ISO/TC 108/SC 3 N 388-CEN/T C 231 N 439

Date: 2003-07 ISO/TC 108/SC 3 N 388-CEN/TC 231 N 439
Report of voting on doc. 108/3 N 367-CEN/TC 231 N 402
Second ISO/CD 8041 "Human response to vibration - Measuring instrumentation"
1 2 (3) 4 5 (6) (7)
Comment (justification for change) by the MB Proposed change by the MB Secretariat observations
on each comment submitted
Type
of
comment2
Paragraph/
Figure/Table/
Note
(e.g. Table 1)
Clause No./
Subclause No./
Annex
(e.g. 3.1)
MB 1
referenced. For undated
references them the latest
version of the standard
applies (as stated in the
sentence before the list of
normative references – this
is a standard ISO phrase).
Otherwise I have no concerns with this document an think
the past comments were treated reasonably.
Accepted
Accepted
Rejected – The standard
does not suggest the use of
vehicle dc sources. The
clause provides a means for
specifying the suitability of
external dc sources. We
have now added a more
explicit requirement for the
manufacturer to specify the
specification limitations for
external power supplies.
US 02 ed Guide to the expression of uncertainty in measurement
(GUM) needs to be added to Normative references.
US 03 ed Several terms and definitions used in section 3 should be
same as ISO 2041, or else there should be a statement in
the body of the text that some terms are exceptions to
that standard
US 05.19 te It is NOT good engineering & instrumentation practice to
connect & use external DC power derived from [vehicle]
sources while measuring vibration from these sources -
this virtually always leads to serious unwanted [ground
loop & /or RFI] sources of electrical/electronics problems
in the measuring & other instruments connected to say a
vehicle's DC power supply-rather use a SEPARATE &
independent power source [i.e. external 12VDC battery] &
avoid all of these problems-this NEEDS to be mentioned
& explained in this document-this is NOT a trivial
recommendation.
Advice on good
measurement practice does
not belong in this
instrumentation standard.
Remove clause 7.7 Rejected – The removal of
this clause has been
suggested before and the
committee have agreed to
retain it.
US 07.7 te IP rating is a product feature and should not be listed as a
desired capability in the standard. One could make the
same argument for making the device intrinsically safe for
use in mines.
1 MB = Member body (enter the ISO 3166 two-letter country code, e.g. CN for China; comments from the ISO/CS editing unit are identified by **)
2 Type of comment: ge = general te = technical ed = editorial
NOTE Columns 1, 2, 4, 5 are compulsory.
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