序文
ISO (国際標準化機構) 国家標準化団体の世界的な同盟です (ISO会員団体). 国際規格の開発は通常、ISO 技術委員会を通じて行われます。. 技術委員会が設立された主題に関心を持つ各加盟機関は、委員会に代表される権利を有する。. 標準化団体と連携する政府および非政府の国際機関もこの作業に関与しています。.

Draft international standards adopted by technical committees are circulated to member bodies for approval before they are accepted as international standards by the ISO Council. They are approved according to ISO procedures that require at least 75% approval by voting member institutions.

国際規格ISO 6713 was developed by the Technical committee ISO/TC 35 (塗料とワニス).

ISO 6713 was first published in 1980. 第 2 版はキャンセルされ、初版と置き換わりました, which constituted a technical revision.

ISO 6713-1984 “液体または粉末のラッカー酸抽出物の調製” 塗料およびワニス用

Scope and field of application
This standard describes the preparation of acid extracts as test solutions for the determination of the “可溶性” metal content of paints and related products in liquid or powder form.

Acid extracts were prepared in 0,07 mol/l hydrochloric acid, which was chosen as an approximation of the acid in the stomach.

This standard does not apply to dried or crushed paint films (ISOを参照 6714).

警告 – The procedures described in this standard are complex and should therefore be performed by personnel with appropriate experience in these analytical procedures. Sufficient accuracy can only be obtained if all details of the separation and extraction procedures are strictly followed.

2 Reference Materials
ISO 1042, 実験用ガラス器具 — Single-labeled volumetric flasks.

ISO 1512, 塗料とワニス — サンプリング.

ISO 1513, 塗料とワニス — 試験サンプルの検査と調製.

ISO 3696, laboratory water use — 仕様. 1)

ISO 3856, 塗料とワニス – の決意 “可溶性” 金属含有量.

ISO 6714, Paints and varnishes-Preparation of acid extracts from dry films.

ISO 6713-1984 “液体または粉末のラッカー酸抽出物の調製” 塗料およびワニス用

3 定義
この規格の目的のために, 次の定義が適用されます.

3.1 顔料

All particulate matter was insoluble in the selected extraction solvent (6.2).

3.2 “Soluble” metal content of liquid coatings

The metal content of the pigment soluble in a specified dilute acid plus the total metal content present in the liquid part of the paint.

注記 1: The dilute acid defined in this standard is 0.07mol/l hydrochloric acid.

3.3 “Soluble” metal content of paint in powder form

Metal content of paints soluble in specified dilute acids (ノートを参照してください 3.2).

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