BS ISO IEC 28360 pdf download.Information technology — Office equipment — Determination of chemical emission rates from electronic equipment
1 Scope
This International Standard specifies methods to determine chemical emission rates of Analyte from ICT & CE equipment during intended operation in an Emission Test Chamber (ETC). The methods comprise preparation, sampling (or monitoring) in a controlled ETC, storage and analysis, calculation and reporting of emission rates. This International Standard includes specific methods for equipment using consumables, such as printers, and equipment not using consumables, such as monitors and PC’s. Annex A specifies monochrome and colour print patterns for use in the operating phase of EUT using consumables (e.g. paper). Examples of EUT that do not use consumables are: Monitors and TV sets (CRT, Plasma, LCD, Rear projector, Beamer). Video (VCR, DVD Player/Recorder, Camcorder). SAT Receiver (Set-Top Box). Audio units (CD Player/Recorder, Home theatre Systems, Audio Home Systems, Micro-/Mini, Midi Systems, Amplifier, Receiver). Portable Audio (CD Player, MP 3 Player, Radio recorder, Clock radio etc). Computer (desktop, tower, server), portable computers (Notebooks). Emission rates from EUT using consumables may also be determined according to additional requirements identified by “RAL-UZ 171 Option”. Calculations use the generalised model and approximations thereof as developed in Annex C. The emission rates determined with this method may be used to compare equipment in the same class. Predictions of “real indoor” concentrations from the determined emission rates are outside the scope of this International Standard.
4 Terms and definitions
For the purposes of this document, the following terms and definitions apply. 4.1 averaged concentration time series simple Moving Average of total particle number concentration (Cp) over 31±3 seconds 4.2 averaged ozone concentration time series Simple Moving Average of ozone concentration (Co3) over 80±5 seconds 4.3 aerosol suspension of fine solid particles and/or liquid droplets in a gas 4.4 aerosol measuring system AMS device for measuring the total number concentration of aerosol particles within a size range at a certain frequency 4.5 air exchange rate n ratio (n) of the volume of clean air brought into the ETC per hour [m 3 /h] to the unloaded ETC volume [m 3 ] 4.6 air velocity air speed [m/s] measured in the unloaded ETC 4.7 analyte volatile organic compounds (VOC), carbonyl compounds, ozone, particulate matter, fine particles (FP) and ultrafine particles (UFP) 4.8 condensation particle counter CPC AMS capable to measure the total particle number concentration NOTE AMS consist of a flow meter, a particle counting device, a computer and suitable software. An AMS may also be equipped with a particle size classifier. 4.9 consumables toner, ink, paper and ribbon 4.10 emission test chamber ETC enclosure with controlled operational parameters for testing analyte mass emitted from EUT 4.11 equipment under test EUT functional and complete ICT or CE equipment from which chemical emission rates are determined 4.12 fast AMS AMS with integrated particle size classifier 4.13 fine particles FP particles with particle size / diameter range between 0.1 μm and 2.5 μm 4.14 loading factor ratio of the EUT volume to the volume of the unloaded ETC 4.15 hard copy devices class of EUT using Consumables that includes printers, (Photo)copiers and Multi Functional Devices (MFD) 4.16 maximum usage time before testing MUT <EUT using consumables> ratio between the total number of prints carried out by the EUT and the printing speed of the EUT NOTE Maximum usage time is the maximum permitted time of operation before testing in order to consider the EUT as newly manufactured equipment for testing purposes. 4.17 operating phase phase in which the EUT is performing its intended functions 4.18 particle solid or liquid matter with defined physical boundaries suspended in a gas 4.19 particle emission rate PER averaged emission rate, i.e. total number of particles in a specified particle size range emitted during the operating phase 4.20 particle emission rate PER(t) time dependent emission rate of particles in a specified particle size range after the start of the operating phase 4.21 particle loss-rate coefficient β coefficient describes the loss of particles in a specified particle size range in an ETC 4.22 particle size / particle diameter measurement category to describe the physical dimension of a particle NOTE The term particle size is often used as a synonym for particle diameter. The particle diameter is used to assign a particle to a particle size class (e.g. UFP). 4.23 particulate matter PM quantity of particles measured by gravimetric methods 4.24 pre-operating phase phase in which the EUT is connected to an electrical supply before the EUT is able to enter the operating phase NOTE The pre-operating phase can include warming-up and energy saving modes. 4.25 post-operating phase phase following the operating phase NOTE The post-operating can include energy saving modes. 4.26 total number of emitted particles TP calculated total number of particles emitted in a specified particle size range
BS ISO IEC 28360 pdf download
