6 Iso 16283
6 Iso 16283
6 Iso 16283
August 2007
The study proved two things beyond
doubt.
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1.25 k
1.6 k
2.0 k
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3.15 k
Series3
Series2
Series1
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63 Hz
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Moving mic hand held
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So much for waving a microphone about in the source room
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Series3
Series2
Series1
Summary test results compared
(we had to calculate the SNQ to 2 dp to see the differences)
BS EN ISO 16283:2014 Parts 1&2 usefully permit the tester to remain in the test
room and describe several manual scanning techniques, which the withdrawn
ISO 140 Parts 4 and 7 do not.
BS EN ISO 16283:2014 Parts 1&2 also describe impulsive sound sources for
reverberation time measurement, using reverse integration methods, according
to BS EN ISO 3382-2:2008, which the withdrawn ISO 140 Parts 4 and 7 do not.
BS EN ISO 16283:2014 Parts 1&2 gives guidance on damped rooms and oddly
shaped rooms.
It is therefore permitted for ANC Scheme members to adopt BS EN ISO
16283:2014 Part 1 and Part 2 as guidance, where appropriate, subject to the
following conditions:
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Nor 250 (hemi) B&K 4296 (dodec) Nor 276 (dodec) JBL EON15
Pros of ISO 16283-2
Clarification of background correction and
averaging procedures, depending on number
of tapper positions.
Background correction is applied to each
tapper measurement before averaging!
The LnT values are energy averaged, not the
receiver room levels.
Option of rubber ball should it be required.
Cons of ISO 16283-2
Standard poorly written confusing
Can be complicated, when applying background
correction and averaging (too many options).
Background correction applied to individual
tapper positions or pairs of positions, e.g.
4 x 2 = 8 measurements (average of 4 LnT
calculations)
8 x 1 = 8 measurements (average of 8 LnT
calculations)
SITRI Scheme (Ireland)
Officially launched on 27th January 2016
TGD E references ISO 16283 Parts 1 and 2.
100 Hz to 3150 Hz
Supported by DECLG.
Scheme operated and owned by ANC.
Currently audited by ANC examiners.
Different to ANC Scheme in that testers do not have to
be acoustic consultants and are not members of the
ANC.
But they have to interpret a complicated test regime
resulting in a lot more testing than for PCT (new build
and conversion treated differently).
Competent person scheme in accordance with ISO 17024.
Two routes to entry; Training or Experience
Training is the IOAs CCIBAM
Extensive supporting information required, insurances, QA
procedures etc.
Experience of ISO 16283 to date has flagged up several
anomalies with the new standard (Part 1).
Practice notes issued and on the SITRI website.
Too early to comment on Part 2.
Practice Notes