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BSI PD CLC/TS 50640:2015

$215.11

Clothes washing machines for commercial use. Methods for measuring the performance

Published By Publication Date Number of Pages
BSI 2015 102
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This Technical Specification specifies methods for measuring the performance of clothes washing machines for commercial use utilizing cold and/or hot water supply and without heating or with heating devices for electricity, steam or gas. It also deals with appliances for both washing and drying textiles (washer-dryers) with respect to their washing related functions. This Technical Specification covers top, front and side loaded non household washing machines with horizontal or vertical axis and with one or more wash compartments. NOTE 1 Non household tumble dryer performance is assessed to CLC/TS 50594. NOTE 2 Installation and energy calculations of non-household washing machines heated with gas is assessed in EN ZZZZZ. The object is to state and define the principal performance characteristics of non-household washing machines and to describe the test methods for measuring these characteristics. NOTE 3 This Technical Specification does not apply to continuous batch washing machines (e.g. tunnel washers) or washing machines only possible to operate with automatic loading and unloading. NOTE 4 This Technical Specification does not specify safety requirements for non-household washing machines. Safety requirements are specified in EN 50571 and the EN ISO 10472 series.

PDF Catalog

PDF Pages PDF Title
8 Foreword
9 1 Scope
2 Normative references
10 3 Terms, definitions and symbols
3.1 Terms and definitions
13 3.2 Symbols
3.2.1 Symbols relating to 9.2 – washing performance
14 3.2.2 Symbols relating to 9.3 – water extraction (spinning)
3.2.3 Symbols relating to 9.4 – energy, water and time
3.2.4 Symbols relating to Annex F
3.2.5 Symbols relating to Annex G
15 4 Requirements
4.1 General
4.2 Rated Capacity
16 4.3 Dimensions
5 Test conditions, materials, equipment and instrumentation
5.1 General
17 5.2 Reference machine
5.3 Ambient conditions
5.3.1 Electricity supply
5.3.2 Water supply
5.3.2.1 General
5.3.2.2 Water hardness
5.3.2.3 Water temperature
18 5.3.2.4 Water pressure
5.3.3 Ambient temperature and humidity
5.3.3.1 Ambient temperature and humidity for washing machine testing
5.3.3.2 Ambient temperature and ambient relative humidity for conditioning of base load items
19 5.4 Test materials
5.4.1 General
5.4.2 Base load
Table 1 — Size and mass of the different base load items
5.4.3 Stain test strips
20 5.4.4 Detergents
5.5 Equipment
5.5.1 General
5.5.2 Reference machine
21 5.5.3 Spectrophotometer
5.5.3.1 General
5.5.3.2 Calibration
5.5.4 Equipment for conditioning the base load
22 5.5.5 Iron for preparation of stain test strips after washing
5.5.6 Other equipment
5.6 Instrumentation and accuracy
5.6.1 General
23 5.6.2 Instruments
24 5.6.3 Measurements
6 Preparation for testing
6.1 General
6.2 Test washing machine and reference machine preparation
6.2.1 Test washing machine
6.2.1.1 General
6.2.1.2 Preparation of the test washing machine after installation
6.2.1.3 Preparation of the test washing machine for a test series
25 6.2.1.4 Preparation of the test machine for a test run
6.2.2 Reference machine
6.3 Detergent
6.3.1 General
26 6.3.2 Detergent dose
Table 2 — Detergent Dose
6.3.3 Mixing detergent
6.3.4 Detergent placement
6.3.5 Placing detergent into the drum base
27 6.4 Test loads
6.4.1 General
Figure 1 — Load item preparation prior to a test series
28 6.4.2 Pre-treatment of new base load items prior to use
6.4.3 Requirements regarding the maximum age of base load items
6.4.4 Normalization of base load items before a new test series
6.4.4.1 General
6.4.4.2 Normalization of base load items before a new test series
