IEC 62321-7-1 Ed. 1.0:2015 (b)
電気・電子機器中における特定物質の定量－第7-1部：六価クロム－比色法による金属の無色又は着色防食被膜中の六価クロム(Cr(VI))の存在
Determination of certain substances in electrotechnical products - Part 7-1: Hexavalent chromium - Presence of hexavalent chromium (Cr(VI)) in colourless and coloured corrosion-protected coatings on metals by the colorimetric method
発行年月日：
2015-09-16
状態：
有効
邦訳版：
有（ 英・日対訳版）
英語 37ページ
22,137 円（税込） 本体価格：20,125円
邦訳 44ページ
37,631 円（税込） 本体価格：34,210円
- 規格概要
-
IEC 62321-7-1:2015 describes a boiling water extraction procedure intended to provide a qualitative determination of the presence of hexavalent chromium (Cr(VI)) in colourless and coloured corrosion-protection coatings on metallic samples. In this procedure, when Cr(VI) in a sample is detected below the 0,10 g/cm2 LOQ (limit of quantification), the sample is considered to be negative for Cr(VI). Since Cr(VI) may not be uniformly distributed in the coating even within the same sample batch, a ""grey zone"" between 0,10 g/cm2 and 0,13 g/cm2 has been established as ""inconclusive"" to reduce inconsistent results due to unavoidable coating variations. In this case, additional testing may be necessary to confirm the presence of Cr(VI). When Cr(VI) is detected above 0,13 g/cm2, the sample is considered to be positive for the presence of Cr(VI) in the coating layer.全文を表示する
| TC |
TC 111 |
|---|---|
| ICS |
13.020 43.040.10 |
| 備考 | IEC 62321シリーズ規格集はこちら |
