ANOVA	analysis of variance
AUC	analytical ultracentrifugation
CCD	charge-coupled device
CLS	centrifugal liquid sedimentation
CRM	certified reference material
ISO	International Organization for Standardization
k	coverage factor
LF	light factor
LLODd	lower limit of detection, in terms of Stokes diameter
LLOQd	lower limit of quantification, in terms of Stokes diameter
MSB	mean squares between groups
MSW	mean squares within groups
n r	number of replicates within groups
PVC	polyvinyl chloride
RD	relative difference
RM	reference material
R s	resolution factor
RSD r	relative standard deviation for repeatability
RSD ip	relative standard deviation for intermediate precision
RSD ip *	relative standard deviation for intermediate precision (if MSB < MSW)
TC	Technical Committee
ULOQ	upper limit of quantification
u CRM	uncertainty of certified value
u prec	precision uncertainty
u t	trueness uncertainty
W 1/2,1	width of peak 1 at half-height
W 1/2,2	width of peak 2 at half-height
X c1	local maximum of peak 1
X c2	local maximum of peak 2
y m	arithmetic average calculated from replicate results
Δbias	experimental bias