Proposed Performance amp Listing Criteria For Professional Radon Measurement Devices Presented by Michael LaFontaine P Phys CNRPP Lead Auditor Technical Evaluations amp QA The 2017 International Radon Symposium ID: 653217
Download Presentation The PPT/PDF document "The 2017 International Radon Symposium" is the property of its rightful owner. Permission is granted to download and print the materials on this web site for personal, non-commercial use only, and to display it on your personal computer provided you do not modify the materials and that you retain all copyright notices contained in the materials. By downloading content from our website, you accept the terms of this agreement.
Slide1
The 2017 International Radon Symposium
™
Proposed Performance & Listing Criteria For Professional Radon Measurement Devices
Presented by: Michael
LaFontaine
, P. Phys.
C-NRPP Lead Auditor, Technical Evaluations & QASlide2
The 2017 International Radon Symposium
™
Abstract
Recent commissioning of the Canadian National Radon Chamber at the Radiation Safety Institute of Canada, marked a major milestone for the Canadian National Radon Proficiency Program.
The Canadian radon chamber will:
facilitate domestic radon measurement performance testing for C-NRPP listed radon professionals
,
serve as the national radon chamber for professional radon measurement device testing to be used by manufacturers worldwide wishing to have their devices listed by C-NRPP for use in Canada.Slide3
The 2017 International Radon Symposium
™
Abstract
(continued)
This paper details:
in-chamber test proposals and performance requirements for alpha track and
electret
ionization chamber devices,
“dynamic” tests and performance requirements for continuous radon monitors and electronic integrating devices,
expected content for professional measurement device Performance & Technical Specifications sheets.Slide4
The 2017 International Radon Symposium
™
Abstract
(continued)
This paper also:
presents an overview of the C-NRPP listing process,
provides requirements for the Manufacturer’s QA Manual,
discusses the documents each manufacturer has to submit to C-NRPP for review and approval.Slide5
The 2017 International Radon Symposium
™
Contents of the Implementation Manual
Front Matter (Introduction, Scope, Definitions, & Refs.)
The Listing Process
The Manufacturer’s QA Manual
SARA Documents
Canadian Radon Chamber Test Protocols
Specifications (Technical & Performance)
AppendicesSlide6
The 2017 International Radon Symposium
™
Select Listing Process Definitions
COV - Coefficient of Variation is defined as the ratio of the standard deviation of Identical Devices under test (SD or σ) at a mean value of radon concentration as measured in the reference radon chamber, divided by the mean value of radon concentration as measured by the individual Identical Devices under test (
μD
).
CRM (Continuous Radon Monitor) – An electronic radon measuring/monitoring device; for C-NRPP listing it must: a) have a measurement or dynamic range of 20 to 7,400
Bq
/m
3
[0.5 to 200
pCi
/L] (minimum), and b) be able to store reviewable and downloadable, date and time-stamped average radon concentration data in non-volatile memory.
Slide7
The 2017 International Radon Symposium
™
Select Listing Process Definitions
DME (Device Mean Error) - Device Mean Error (DME) is based on the 1989 methodology established at the CANMET National Radon/
Thoron
Test Facility, Elliot Lake, Ontario. Device Mean Error is defined as (the mean value of radon concentration, as measured by the Identical Devices under test (MD or
μD
), divided by the mean value of radon concentration as measured in the reference radon chamber (MC or
μC
) – 1).
Dixon Criterion – A statistical method for dealing with outliers based on three or more measurements, and in the case of radon, made in nominally the same physical location, and during conditions of equivalent temporal, seasonal, and environmental conditions.
Slide8
The 2017 International Radon Symposium
™
Select Listing Process Definitions
EID (Electronic Integrating Device) – An electronic radon measuring/monitoring device; for C-NRPP listing it must: a) have a measurement or dynamic range of 20 to 3,700
Bq
/m
3
[0.5 to 100
pCi
/L] (minimum), and b) be able to store reviewable and downloadable, date and time-stamped average radon concentration data in non-volatile memory.
Identical Devices - Devices produced by the same Manufacturer using the same production and quality control procedures, processes, component parts and sub-assemblies.
Slide9
The 2017 International Radon Symposium
™
Select Listing Process Definitions
Percent Non-Linearity - % Non-Linearity (low to high
Rn
concentration) is defined as the percent difference of the mean Individual Mean Errors (IMEs) for Identical Devices under test.
SARA (Submit for Agency Review & Approval) – Those Manufacturer’s documents which have to be submitted to C-NRPP for listing compliance review and approval.
TTU (Type Test Unit) - A device provided by the manufacturer for type testing. The TTU is manufactured at the same facility, using the same personnel, procedures, equipment, and components/materials as the commercial units provided for homeowners at large. Slide10
The 2017 International Radon Symposium
™
Listing Process References
CAN/CSA-ISO 9001 - 2008, Quality Assurance Model for Quality Assurance in Design, Development, Production, Installation and Servicing.
