BIPM - chemistry

Ongoing key comparison:

BIPM.QM-K1 – Ozone ambient level

CCQM Pilot Studies:

CCQM-P110 – Nitrogen dioxide 10 µmol/mol by spectroscopic methods
CCQM-P28 – Ozone ambient level
CCQM-P73 – Preparative capabilities for nitrogen monoxide standards
CCQM-P20.e – Purity analysis series – Theophylline
CCQM-P20.f – Purity analysis series – Digoxin

CCQM Key Comparisons:

CCQM-K55.a – Purity analysis series: 17β-Estradiol
CCQM-K55.b – Purity analysis series: Aldrin
CCQM-K55.c – Purity analysis series: L-Valine
CCQM-K55.d – Purity analysis series: Chloramphenicol
CCQM-K74 – Nitrogen dioxide 10 µmol/mol
CCQM-K82 – Methane in air
CCQM-K90 – Formaldehyde in nitrogen

BIPM measurement values for comparisons.

The reference value for BIPM piloted comparisons is derived either completely or partly from BIPM measurement results.