Certified Buffer Standard Solution, pH 4,005

Description

Certified Buffer Standard Solution, pH  4.005 (S11M002) from Hach.

Fully Traceable standards

IUPAC Series certified pH buffer standards are fully traceable to the Standard Hydrogen Electrode (SHE) through Certified Reference Material. All standards are formulated in compliance with NIST, IUPAC and DIN19266 specifications.

Totally reliable packaging

Each standard is delivered in an airtight package ensuring safe storage. 

GLP Right from the start and every day

The date of opening can be marked, as well as the number of uses directly on the bottle in line with Good Laboratory Practice. The observed typical shelf life after opening is printed on the bottle, ensuring timely use.

Proven Traceability

Each standard has its own Certificate of Conformity and Traceability. The use of standards pH Buffers gives you complete confidence in the traceability chain and calculated uncertainties.

Shelf life: 24 months.