6.4.5 Conditioning of base load items before a new test series
6.4.5.1 General
29 6.4.5.2 Conditioning of base load items in an ambient controlled room/chamber
6.4.5.3 Conditioning of base load items using the bone dry method
6.4.6 Test load composition
6.4.6.1 Test load composition
6.4.6.2 Determination of the test load mass
30 Table 3 — Number of different load items in the test load for various test load masses
31 6.4.7 Calculation of loads not shown in Table 3
6.4.8 Addition of stain test strips to the base load
6.4.8.1 General
6.4.8.2 Attachment of stain test strips to base load
Figure 2 — Attached test strip
32 7 Performance measurements – general requirements
8 Tests for performance
8.1 General
33 8.2 Test procedure for performance tests
8.2.1 Test conditions, materials and preparation for testing
8.2.2 Test load and loading
8.2.3 Programme
8.2.4 Test procedure
34 8.2.5 Test series
8.2.5.1 General
8.2.5.2 Evaluation of results (reference to 9.1) where more than 5 test runs are undertaken in a test series
8.3 Measurements to determine washing performance
8.3.1 General
35 8.3.2 Removal and drying of stain test strips
8.3.3 Assessment of stain test strips
Figure 3 – Positions for measuring soiled test pieces
36 8.4 Measurements to determine maximum spin speed
8.5 Measurements to determine water extraction performance
8.5.1 General
8.5.2 Washing machines
8.5.3 Spin extractors
8.6 Measurement to determine the bath temperature
37 8.7 Measurements to determine water and energy consumption and programme time
8.7.1 General
8.7.2 Procedure
8.7.3 Measurement of energy supplied by electricity
8.7.4 Measurement of energy supplied by steam
8.7.5 Measurement of energy supplied by gas
8.7.6 Measurement of energy consumed via compressed air
38 9 Assessment of performance
9.1 General
9.2 Evaluation of washing performance
40 9.3 Evaluation of water extraction performance
41 9.4 Evaluation of water and energy consumption and programme time
9.4.1 General
9.4.2 Water volumes
9.4.3 Bath temperature
9.4.4 Programme time
9.4.5 Energy consumption
9.4.5.1 General
42 9.4.5.2 Cold water energy correction factor
9.4.5.3 Hot water energy
43 10 Data to be reported
44 Annex A (normative) Specification of stain test strips with standardized soiling
A.1 Artificial soils
A.2 Supporting fabric for soil
A.2.1 Material
A.2.2 Weaving
45 A.2.3 Pre-Treatment
A.2.3.1 General
A.2.3.2 Reflectance
A.2.4 Reproducibility
A.3 Artificial soil
A.3.1 Soiling composition
A.3.1.1 Composition of soil based on sebum/pigment
A.3.1.2 Composition of soil based on carbon black and mineral oil
46 A.3.1.3 Composition of soil based on blood
A.3.1.4 Composition of soil based on chocolate with milk
A.3.1.5 Composition of soil based on red wine
A.4 Stain test strips
A.4.1 Application of soil
A.4.2 Soil checking after deposition of soil
A.4.3 Washed reflectance values
47 Table A.1 — Ratios and tolerances of standardized soils: Reference Machine CLS
A.5 Marking of stain test strips and accompanying data
A.6 Advice for users
A.7 Suppliers
48 Annex B (normative) Reference detergents — Reference detergent A*
Table B.1 — Composition of the reference detergent A*
50 Annex C (normative) Specifications for base load — Cotton/synthetics base loads
Table C.1 — Specification of the Cotton/synthetics base loads
52 Annex D (normative) Reference machine specification — Specification of the reference washing machines and method of use
D.1 General
D.2 Further Information
D.3 Reference machine: Method of use
D.3.1 Installation of the reference machine
D.3.2 Regular maintenance
53 Table D.1 — Description of the reference washing machine and method of use
54 D.3.3 Before test series
D.3.4 During a test series
55 Annex E (normative) Reference machine programme definitions
E.1 General
E.2 Programming instructions
E.3 Tolerances
E.4 Start up programme
56 Table E.1 — Specification of reference washing programme
