導入
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) 電気の標準化に関するあらゆる問題について.

この文書の作成に使用される手順と、さらなるメンテナンスに使用される手順については、パートで説明されています。 1 ISO/IEC 指令の. 特に, さまざまな種類の ISO 文書に必要なさまざまな承認基準に注意を払う必要があります。. この文書は、ISO/IEC 指令パートの編集規則に従って作成されています。 2 (iso.org/directives を参照してください。).

この文書の特定の要素は特許権の対象となる場合があることに注意してください。. 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、序論および/または ISO が受理した特許請求の範囲のリストに記載されています。 (iso.org/patentsを参照してください。).

ISO 21683-2019 “塗料からのナノオブジェクトの放出, 顔料と充填剤を決定するために実験的にシミュレートされたワニスと着色プラスチック”

この文書で使用されている商号はユーザーの便宜のために提供されており、推奨を構成するものではありません。.

自主的, related standards and conformity assessment related ISO specific and express the meaning of terminology as well as in relevant ISO technical barriers to trade (未定) adhere to the principle of the world trade organization (WTO) information, 以下のURLを参照してください:iso.org/iso/foreword.html.

This document was prepared by the ISO/TC 256 Technical Committee on Pigments, Dyes and Fillers.

Any feedback or questions regarding 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.

導入
Nanoobjects (nanoscale pigments and fillers) can be released from paints, varnishes and tinted plastics into the surrounding air or liquids, which is an important health and safety consideration for the end user and the environment. したがって, it is important to obtain data on the tendency of tinted coatings and plastics to release nanoobjects, so that exposure [10] can be assessed, 制御された, and minimized. This property may depend on the physical and chemical properties of the nanoobject and the substrate containing the nanoobject.

ISO 21683-2019 “塗料からのナノオブジェクトの放出, 顔料と充填剤を決定するために実験的にシミュレートされたワニスと着色プラスチック”

Methods currently available to assess the tendency of pigments, ワニス, and plastics to release nano-objects into the air require energy to be applied to the sample to induce wear, erosion, or comminentation, which causes the particles to diffuse into the gas phase, つまり, produce aerosols.

Due to their high sensitivity, particle number concentration and quantity weighted particle size distribution are necessary to quantify the release of nanoobjects, since particle mass depends on the cubic particle size and the mass concentration of nanoobjects is too low to detect them with currently commercially available instruments. Further measurements, such as total particle surface concentration, such as references [11] そして [12], may help explain, 例えば, health aspects. If the shape, morphology, porosity and density of the granular material is known, it can be precisely converted to different quantity types by measuring the total particle size distribution.

In addition to selecting the appropriate measuring instrument, quantitative assessment of process-induced particle release requires detailed information about the sample, the stress introduced, and the type of interconnect with the instrument. 形 1 shows, 例えば, the single stages that need to be considered when quantitatively characterizing particulate matter release in the air.

ISO 21683-2019 “塗料からのナノオブジェクトの放出, 顔料と充填剤を決定するために実験的にシミュレートされたワニスと着色プラスチック”

1 範囲
This document specifies a method for experimentally determining the release of nanoscale pigments and fillers into the environment under mechanical stress in paints, varnishes and tinted plastics.

The method is used to assess whether and how many particles of defined size and distribution are released from the surface and released into the environment under stress (the type and height of applied energy).

Samples are aged, weathered, or otherwise conditioned to simulate the entire life cycle.

2 規範的参照
次のファイルは、このドキュメントの要件の一部またはすべてを構成する方法でテキスト内で参照されています。. 日付の付いた参照については, 引用されたバージョンのみが適用されます. 日付のない参考文献については, リファレンスの新しいバージョン (改訂も含めて) 当てはまる.

ISO 9276-1, Representation of results of particle size analysis – 一部 1: Graphical representation

ISO/TS 80004-1, nanotechnology – 語彙 – 一部 1: Core terms

ISO/TS 80004-2, nanotechnology – 語彙 – 一部 2: Nano-objects

ISO 21683-2019 “塗料からのナノオブジェクトの放出, 顔料と充填剤を決定するために実験的にシミュレートされたワニスと着色プラスチック”

3 用語と定義
この文書の目的のために, the terms and definitions given in ISO/TS 80004-1, ISO/TS 80004-2 および次の記事が適用されます.

3.1 General terms and definitions

3.1.1 Aerosols

A system of solid or liquid particles suspended in a gas

[ソース: ISO 15900:2009, 2.1]

3.1.2 ナノメートルスケール

The length ranges from about 1 nmから 100 nm

注記 1: Properties that are not extrapolated from larger sizes are mainly represented in this length range.

[ソース: ISO/TS 80004-1:2015, 2.1]

3.1.3 Nanoparticles

For nanoobjects (3.1.4), all external dimensions are at the nanoscale (3.1.2), where the length of the longest and shortest axis of the nanoobject is not significantly different

注記 1: If the size difference is large (usually more than 3x), terms such as nanofibers or nanoplates may be superior to the term nanoparticles.

