Smoke Sensitivity Testing of Residential Smoke Alarms

8 CSIRO

Smoke Sensitivity Testing of Residential Smoke Alarms

Commercial-in-Confidence

〔图〕插图 Prepared for:

Fire and Rescue NSW - Fire Investigation and Research Unit

Amarina Avenue

Greenacre, NSW, 2190

AUSTRALIA

Agreement: 2016030735

Report: XF3033/R1

Issue date: 27 April 2016

www.csiro.au

Report XF3033/R1 Smoke Sensitivity Testing of Residential Smoke Alarms

Prepared on behalf of CSIRO by

Reviewed by

〔图〕t-\n Commonwealth Scientific and Industrial Research Organisation Infrastructure Technologies Fire Systems and Acoustics

Private Bag 1 Clayton Sout VIC 3169 AUSTRALIA

Ph.: +61 (0)3 9545 2777

Web: http://www.csiro.au

Fax: +61 (0)3 9544 1128

Copyright and Disclaimer

To the extent permitted by law, all rights are reserved and no part of this publication covered by copyright may be reproduced or copied in any form or by any means except with the written permission of CSIRO.

CSIRO reports apply only to the specific samples investigated under the stated criteria and conditions. It is the client's responsibility to assure that production units of the products are of identical manufacture. CSIRO shall have no liability for deductions, inferences or generalisations drawn by the client or others from reports issued by CSIRO. This report shall not be used to claim, constitute or imply product endorsement by CSIRO

Report XF3033/R1 Smoke Sensitivity Testing of Residential Smoke Alarms

Table of contents

1 INTRODUCTION $\ldots$ 4

2 TEST PROGRAM $\ldots$ 4

1. 1 Test Samples $\ldots$ 4

3 TEST RESULTS $\ldots$ 5

1. 1 Directional Dependence Test Results $\ldots$ 5

1. 2 Initial Sensitivity Test Results $\ldots$ 9

4 REFERENCE INFORMATION $\ldots$ 21

1. 1 Obscuration vs. Ionisation data $\ldots$ 21

1. 2 Obscuration units $\ldots$ 21

List of tables

Table 1 Summary of the submitted samples of each of four models of residential smoke alarm. 4

List of figures

Figure 1. Polar chart of directional dependence test results of XF3033/01 (P001). $\ldots$ 5

Figure 2. Polar chart of directional dependence test results of XF3033/61 (M001) $\ldots$ 6

Figure 3. Polar chart of directional dependence test results of XF3033/122 (D002). $\ldots$ 7

Figure 4. Polar chart of directional dependence test results of XF3033/182 (1002) $\ldots$ 8

Figure 5. Typical response values of the reference obscuometer and MIC, as fitted to the CSIRO AS 3786 / AS 7240.2 test tunnel, to aspirated paraffin during tunnel sensitivity tests of smoke alarms and detectors. $\ldots$ 21

Figure 6. Relationship between smoke density as measured in dB/m and %obs/m to 10 %obs/m. $\ldots$ 22

Figure 7. Relationship between smoke density as measured in dB/m and %obs/m to 50 %obs/m. $\ldots$ 22

Report XF3033/R1 Smoke Sensitivity Testing of Residential Smoke Alarms

1 INTRODUCTION

Fire and Rescue NSW submitted samples of four different models of residential smoke alarm for Directional Dependence and Initial Sensitivity testing in accordance with AS 3786-2014.

2 TEST PROGRAM

The following activities were performed to evaluate the sensitivity of each model of residential smoke alarm:

· Directional Dependence (Clause 5.2) test (one test on one sample of each of the four models); and

● Initial sensitivity (alarm response threshold) test (Clause 5.3) on all samples of each model.

The results of these tests are detailed in Section 3 of this report.

2.1 Test Samples

A summary of the submitted samples are detailed in Table 1 of this report.

Table 1 Summary of the submitted samples of each of four models of residential smoke alarm.

Report XF3033/R1 Smoke Sensitivity Testing of Residential Smoke Alarms

3 TEST RESULTS

3.1 Directional Dependence Test Results

XF3033/01 (P001)

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Figure 1. Polar chart of directional dependence test results of XF3033/01 (P001).

Report XF3033/R1 Smoke Sensitivity Testing of Residential Smoke Alarms

XF3033/61 (M001)

〔图〕00.220.21453150.20.190.180.170.16902700.15225135180\n

Figure 2. Polar chart of directional dependence test results of XF3033/61 (M001).

Report XF3033/R1 Smoke Sensitivity Testing of Residential Smoke Alarms

XF3033/122 (D002)

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Figure 3. Polar chart of directional dependence test results of XF3033/122 (D002).

Report XF3033/R1 Smoke Sensitivity Testing of Residential Smoke Alarms

XF3033/182 (I002)

〔图〕00.90.850.8453150.750.70.650.60.55902700.5”25135180\n

Figure 4. Polar chart of directional dependence test results of XF3033/182 (I002).

Report XF3033/R1 Smoke Sensitivity Testing of Residential Smoke Alarms

3.2 Initial Sensitivity Test Results

XF3033/01 (P001) through XF3033/60 (P060)

Report XF3033/R1 Smoke Sensitivity Testing of Residential Smoke Alarms

Report XF3033/R1 Smoke Sensitivity Testing of Residential Smoke Alarms

Report XF3033/R1 Smoke Sensitivity Testing of Residential Smoke Alarms

XF3033/61 (M001) through XF3033/120 (M060)

Report XF3033/R1 Smoke Sensitivity Testing of Residential Smoke Alarms

Report XF3033/R1 Smoke Sensitivity Testing of Residential Smoke Alarms

Report XF3033/R1 Smoke Sensitivity Testing of Residential Smoke Alarms

XF3033/121 (D001) through XF3033/180 (D060)

Report XF3033/R1 Smoke Sensitivity Testing of Residential Smoke Alarms

Report XF3033/R1 Smoke Sensitivity Testing of Residential Smoke Alarms

Report XF3033/R1 Smoke Sensitivity Testing of Residential Smoke Alarms

XF3033/181 (I001) through XF3033/240 (I060)

Report XF3033/R1 Smoke Sensitivity Testing of Residential Smoke Alarms

Report XF3033/R1 Smoke Sensitivity Testing of Residential Smoke Alarms

Report XF3033/R1 Smoke Sensitivity Testing of Residential Smoke Alarms

4 REFERENCE INFORMATION

The following information is provided to assist in the interpreting of the results detailed in this report.

4.1 Obscuration vs. Ionisation data

The data shown in Figure 5 demonstrates the relationship between smoke density measured by the reference IR obscurometer (measured in dB/m) and by the reference measuring ionisation chamber (MIC, measured in terms of “MIC y”). Refer to Section C2 of AS 3786:2014 for details of the MIC and its response values.

〔图〕插图

Figure 5. Typical response values of the reference obscuometer and MIC, as fitted to the CSIRO AS 3786 / AS 7240.2 test tunnel, to aspirated paraffin during tunnel sensitivity tests of smoke alarms and detectors.

4.2 Obscuration units

The data shown in Figure 6 and Figure 7 demonstrates the relationship between smoke density calculated in terms of the units of dB/m and %obscuration/m.

Report XF3033/R1 Smoke Sensitivity Testing of Residential Smoke Alarms

〔图〕插图

Figure 6. Relationship between smoke density as measured in dB/m and %obs/m to 10 %obs/m.

〔图〕插图

Figure 7. Relationship between smoke density as measured in dB/m and %obs/m to 50 %obs/m.