IEC 62321-10-2020 pdf free download

IEC 62321-10-2020 pdf free download.Determination of certain substances in electrotechnical products Part 10: Polycyclic aromatic hydrocarbons (PAHs) in polymers and electronics by gas chromatography-mass spectrometry (GC-MS)
Determination de certaines substances dans les produits électrotechniques Partie 10: Hydrocarbures aromatiques polycycliques (HAP) dans es polymères et les produits électroniques par chromatographie en phase gazeusespectrométrie de masse (GC MS).
a) 1 000 mg/I each standard mixed stock solution:
The standards of Table 2 are respectively weighed to 0,1 g (100 mg) with an accuracy of 0,001 g, then placed in a 100 ml beaker, dissolved in a small amount of dichloromethane (Clause 5 a)), and measuring the volume of 100 ml after they are filled up with dichloromethane graduated to the mark and transferred to a flask (Clause 6 b)) in order to well shake the mix. (If necessary, it may be shaked ultrasonically.)
b) Intermediate standard mixed solution of 20 mg/I for GC-MS analysis:
Pipet 2 ml from each stock standard solution (8.4.3 a)) and 2 ml surrogate standard solution (8.4.5 b)) into a 100 ml volumetric flask and fill with dichloromethane up to the mark.
c) Intermediate standard mixed solution of 10 mg/I for GC-MS analysis:
Pipet 1 ml from each stock standard solution (8.4.3 a)) and I ml surrogate standard solution (8.4.5 b)) into a 100 ml volumetric flask and fill with dichloromethane up to the mark.
d) For low concentration samples, test standard solutions for GC-MS analysis:
For the preparation of low concentrations of the calibration standard solution (8.4.3 e) to 8.4.3 h)), PAH standard solutions are prepared for GC-MS analysis as shown in Table 3. These standard solutions each contain (20, 50, 100, 200) pg/I of one of the 18 PAH compounds. Internal standards each contain 50 pg/I of substance (such as naphthalened8, anthracene-dlO and benzo[a]pyrene-d12).
e) 20 pg/I calibration standard solution:
Pipet 0,02 ml from the 10 mg/I standard solution and 0,1 ml from the 5 mg/I working internal standard solution into a 10 ml volumetric flask and fill with dichloromethane up to the mark.
f) 50 pg/I calibration standard solution:
Pipet 0,05 ml from the 10 mg/I standard solution and 0,1 ml from the 5 mg/I working internal standard solution into a 10 ml volumetric flask and fill with dichloromethane up to the mark.
g) 100 pg/I calibration standard solution:
Pipet 0,1 ml from the 10 mg/I standard solution and 0,1 ml from the 5 mg/I working internal standard solution into a 10 ml volumetric flask and fill with dichloromethane up to the mark.IEC 62321-10-2020 pdf free download.