Hach

For critical applications and metrology needs, Hach offers Certified Secondary pH Standard Reference Buffer Solutions and Certified Conductivity Solutions. These Certified Reference Material (CRM) in accordance with DIN EN ISO 17034:2017 report the exact pH buffer value or conductivity with related expanded uncertainty (k=2). These pH buffer CRM are available in a wide range of values and offer a unique extended shelf-life period thanks to a premium airtight aluminium packaging.

Certified Reference Materials are for those who demand traceability and the highest accuracy!

Benefits of Certified Reference Materials:

- Compliant with DIN EN ISO 17034:2017

- Peace of mind thanks to highest accuracy

- Guaranteed shelf-life thanks to airtight aluminium packaging

- With Certificate of Analysis¹⁾ from our registered calibration laboratory

Shop Certified Reference Materials now!

• pH 1.679, CRM Buffer Standard Solution, 500 mL, #S11M001

• pH 4.005, CRM Buffer Standard Solution, 500 mL, #S11M002

• pH 6.865, CRM Buffer Standard Solution, 500 mL, #S11M003

• pH 7.000, CRM Buffer Standard Solution, 500 mL, #S11M004

• pH 7.413, CRM Buffer Standard Solution, 500 mL, #S11M005

• pH 9.180, CRM Buffer Standard Solution, 500 mL, #S11M006-US

• pH 10.102, CRM Buffer Standard Solution, 500 mL, #S11M007

• pH 12.45, CRM Buffer Standard Solution, 500 mL, #S11M008

• 111.3 mS/cm, CRM OIML Conductivity Standard Solution, KCl 0.1D 500mL, #S51M001

• 12.85 mS/cm, CRM OIML Conductivity Standard Solution, KCl 0.1D 500mL, #S51M002

• 1408 μS /cm, CRM OIML Conductivity Standard Solution, KCl 0.1D 500mL, #S51M003

• 1015 μS /cm, CRM OIML Conductivity Standard Solution, 0.05% NaCl 500mL, #S51M004

• 25 μS /cm, CRM OIML Conductivity Standard Solution, NaCl 250mL, #S51M013

Download Buffers & Standards Brochure

1) Certificate of Analysis from our registered calibration laboratory for Certified Reference Material (CRM) are available at https://au.hach.com/IUPAC