Mindray BS-130 User Manual

10 Calculation Methods
10-12
Polynomial5P
))
100
()
100
()
100
(exp(
3
0
2
00
RR
d
RR
c
RR
baC
−
+
−
+
−
+=
Where,
0
R ,
a
, b ,
c
, d - calibration parameters
Parabola
The positive real root of the following linear quadratic equation is obtained:
0
2
=−++ RcbCaC
Spline
Spline defines several calculation sections based on the responses of calibration
concentrations. Each section differs in specific parameters. Therefore, the section to
which the current response belongs should be confirmed before Spline calculation. The
parameters of relevant section shall be used to obtain a positive real root with the
dichotomy method.
10.2.5 QC Rule
10.2.5.1 Westgard Multi-rule
Westgard multi-rule is shown below.
Symbol Explanation QC Conclusion
1
2S
One control value exceeds ±2 standard
deviations.
Warning
1
3S
One control value exceeds ±3 standard
deviations.
Out-of-control
(random error,
systematic error)
2
2S
Two consecutive control values for one
level exceed ±2 standard deviations.
Out-of-control
(systematic error)
R
4S
The difference between two
consecutive control values exceeds 4
standard deviations.
Out-of-control
(random error)
4
1S
Four consecutive control values for one
level exceed ±1 standard deviation.
Out-of-control
(systematic error)
10
X
Ten consecutive control values for one
level lie on one side of the mean.
Out-of-control
(systematic error)
Westgard multi-rule QC conclusion flow for single control is shown in Figure 10-10.

Mindray BS-130 Specifications

General

Brand	Mindray
Model	BS-130
Category	Measuring Instruments
Language	English