57 Table E.2 — Tolerances given for some procedure parameters
58 Annex F (normative) The bone-dry method of conditioning
F.1 General
F.2 Tumble Dryer Specifications
F.3 Bone Dry Procedure – Electric Dryers
59 F.4 Bone Dry Procedure – Gas Dryers
60 Annex G (normative) Folding and loading the test load
G.1 General
G.2 Folding the items prior to loading the washing machine
G.2.1 General
G.2.2 Test load
G.2.2.1 Medium sheet with a stain test strip attached
61 Figure G.1 — Folding medium sheet with a stain test strip attached
G.2.2.2 Small sheet
Figure G.2 — Folding small sheet
G.2.2.3 Medium sheet without a stain strip attached
62 Figure G.3 — Folding medium sheets
G.2.2.4 Large sheets
Figure G.4 — Folding large sheets
G.3 Loading Items into the washing machine – general rules
G.3.1 Machine type
G.3.1.1 General
G.3.1.2 Horizontal axis washing machines
63 Figure G.5 — Illustration of horizontal axis washing machine
G.3.1.3 Vertical axis washing machines
Figure G.6 — Illustration of vertical axis washing machine
64 G.3.2 Loading sequences
G.3.2.1 General rules
G.3.2.2 Items with attached strip
G.3.2.2.1 General
G.3.2.2.2 Loading for horizontal axis washing machines
Figure G.7 — Horizontal axis washing machine: placement of items in the drum
G.3.2.2.3 Loading for vertical axis washing machines
65 Figure G.8 — Vertical axis washing machine: placement of items in the drum
G.4 Loading requirements for the test load – horizontal axis washing machines
G.4.1 General loading directions
G.4.1.1 General
G.4.1.2 Amount of test load and soiled strips
G.4.2 Horizontal axis washing machine: loading step by step
G.4.2.1 General
Table G.1 — Orientation of test load items within a part load
66 G.4.2.2 Sorting rules
G.4.2.3 Example showing how a 15 kg load shall be divided into part loads and then loaded into a horizontal axis washing machine
Table G.2 — Part load items for a 15 kg test load
67 G.4.2.4 Example of part load compositions
Table G.3 — Part load items for a 5 kg test load
Table G.4 — Part load items for a 10 kg test load
Table G.5 — Part load items for a 20 kg test load
68 Table G.6 — Part load items for a 100 kg test load
G.4.2.5 Part load items for loads sizes not shown in Table G.2 to G.6
G.4.3 Loading the horizontal axis machines
Figure G.9 — Schematic view of part loads within a large drum
69 G.5 Loading requirements for vertical axis washing machines
G.5.1 General loading directions
G.5.2 Vertical axis washing machine: loading step by step
G.6 Loading of multi compartment machines
G.6.1 General loading information
G.6.2 Loading procedure
G.7 Performance testing with loads other than a full load — General information
G.8 Calculation of the composition of test load items for load sizes above 10 kg and not shown in the Table 2 or Table 3
G.8.1 General
G.8.2 Calculation of the load composition is done according to following formula:
71 Annex H (normative) Measuring the bath temperature
H.1 General
H.2 Specification of the loggers
Table H.1 — Specification of temperature logger suitable for temperature measurement for both washing and drying
H.3 Preparation of the loggers before measurement
H.4 Number of loggers
72 Table H.2 — Number of temperature loggers for bath temperature measurement
H.5 Measuring the temperature
H.6 Presenting the result
73 Annex I (informative) Performance testing of gas fired washing machines
I.1 General
I.2 Installation, testing procedure and calculation of supplied gas energy
74 Annex J (normative) Performance testing of steam heated washing machines
J.1 General
J.2 Types of steam heating
J.2.1 Direct steam heating
J.2.2 Indirect steam heating
J.3 Specification of steam properties
J.3.1 Type of steam
J.3.2 Steam generator
J.4 Equipment and instrumentation
J.4.1 Test equipment for measuring the characteristics of steam
J.4.1.1 Flow meter for measurement of steam velocity and mass flow
