• Air tight with a tamper-proof seal to ensure the quality of the solution
• Specially formulated to have an expiration of 5 years from the date of manufacture for an unopened bottle
• Packaged in light block bottles which prevent any oxidation from UV light that could alter the buffer value
• Premium quality pH buffers produced in accordance with ISO 3696/BS3978 standards using high purity salts, deionized water, certified weight-checked balances, and Class A glassware in temperature controlled environment monitored with certified thermometers
• Certificate of Analysis has the following data:
  • Product code
  • Lot number
  • Mean lot value
  • NIST Standard Reference Materials (SRMs) that were used
  • Manufacture date
  • Expiration date
• Color coded label on the HI 60xx series packaging correspond to a given standard pH value making it easy and safe to identify the buffers to be used without containing any dyes that may stain the reference cell of a pH electrode