IEC PAS 62473:2007

PUBLICLY
IEC
AVAILABLE
PAS 62473
SPECIFICATION
First edition
Pre-Standard
2007-04
Clothes washing machines
for household use –
Methods for measuring the mechanical
action in household washing machines

Reference number
IEC/PAS 62473:2007(E)
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PUBLICLY
IEC
AVAILABLE
PAS 62473
SPECIFICATION
First edition
Pre-Standard
2007-04
Clothes washing machines
for household use –
Methods for measuring the mechanical
action in household washing machines

PRICE CODE
Commission Electrotechnique Internationale
V
International Electrotechnical Commission
Международная Электротехническая Комиссия
For price, see current catalogue

– 2 – PAS 62473 © IEC:2007(E)
CONTENTS
FOREWORD.4
INTRODUCTION.5
1 Scope .6
2 Normative references .6
3 Terms, definitions and symbols .6
4 General conditions for measurements .6
4.1 General .6
4.2 Resources and ambient conditions.7
5 Materials .7
5.1 Base load .7
5.2 Test materials.7
5.2.1 Thread removal material .7
5.2.2 Dot removal material .8
5.2.3 Fraying specimens .8
5.3 Preparation .8
5.4 Amount of test specimens used.8
5.5 Detergent .9
6 Instrumentation and accuracy .9
7 Test procedure .9
7.1 Loading .9
7.2 Unloading and drying of test specimens .9
7.3 Repeating of test procedure.9
8 Evaluation .10
8.1 Thread removal method .10
8.2 Dot removal method .10
8.3 Fraying method .10
9 Data to be reported.10
10 Sources of test materials .10
10.1 Thread removal method (5.2.1) .10
10.2 Dot removal method (5.2.2).10
10.3 Fraying method (5.2.3) .11
Annex A (normative) Thread removal material – Preparation of test specimen.12
Annex B (normative) Loads and loading .13
B.1 General .13
B.2 Test load mass .13
B.3 Loading .15
Annex C (normative) Thread removal material – Evaluation .27
C.1 General .27
C.2 Evaluation .28
Annex D (normative) Dot removal material – Evaluation.31
D.1 Evaluation .31

PAS 62473 © IEC:2007(E) – 3 –
Annex E (normative) Fraying material – Evaluation.33
E.1 General .33
E.2 Evaluation .33

Figure 1 – Thread removal specimen.7
Figure 2 – Dot removal specimen .8
Figure 3 – Fraying specimen .8
Figure B.1 – General loading direction for horizontal axis machines .17
Figure B.2 – How to load towel/pillowcase with strip .17
Figure B.3 – How to load towel without strip .18
Figure B.4 – How to load pillowcases without strip.18
Figure B.5 – How to load bed sheets .19
Figure B.6 – General loading directions for vertical axis machines .21
Figure B.7 – How to load towels/pillowcases with strip.22
Figure B.8 – How to load towels without strips.22
Figure B.9 – How to load pillowcases without strip.23
Figure B.10 – How to load bed sheets .23
Figure C.1 – Thread removal specimen after test run.27
Figure C.2 – “Not remaining” and “remaining” threads.28
Figure C.3 – Thread counting after test run .28
Figure C.4 – Square counting after test run: left and right side examples .29
Figure D.1 – Measuring spots on dot removal specimen .31
Figure E.1 – Part of fraying specimen after test run .33
Figure E.2 – Evaluation for test specimen 1.34

Table B.1 – Cotton test load mass.13
Table B.2 – Synthetics/blends test load mass .14
Table B.3 – Polyester test load mass .15
Table B.4 – Loading sequence step by step for horizontal axis machine.20
Table B.5 – Small loads without sheet (1,0 to 2,5 kg).24
Table B.6 – Average loads with two sheets (3,0 to 7,0 kg) .25
Table B.7 – Large loads with three sheets (7,5 to 8,5 kg).25
Table B.8 – Extra large loads with four sheets (9,0 to 10,0 kg).26

– 4 – PAS 62473 © IEC:2007(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
CLOTHES WASHING MACHINES FOR HOUSEHOLD USE –
METHODS FOR MEASURING THE MECHANICAL ACTION
IN HOUSEHOLD WASHING MACHINES
FOREWORD
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A PAS is a technica
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