CEI IEC 61000-4-2, Electromagnetic Compatibility - Part 4-2: Testing and Measurement Techniques - Electrostatic Discharge Immunity Test.Slide11
The 2017 International Radon Symposium
™
The C-NRPP Listing Process
The Listing Process is presented graphically in the following figure.
C-NRPP will execute a Non-Disclosure Agreement with the Manufacturer prior to the submission of any Manufacturer documents to C-NRPP.
Manufacturer documentation submitted to C-NRPP in support of a professional radon measuring device listing application shall be maintained in Confidence by C-NRPP as Proprietary Information specific to the providing Manufacturer ONLY. Slide12
The 2017 International Radon Symposium
™
The C-NRPP Listing Process
Slide13
The 2017 International Radon Symposium
™
The Manufacturer’s QA Manual
Should contain:
a
statement
of Management’s Quality Policy and Commitment to the quality assurance program as described therein,
clearly defined areas of authority and responsibility pertaining to review and approval regarding Document and Design Control,
a
list
of Quality Objectives,Slide14
The 2017 International Radon Symposium
™
The Manufacturer’s QA Manual
specifics regarding Document and Design Control
,
requirements
for Manufacturing and QC procedures
,
a
process/outline for any Commercial
Dedication
,
g
uidelines for Design
Specifications; Assembly Drawings & Schematics; Operation Manuals
,
details
for Non-Conformance corrective action and Internal Audits.Slide15
The 2017 International Radon Symposium
™
SARA Documents
General Assembly drawing – usually an exploded or isometric view.
Schematic(s) – graphical presentations of the electronic circuit(s).
Inspection & Test Plan – a report style document.
IMQP Chart – a pictorial presentation of all manufacturing and QC steps from RI to final QC function test.Slide16
The 2017 International Radon Symposium
™
SARA Documents
(continued)
BOMs – comprehensive lists of all parts and components/materials required to build the device (including part specifications).
Type Test Procedure – specific to TTU. Required for: ESD, EMI, &
Rn
Measurement Performance Tests.
Type Test Report – certified results of the Type Tests.
Owner’s Operation Manual – describing location, installation, and operation details.Slide17
The 2017 International Radon Symposium
™
SARA Documents
(continued)
Technical Specifications – comprehensive lists of all parts and components/materials required to build the device (including part specifications).
Performance Specifications – specific to TTU. Required for: ESD, EMI, &
Rn
Measurement Performance Tests.Slide18
The 2017 International Radon Symposium
™
Example Technical
SpecificationSlide19
The 2017 International Radon Symposium
™
Example Technical
Specification
(continued)Slide20
The 2017 International Radon Symposium
™
Example
PerformanceSpecificationSlide21
The 2017 International Radon Symposium
™
Example
PerformanceSpecification
(continued)Slide22
The 2017 International Radon Symposium
™
Type Test Requirements
Electro-magnetic Interference
Electrostatic discharge (CEI IEC 61000-4-2), operator/user interference,
8kV
contact
Cell phone interference, 5 call initiations at 60 second intervals 100 mm
(about 4”) from
face of TTU, and repeated at a distance of 100 mm from the top horizontal surface of the TTU
≤
20% error
≤
20% error
(Electronic Devices Only)
Slide23
The 2017 International Radon Symposium
™
Performance Requirements
AC Power Input (
if applicable, electronic devices only)
:
Voltage
Frequency
115
VAC ± 15VAC
60 Hz ± 3Hz
Ambient Temperature Range
(all measurement device types)
10
–
30°C
(21°C
typ.)
50 – 86°F (70°F typ.)
Relative
Humidity
(all measurement device types)
Up to 75% (
non-condensing
)
Pressure
(all measurement device types)
101.325
kPa
1
atm
or about 30” Hg
Radon Measurement Accuracy
(all measurement device types)
± 20% errorSlide24
The 2017 International Radon Symposium
™
Canadian
Rn
Chamber
Operating & Design Ranges
Control System Element
Operating Range
Design Range
Chamber
Rn
Concentration
148 Bq/m
3
to 500 kBq/m
3
[4 pCi/L to 13,514 pCi/L]
52 Bq/m
3
to 500 kBq/m
3
[1.4 pCi/L to 13,514 pCi/L]
Injection Circuit
Flow Rate
0 to 2
litres
/minute
[0 to 4.2 ft
3
/hour]
0 to 10
litres
/minute
[0 to 21.2 ft
3
/hour]
Exhaust
Circuit Flow Rate
0 to 10
litres
/minute
[0 to 21.2 ft
3
/hour]
0 to 20
litres
/minute
[0 to 42.4 ft
3
/hour]
Rise Times
12 hours to 27 days
6.4 hours to 27 daysSlide25
The 2017 International Radon Symposium
™
Canadian
Rn
Chamber
Environmental Conditions
Environmental Parameter
Typical Test Condition
Temperature
18 to 22 °C [64
to 72 °F]
Relative Humidity
20 to 60%
Atmospheric Pressure
860
kPa
to 1,060
kPa
[8.5 to 10.5
atm
]
Ambient Gamma Dose Rate
340
nSv
/h
(0.034
mrem
/h)Slide26
The 2017 International Radon Symposium
™
Chamber Test Protocols
Low Temperature Static Test (ATDs & EICs):
Three Identical Devices shall be exposed (2 to 30 days exposure period) to high radon concentration (> 600
Bq
/m
3
[> 16
pCi
/L]), ambient temperature (20°C [68°F] typical), ambient humidity (55% typical).
