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、その委員会に代表される権利を有する。. ISO と連携する国際政府および非政府組織もこの作業に関与しています。. ISO は国際電気標準会議と緊密に連携しています。 (IEC) 電気技術の標準化に関するあらゆる事項について.

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本書の内容によっては特許権の対象となる場合がありますのでご注意ください。. ISO は、そのような特許の一部またはすべてを特定する責任を負いません。. 文書の作成中に特定された特許権の詳細は、ISO が受領した特許請求の序論および/またはリストに記載されます。 (iso.org/patentsを参照してください。).

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This document is prepared by Technical Committee ISO/TC 35, 塗料とワニス, 分科会SC 12, Preparing steel substrates prior to application of paints and related products.

The third edition cancels and replaces the technically revised second edition (ISO 8504-2:2000). 前版からの主な変更点は以下の通りです:

— Updating Article 2, normative reference;

— Edit and revise.

ISO 内のすべての部品のリスト 8504 シリーズは ISO Web サイトで見つけることができます.

Any feedback or questions about this document should be directed to the user’s national standards body. A complete list of these institutions can be found at iso.org/members.html.

ISO 8504-2-219 “塗料および関連製品を使用する前の鋼基材の準備 – 表面処理方法 – 一部 2: サンドブラスト洗浄”

導入
The properties of protective coatings applied to steel and related products are significantly affected by the state of the steel surface before coating. このパフォーマンスに影響を与えることが知られている主な要因は次のとおりです。

— the presence of rust and dirt,

— The presence of surface contaminants, 塩を含む, ほこり, オイルとグリス, そして

– Surface outline.

ISO 8501, ISO 8502, およびISO 8503 series provide methods for assessing these factors, ISO中 8504 series provides requirements and guidance for preparation methods that can be used to clean steel substrates, indicating the ability of each method to achieve specified levels of cleanliness.

ISO 8504 series is suitable for new and corroded steel surfaces as well as uncoated or previously coated steel surfaces with paints and related products.

These international standards do not contain provisions for protective coating systems applied to steel surfaces. They do not contain provisions for surface quality requirements specific to specific cases, even though surface quality can directly influence the choice of protective coating to be applied and its properties. These provisions are found in other documents such as national standards and codes of practice. Users of these international standards should ensure the prescribed quality

– Compatible with and applicable to the environmental conditions to which the steel is to be exposed and the protective coating system to be used, そして

— Within the capacity of the specified cleaning procedure.

The main purpose of the finish is to ensure the removal of harmful substances and to obtain a surface that allows the primer to have satisfactory adhesion to the steel. It is also designed to help reduce the amount of contaminants that cause corrosion.

Sand blasting cleaning is the most effective method of mechanical surface treatment. It is widely used because this surface treatment method has many of the versatile functions listed below.

– This method allows for high productivity.

The device can be fixed or mobile and adapted to the object to be cleaned.

This method is suitable for most types and forms of steel surfaces.

Many different surface states can be produced, such as different preparation grades and surface profiles.

– Can produce cleaning, shot peening, coarsening, smooth grinding and other effects.

– Selective removal of some failed coatings, leaving sound coatings intact.

— Abrasive bounce (rebound) cleans otherwise inaccessible areas.

1 範囲
This document specifies the method of sandblasting cleaning the surface of the steel before painting and related products are applied. It provides information about the effectiveness of each method and its application area. It describes the equipment to use and the procedures to follow.

Note that these methods are mainly used for hot rolled steel to remove scale, rust, 等, but can also be used for cold rolled steel of sufficient thickness to withstand deformation caused by abrasive impact.

ISO 8504-2-219 “塗料および関連製品を使用する前の鋼基材の準備 – 表面処理方法 – 一部 2: サンドブラスト洗浄”

2 規範的参照
以下のファイルは、内容の一部またはすべてがこの文書の要件を構成するように本文中で参照されています。. 日付の付いた参照については, 引用のみのバージョンが適用されます. 日付のない参考文献については, リファレンスの最新バージョン (改訂も含めて) 当てはまる.

ISO 4628-3, 塗料とワニス – コーティング劣化の評価 – Designation of intensity of uniform change in the number and size of defects and appearance – 一部 3: Assessment of degree of rusting

ISO 8501 (すべての部品), Preparation of steel substrates prior to painting and related products — 表面の清浄度の視覚的評価

ISO 8502 (すべての部品), Preparation of steel substrate – Surface cleanliness Assessment tests prior to coating of paints and related products

ISO 8503 (すべての部品), Preparation of Steel substrate prior to application of paint and related products – sandblasting clean the surface roughness characteristics of steel substrate

ISO 11124 (すべての部品), Specification for Preparation of Steel Substrate – Metal Sandblasting cleaning abrasives prior to application of paint and related products

ISO 11126 (すべての部品), Preparation of Steel Substrates prior to application of paints and related products-Specification for Non-metallic abrasive blasting for cleaning

3 用語と定義
この文書の目的のために, 次の用語と定義が適用されます.

3.1 Sand blasting cleaning

The high kinetic energy abrasive flow is impounded onto the surface to be prepared

3.2 Sand blast cleaning abrasives

Solid materials for sandblasting cleaning (3.1)

3.3 Shooting

A predominantly circular grain, less than twice the maximum grain width, and free of edges, broken surfaces, or other sharp surface defects

3.4 砂利

The main angular, surface fracture, sharp edge, shape less than semicircle particles

3.5 Cylinder

A sharp-edged particle with a diameter to length ratio of 1:1 and cut so that its face is approximately at right angles to its center line

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