BS EN 62885-3:2015 pdf download – Surface cleaning appliances Part 3: Wet carpet cleaning appliances — Methods for measuring the performance
Measurements on carpets shall be carried out on a flat floor consisting of a smooth untreatedpine plywood or equivalent panel, at least 15 mm thick and of a size appropriate for the test.
Equipment and materials for measurements (devices,test carpets,soil, test dust,etc.) to beused in a test shall,prior to the test，be kept for at least 16 h at standard atmosphericconditions according to 4.1.
lt is recommended that carpets that are already being used shall be stored unbeaten atstandard atmospheric conditions according to 4.1. When not in use they should be hangingfree, not lying or rolled.
4.3Voltage and frequency
Measurements shall be carried out at rated voltage with a tolerance of ±1 % and, if applicable,at rated frequency.
Wet cleaning appliances designed for d.c. only shall be operated at d.c. Wet cleaningappliances designed for both a.c. and d.c. shall be operated at a.c. Wet cleaning appliancesnot marked with rated frequency shall be operated at either 50 Hz or 60 Hz, as is common inthe country of use.
For wet cleaning appliances with a rated voltage range, measurements shall be carried out atthe mean value of the voltage range if the difference between the limits of the range does notexceed 10 % of the mean value. lf the difference exceeds 10 % of the mean value,measurements shall be carried out both at the upper and lower limits of the voltage range.
lf the rated voltage differs from the nominal system voltage of the country concerned,measurements carried out at rated voltage may give test results misleading for the consumerand additional measurements may be required. lf the test voltage differs from the ratedvoltage, this shall be reported.
4.4Running-in of wet cleaning appliance and attachments
Prior to the initial test, the wet cleaning appliances and their attachments, if any, shall be keptrunning with unrestricted air flow for at least 2 h to ensure adequate running-in.For extractorswith agitation or power nozzles, the agitation device shall be running but not in contact withthe floor. Cleaning solution is not to be dispensed during this running-in period.
Prior to conducting any series of tests, the age, condition, and history of the product shall berecorded.
Clean water should be flushed through unit prior to testing (pump does not need to be run-inother than when flushing the unit with clean water.
4.5Equipment of the wet cleaning appliance
Maintenance & replacement of the wet cleaning appliance components should be addressedas per the product instruction guide.
4.6Operation of the wet cleaning appliance
The wet cleaning appliance and its accessories shall be used and adjusted in accordance withthe manufacturer’s instructions for normal operation for the test to be carried out.
The tube grip of cleaners with suction hose or the handle of other cleaners shall be held as fornormal operation at a height of(800± 50) mm above the test floor.
4.7Conditioning prior to tests
lf the wet cleaning appliance is unused and de-energized for more than 1 h, then the wetcleaning appliance and attachments to be used shall be kept running for at least 10 minutesunder the provisions given in 4.4 to allow them to stabilise.Cleaning solution is not to bedispensed during this 10 minute warm-up period.
All measurements of performance shall be carried out on the same sample(s) of the wetcleaning appliance with its accessories and attachments, if any.
lt is recommended that a minimum of three should be used to achieve statistically significantresults.
Tests carried out to simulate stresses that a wet cleaning appliance may be exposed to duringnormal use, possibly causing impairment of the cleaner’s performance, may require additionalsamples of replaceable parts. Such tests shall be carried out at the end of the testprogramme.
4.8ln-house reference cleaner system(s)
lt is required that in-house reference cleaner system(s) be used to regularly check and ensurethe test is in control and cleaning results are not shifting due to possible batch to batchvariability in carpet soil, lot to lot variability in carpeting, etc.
5 Cleaning tests
5.1 Dry cleaning tests
For combined dry and wet cleaning appliances the performance related to dry cleaning shallbe measured by applying the methods in lEC 60312-1.
Where appropriate dry cleaning tests are required,methods included in lEC 60312-1 shall beused.