High Temperature Static Test (ATDs & EICs):
Three Identical Devices shall be exposed (2 to 30 days exposure period) to low radon concentration (< 200
Bq
/m
3
[< 5
pCi
/L]), high temperature (30°C [86°F] typical), high humidity (70% or best value, non-condensing).Slide27
The 2017 International Radon Symposium
™
Chamber Test Protocols
(continued)
Acceptance Criteria (Static Tests):
Device Mean Error for radon concentration shall be within ± 0.20 of chamber mean value radon concentration. Coefficient of Variation ≤ 0.15.
Note:
The Dixon Criterion may be used in the event of a suspect reading from one of the devices.
Acceptance Criteria (% Non-Linearity):
Percent Non-Linearity (low to high radon concentration static tests for ATDs & EICs) shall be ≤ 15%.Slide28
The 2017 International Radon Symposium
™
Chamber Test Protocols
(continued)
Dynamic Test - Tracking Accuracy (EIDs):
The TTU shall be exposed (48 hours total exposure period typical) to stable conditions of low radon concentration
(< 200
Bq
/m
3
[< 5
pCi
/L]), high temperature (30°C [86°F]) typical, 70% nominal relative humidity ( non-condensing); then the radon concentration increased to 1,000
Bq
/m
3
. Conditions will be allowed to stabilize and the high radon concentration benchmarked. Slide29
The 2017 International Radon Symposium
™
Chamber Test Protocols
(continued)
Dynamic Test - Tracking Accuracy (EIDs):
Heater(s) and humidifier(s) shall be turned off and r
adon
concentration in the chamber shall be slowly increased to about 3,500
Bq
/m
3
[95
pCi
/L] and once there, allowed to drop down to ambient levels.
The Tracking Accuracy test shall look at EID performance during the transient from 1,000
Bq
/m
3
through to 3,500
Bq
/m
3
and down to ambient.
Slide30
The 2017 International Radon Symposium
™
Chamber Test Protocols
(continued)
Dynamic Test - Tracking Accuracy (CRMs):
The TTU shall
shall be exposed (48 hours total exposure period typical) to stable conditions of low radon concentration (< 200
Bq
/m
3
[< 5
pCi
/L]), high temperature (30°C [86°F]) typical, 70% nominal relative humidity ( non-condensing); then the radon concentration increased to 1,000
Bq
/m
3
. Conditions will be allowed to stabilize and the high radon concentration benchmarked.
Slide31
The 2017 International Radon Symposium
™
Chamber Test Protocols
(continued)
Dynamic Test - Tracking Accuracy (CRMs):
Heater(s) and humidifier(s) shall be turned off and r
adon
concentration in the chamber shall be slowly increased to about 7,000
Bq
/m
3
[190
pCi
/L] and once there, allowed to drop down to ambient levels.
The Tracking Accuracy test shall look at CRM performance during the transient from 1,000
Bq
/m
3
through to 7,000
Bq
/m
3
and down to ambient.
Slide32
The 2017 International Radon Symposium
™
Chamber Test Protocols
(continued)
Acceptance Criteria (Dynamic Tests – EIDs & CRMs):
Device Mean Error for radon concentration shall be within ± 0.20 of chamber mean value radon concentration. Coefficient of Variation shall be ≤ 0.15 for each of low and high radon concentrations. % Non-Linearity (low to high radon concentration) shall be ≤ 15%. Tracking Accuracy for device reading shall be within ± 0.20 of chamber value (chamber value is defined as the mean radon concentration in the chamber during the period coinciding with the radon concentration averaging period of the device).Slide33
The 2017 International Radon Symposium
™
Dynamic Radon Exposure ProfileSlide34
The 2017 International Radon Symposium
™
STATUS
Technical & Performance Specifications for ATDs, CRMs, EICs, and EIDs have been reviewed by C-NRPP’s technical committee. These specifications will be emailed to device manufacturer’s by October 2017 month end.
The draft “C-NRPP Professional Radon Measurement Device Listing Implementation & Review Manual,” will be forwarded this month (October 2017) to C-NRPP’s technical committee for review.Slide35
The 2017 International Radon Symposium
™
Thank you for attending!
Merci de
votre
participation!