2-Butanol, 1 ml, certified

All standards of Dr. Ehrenstorfer are produced by the ISO9001. A certificate of Analysis is supplied with all „C“ and „CA“ neat products. Products with symbol „E“ are without a certificate. All solutions are supplied with a gravimetric certificate.

Standards are assigned an expiry date, which is printed on both product label and on the certificate.

Different, independent lots are available for all Reference Materials.

Product Codes

Catalogue number an example: 10330100AC/XA

• 10330100 = Atrazine D5
• AC = Aceton
• X = solution >=100 ng/µl
• A = in ampoules

Description

• C = certified neat
• E = neat (not certified)
• Y = solution >=1000 ng/µl
• X = solution >=100 ng/µl
• L = solution >=10 ng/µl
• Z = solution <=10 ng/µl
• A = in ampoules