[ソース: ISO/TS 80004-2:2015, 4.4]

ISO 21683-2019 “塗料からのナノオブジェクトの放出, 顔料と充填剤を決定するために実験的にシミュレートされたワニスと着色プラスチック”

3.1.4 ナノオブジェクト

Discrete materials with one, two or three external dimensions at the nanoscale (3.1.2)

注記 1: The second and third external dimensions are orthogonal to the first dimension and to each other.

[ソース: ISO/TS 80004-1:2015, 2.5]

3.1.5 ペイント

A tinted coating material, 下地に塗布した場合, 保護効果のある不透明な乾燥フィルムを形成します。, decorative or specific technical properties

[ソース: ISO 4618:2014, 2.184]

3.1.6 Equivalent spherical diameter x

The diameter of the sphere has the same physical properties as the particles being measured

注記 1: 例えば, the physical properties are the same as the sedimentation rate or the displacement volume or projection area of the electrolyte solution under the microscope.

注記 2: The physical properties referred to by the equivalent diameter should be expressed using appropriate subscripts, such as x S for the equivalent surface area diameter or xV for the equivalent volume diameter.

[ソース: ISO 26824:2013, 1.6]

ISO 21683-2019 “塗料からのナノオブジェクトの放出, 顔料と充填剤を決定するために実験的にシミュレートされたワニスと着色プラスチック”

3.1.7 粒度分布. PSD

The cumulative distribution of material fractions less than a given particle size (size too small), expressed by the distribution density of material fractions in an equivalent spherical diameter or other linear size or size class divided by the width of the class

注記 1: Particle size distribution is described in ISO 9276-1.

3.1.8 Condensed particle counter

Instruments for measuring aerosol particle number concentrations (3.1.1)

注記 1: The particle size detected is usually less than a few hundred nanometers and larger than a few nanometers.

注記 2: CPC is a possible detector for use with DEMC.

注記 3: ある場合には, a condensed particle counter may be called a condensed matter nucleus counter (CNC).

[ソース: ISO 15900:2009, 2.5]

3.1.9 Differential electromobility classifier

A classifier capable of selecting aerosol (3.1.1) particles based on electromobility and passing them to the outlet

ISO 21683-2019 “塗料からのナノオブジェクトの放出, 顔料と充填剤を決定するために実験的にシミュレートされたワニスと着色プラスチック”

注記 1: DEMC classifies aerosol particle sizes by balancing the electrical power on each particle with its aerodynamic resistance in an electric field. Classified particles fall within a narrow range of electromobility determined by the operating conditions and physical size of the DEMC, while they can have different sizes due to the amount of charge they have.

[ソース: ISO 15900:2009, 2.7]

3.1.10 Differential mobility analysis system DMAS

System for measuring sub-micron aerosol (3.1.1) 粒度分布, consisting of DEMC, flow meter, particle detector, interconnecting pipe, computer and suitable software

[ソース: ISO 15900:2009, 2.8]

3.2 Specific terms and definitions

3.2.1 Particle release in paints, ワニスとプラスチック

Due to mechanical stress, materials are transferred from paints, varnishes and plastics to liquids or gases

3.2.2 Particle number Release n

The total number of particles within a specified size range that are released from the specimen due to mechanical stress

3.2.3 The number of particles in a specific area releases nA

Particle number release (3.2.2), divided by the stressed surface area of the specimen

3.2.4 Mass release by particle number

Number of particles released (3.2.2), divided by the mass of material removed

ISO 21683-2019 “塗料からのナノオブジェクトの放出, 顔料と充填剤を決定するために実験的にシミュレートされたワニスと着色プラスチック”

3.2.5 Total volume flow

Volume flow, which absorbs all air transport emissions at the particle source and transfers them

3.2.6 Particle number concentration nV

Number of particles per volume of air

3.2.7 Process concentration

Particle number concentration (3.2.6), total volume flow rate due to mechanical stress on the specimen (3.2.5), and particle number release (3.2.2)

3.2.8 Measuring concentration

The particle number concentration (3.2.6) is calibrated by a specified process concentration dilution (3.2.7) to establish better conditions for aerosol analysis

3.2.9 Concentration of model room

Particle number concentration (3.2.6), which results from the release of particle number in a specific area under better mixing conditions at a specified room height (3.2.3)

注記 1: Intermodel concentrations are independent of the selected test conditions and represent reference concentrations for actual particle number concentrations (例えば, particle pollution in a laboratory) when the intermodel heights are carefully selected.

ISO 21683-2019 “塗料からのナノオブジェクトの放出, 顔料と充填剤を決定するために実験的にシミュレートされたワニスと着色プラスチック”

標準情報部分のみ公開. 完全なコンテンツを表示するには, 公式チャネルを通じて標準を購入する必要があります.