IEC 62321-1-2013 pdf free download
IEC 62321-1-2013 pdf free download.Determination of certain substances in electrotechnical products – Part 1: Introduction and overview.
IEC 62321-1 refers to the sample as the object to be processed and measured according to the test methods to determine the levels of certain substances. A sample can either be a polymer, a metal or electronics.
The entity carrying Out the test methods shall define the sample and how to produce it with respect to applicable normative documents.
NOTE The entity can either be the organization commissioning the work or the organization carrying Out the work. In practice, the requestor and the analyst will agree on the sample to be taken.
The entity may decide to prepare a sample from homogenous material. For this kind of sample, the test methods applicable to metals or polymers are especially suitable.
The entity may also decide to prepare a sample from an electronic component, an electronic assembly or a FRU. For this kind of sample, the test methods applicable to electronics are especially suitable.
4.3 Test methods — Flow chart
Figure 1 gives a flow chart of the test methods to determine the levels of certain substances in electrotechnical products.
After obtaining the sample, a decision is taken as to whether the screening procedure or the verification procedure using a variety of test methods will be used.
The use of the term screening for the evaluation of certain substances (e.g. lead, cadmium, hexavalent chromium, etc.) in electrical and electronic equipment is widely used in reference to analytical testing methods. Screening methods provide the analyst a convenient approach to evaluate for the presence or quantity of certain substance(s) in samples. Screening may employ qualitative or semi-quantitative methods. In some cases, a quantitative method may be used for screening purposes if the actual targeted substance(s) are difficult to analyse directly (e.g. hexavalent Cr).
Depending on the screening results however, additional analysis methods may need to be employed to definitively verify the presence or quantity of certain substances. These definitive analysis methods are referred to as verification methods.
While X-ray fluorescence spectrometry (XRE) is the tool most commonly associated with the screening approach, it is not limited to this analytical measurement technique. Users of this family of standards will understand that multiple measurement techniques can be employed for the purpose of screening.
Screening for hexavalent chromium (Cr VI) for example, can be accomplished by a total chromium measurement using a non-destructive XRF analysis method. Similarly. total chromium analysis could be performed by a destructive analysis using an inductively coupled plasma measurement method. Either measurement can be effectively employed to evaluate for the presence or quantity of hexavalent chromium since the concentration of the hexavaleni species can be no greater than the total chromium concentration value.
Likewise, a total bromine measurement using a non-destructive XRF analysis method or C-IC method can be used in the same fashion. Either measurement can be effectively employed to evaluate for the presence or quantity (PBBs) or (PBDE5) in a sample when relating the total bromine content to the composition of these compounds.
In both examples however, the detection of elevated total element levels requires additional verification method analysis (e.g. UV-VIS or GC-MS techniques) to confirm the potential presence or quantity of hexavalent chromium (Cr +IV) or PBBIPBDE compound species.IEC 62321-1 pdf free download.