75 J.4.1.2 Pressure sensor for measurement of the steam pressure
J.4.1.3 Temperature sensor for measurement of the steam and condensate temperature
J.4.1.4 Scale for measurement of the mass of the condensate
J.4.1.5 Steam calculator
J.4.2 Instruments
J.4.3 Measurements
76 J.5 Installation
J.5.1 General
J.5.2 Installation of the measure equipment for direct steam heated washing machines
77 Figure J.1 — Schematic installation of the measurement equipment for direct steam heated washing machines
J.5.3 Installation of the measurement equipment for indirect steam heated washing machines.(Alternative 1)
78 Figure J.2 — Schematic installation of the measurement equipment for indirect steam heated washing machine (Alternative 1)
J.5.4 Installation of the measurement equipment for indirect steam heated washing machines. (Alternative 2)
79 Figure J.3 — Schematic installation of the measurement equipment for indirect steam heated washing machine (Alternative 2)
J.6 Preparation for testing
J.6.1 General
J.6.2 Direct heated washing machines and indirect heated washing machines installed according to alternative 1
80 J.6.3 Indirect heated washing machines installed according to alternative 2
J.7 Tests for performance
J.7.1 General
J.7.2 Performance testing of direct steam heated washing machines
J.7.3 Performance testing of indirect steam heated washing machines installed according to alternative 1
81 J.7.4 Performance testing of indirect heated washing machines installed according to alternative 2
J.7.4.1 General
J.7.4.2 Control of accuracy
J.8 Assessment of performance
J.8.1 General
82 J.8.2 Evaluation of performance of direct steam heated washing machines
J.8.2.1 Evaluation of supplied steam energy
J.8.2.2 Evaluation of total energy supplied to the washing machine by steam
J.8.2.3 Evaluation of the supplied mass of steam to main wash
J.8.3 Evaluation of performance of indirect heated washing machines installed according to Alternative 1
J.8.3.1 General
J.8.3.2 Evaluation of supplied steam energy
J.8.3.3 Evaluation of the energy to be recovered through the condensate
83 J.8.4 Evaluation of performance of indirect heated washing machines installed according to Alternative 2
J.8.4.1 General
J.8.4.2 Evaluation of supplied steam energy
J.8.4.3 Evaluation of the energy to be recovered through the condensate
J.8.5 Evaluation of total energy supplied to the washing machine by steam
J.9 Data to be reported
84 Annex K (normative) Procedure to determine test load size when rated capacity is not declared
K.1 General
K.2 Determination of the test load mass
K.3 Determination of the drum volume
85 Figure K.1 — Cross section of drum and lifter
86 Figure K.2 — Figure showing how the drum diameter d shall be measured for different kind of drum perforation
87 Figure K.3 — Definition of volumes V3 to V6
Figure K.4 — Definition of volume V1 and V2
88 Annex L (informative) Uncertainty of measurements in the present document
L.1 Why is uncertainty important?
L.2 Documents referenced in this annex
L.3 Ways to access uncertainty
L.3.1 General
L.3.2 The bottom up method
89 L.3.3 The top down method
L.4 Uncertainty of measurement in the present document
90 L.5 Reporting uncertainty
92 Annex M (normative) Test report – Data to be reported
M.1 General
M.2 Data for test washing machine
Table M.1 — Data for test washing machine
M.3 Data, parameters and results for the test series
93 Table M.2.1 — Data, parameters and results
96 Table M.2.2 — Performance results of the test washing machine
M.4 Materials used for the test series
Table M.3 — Materials
97 M.5 Standard Equipment used for the test series
Table M.4 — Equipment
98 Annex N (informative) Sources of materials and supplies
N.1 General
N.2 Suppliers for Reference Machine
N.3 Suppliers for Test Materials
99 Bibliography
BSI PD CLC/TS 50640:2015
$215.11