| A. |
Conditions
for participation |
| |
|
| A1 |
Is the PTS national or international? |
|
national
regional, namely:
international
|
| A2 |
Approximate number of participants:
|
| A3 |
Is participation open to all laboratories? |
|
yes
no.
|
| A4 |
Is participation mandatory for any laboratory? |
|
yes.
no |
| |
| B. |
PT scheme documentation and quality management
|
| |
|
| B1 |
Is there any quality management system for the
operation of the PTS? |
| |
yes, based on
no, but a QMS is planned to be set up.
no. |
| If yes, does it fulfill the requirements of ISO/IEC
Guide 43? |
It does completely.
It does partially.
It does not / I don't know. |
| B2 |
Do you have a quality manual and/or standard operating
procedures (SOP) or working instructions (WI)? |
|
yes, a complete description of the operation
partially, for the fundamental processes
no |
| B3 |
Do you have any written information describing
the PTS, its aim and its operation? |
|
yes
no |
| B4 |
Do you have an advisory/steering group involved
in the supervision of the PTS? |
|
yes
no |
| B5 |
Do you have any documented procedure for the treatment
of complaints? |
|
yes
no |
| B6 |
Is the confidentiality in the handling of the PTS
results always guaranteed? |
|
yes
no |
| B7 |
Will any third party (e.g. authority or accreditation
body) be informed about the results of any particular laboratory? |
|
yes
no |
| If yes, are the participants informed about it? |
yes
no |
| |
| C. |
Test
items |
| |
|
| C1 |
Which organisation prepares or selects the test
items? |
|
|
| C2 |
How are the assigned values of the testing quantities
determined (you can tick more than one box)? |
|
by the preparation process (e.g. weighing value, ...)
by measurements of one selected laboratory traceable to stated references
by the results of several selected laboratories
from the results of the participants to the PTS
by other means:
|
| C3 |
Is the related uncertainty known for each assigned
value? |
|
yes
no |
| If yes, determined according to which procedure?
Please give a short description or quote the document. |
|
|
| C4 |
How do you manage the distribution of the test
items? |
|
The same test item(s) are consecutively being handedout to the
participants
Different participants simultaneously receive test items,
which are similar as far as possible
Different participants simultaneously receive test items with
different assigned values
Different, namely:
|
| C5 |
How do you guarantee the stability of the test
items? |
|
On the basis of knowledge and experience
On the basis of stability checks before delivery
On the basis of renewed measurement / testing after return of the test
items
By other measures, namely:
|
| C6 |
Do you carry out a homogeneity test before the delivery
of similar test items? |
|
yes
no
not applicable |
| C7 |
How is the distribution of the test items managed? |
|
By dispatch
By collection by the participants |
| C8 |
Does a limited stability of the test items cause
any special requirements on packing, storage and dispatch? |
|
yes, namely:
no |
| C9 |
Are there any spare test items available until the
end of the evaluation of the PTS? |
|
yes
no |
| C10 |
Are there any surplus or additional test items after
PT completion for use as e.g. quality check samples? |
|
yes
no |
| |
| D. |
Analysis
of the testing results and assessment of the laboratories |
| |
|
| D1 |
How is the statistical analysis of the testing results
performed? |
|
Performed according to
.
Performed according to a statistical procedure elaborated by the provider. |
| D2 |
Do you apply statistical methods in order to minimise
the influence of outliers? |
|
yes. The influence of outliers is minimised by :
no |
| D3 |
Do you perform any assessment of the laboratories
on the basis of the respective results?
If not, please go on with chapter E. |
|
yes
no |
| D4 |
How do you perform the assessment of the laboratories? |
|
For each PTS separately
For several rounds of the same/similar PTS |
| D5 |
The assessment of the laboratories is performed
on the basis of the (you can tick more than one box): |
|
dispersion typical for the laboratories (precision)
deviation from the assigned value (trueness)
other criteria, namely:
|
| D6 |
Are the criteria for satisfactory participation
given on the basis (you can tick more than one box): |
|
of values from the experience of the PTS provider
of literature data (standards, guidelines, special publications)
of limits laid down by law
of the uncertainty declared by the participants
of
|
| D7 |
Are statistical criteria or rankings used in the
assessment (see e.g. ISO/IEC Guide 43)? |
|
yes
no |
| If yes, which criteria or rankings are being used
(you can tick more than one box)? |
z-scores
En-numbers
ranking by growing deviation from the assigned value
Q-scores
other characteristical values, namely
|
| If yes, what are the criteria for satisfactory participation?
|
|
|
| |
| E. |
Information exchange
between provider and participants |
| |
|
| E1 |
Do you give instructions for the handling of the
test items and, if applicable, for the performance of the test? |
|
yes
no |
| E2 |
Do you give instructions with regard to the reporting
of the results and their format? |
|
yes
no |
| E3 |
Within which period do the testing laboratories
have to return their results? |
|
|
| E4 |
How long after the results have been received by
the PTS provider is any report or information about the outcome of the
PTS published? |
|
|
| E5 |
Which type of information is provided? |
|
|
| E6 |
Does a discussion forum between the PTS provider
and the participants take place? |
|
yes
no |
| E7 |
Can participants ask the PTS provider for technical
instructions to help improve their performance? |
|
yes
no |
| |
| F. |
Further information about this
PT scheme |
| |
|