Передмова
ISO (Міжнародна організація стандартизації) є глобальною федерацією національних органів стандартизації (Органи-члени ISO). Розробка міжнародних стандартів зазвичай здійснюється через технічні комітети ISO. Кожна група членів, зацікавлена ​​в темі, з якої було створено технічний комітет, має право бути представленою в комітеті. Міжнародні організації, уряди та неурядові організації, які співпрацюють з ISO, також беруть участь у цих зусиллях. ISO тісно співпрацює з Міжнародною електротехнічною комісією (IEC) з усіх питань електротехнічного нормування.

частина 1 Директиви ISO/IEC описує процедури, використані для розробки цього документу, а також ті, які використовуються для подальшого обслуговування. Зокрема, слід звернути увагу на різні критерії затвердження, необхідні для різних типів документів ISO. Цей документ складено відповідно до редакційних правил ч 2 Директиви ISO/IEC (див. iso.org/directives).

Зверніть увагу, що деякі елементи цього документа можуть бути об’єктом патентних прав. ISO не несе відповідальності за ідентифікацію будь-яких або всіх таких патентних прав. Details of any patent rights identified during the development of the document will be in the profile and/or in the list of ISO patent claims received (див. iso.org/patents).

ISO 2808-2019 “Визначення товщини фарби для кольору та лаку”

Any trade names used in this document are provided as information for the convenience of users and do not constitute an endorsement thereof.

Добровільний переклад, related standards and conformity assessment related ISO specific terminology and express the meaning of and the ISO in the technical barriers to trade (TBT) adhere to the principle of the world trade organization (WTO) information, please see the iso.org/iso/foreword.html.

This document is prepared by Technical Committee ISO/TC 35, Лакофарбові матеріали, SC 9, Загальні методи випробування лакофарбових матеріалів.

The fifth edition eliminates and replaces the fourth edition (ISO 2808:2007), який був технічно доопрацьований. The main changes from the previous edition are as follows:

Terms and definitions have been updated to ISO 4618 and ISO/IEC Guide 99;

— Revised principles;

— Add a white light interferometer as method 6C;

— Added the terahertz method as method 11;

– The existing methods have adapted to the current situation of metrology;

— Revised characteristics of methods and procedures in Appendix A;

ISO 2808-2019 “Визначення товщини фарби для кольору та лаку”

– Information on the accuracy of each method in Appendix A has been adjusted to current standards;

— Updated references to test criteria and structural criteria in Appendix A;

— The original Article 7 measurement of film thickness on rough surfaces has been moved to Appendix B;

– Added Appendix C on factors affecting measurement accuracy when measuring wood.

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

ISO 2808-2019 “Визначення товщини фарби для кольору та лаку”

вступ
This document consistently enumerates the individual coatings applied in multilayer systems by referring to the first coating applied on the substrate as coating 1. Some other criteria refer to individual test methods, listed in reverse order.

1 Сфера застосування
This document describes the method used to measure the thickness of the coating applied to the substrate. The method used to determine the thickness of wet film, dry film, and uncured powder layer is described.

For each method described, this document provides an overview of the field of application, existing standards, and precision.

Information for measuring the thickness of the film on rough surfaces is given in Appendix B.

Information on measuring the thickness of wooden substrate films is given in Appendix C.

ISO 2808-2019 “Визначення товщини фарби для кольору та лаку”

2 Нормативно-довідкові документи
Коли в тексті є посилання на такі документи, частина або весь їх вміст становить вимоги цього документа. Для датованих посилань, застосовується лише цитована версія. Для недатованих цитат, нова версія цитатного документа (включаючи будь-які зміни) застосовується.

ISO 3611, Geometric Product specification (GPS) — Dimensional measuring devices: micrometers for external measurements — Design and metrological characteristics

ISO 4618, Лакофарбові матеріали – Терміни та визначення

ISO 8503-1, Preparation of steel substrates before painting and related products-Surface roughness characteristics of sandblasted steel substrates — частина 1: Specification and definition of an ISO surface roughness comparator for evaluation of sandblasted surfaces

3 Терміни та визначення
Для цілей цього документа, терміни та визначення, наведені в ISO 4618 і застосовується наступне.

ISO та IEC підтримують термінологічні бази даних для стандартизації за такими адресами:

– Платформа онлайн-перегляду ISO: iso.org/obp

– Електропедія IEC: доступно на electropedia.org/

3.1 Film thickness

The distance between the film surface and the substrate surface

ISO 2808-2019 “Визначення товщини фарби для кольору та лаку”

3.2 Wet film thickness

The thickness of the wet coating material just applied, measured immediately after application

3.3 Товщина сухої плівки

The thickness of the coating left on the surface after the coating is hardened

3.4 Uncured powder layer thickness

The thickness of the powder coating material just applied, measured immediately after coating and before baking

3.5 Related surface area

A part of an object that is or will be covered by a coating and that the coating is required for its maintainability and/or appearance

Примітка до вступу 1: The measurement of this attribute is only used for the extended evaluation of film thickness measurement; See article 7, k) and l).

ISO 2808-2019 “Визначення товщини фарби для кольору та лаку”

3.6 Test Area

A representative part of the relevant surface area, within which an agreed number of single measurements are taken as spot checks

Примітка до вступу 1: The measurement of this attribute is only used for the extended evaluation of film thickness measurement; See article 7, k) and l).

3.7 Measurement area

The area where a single measurement is made

Примітка до вступу 1: The measurement of this attribute is only used for the extended evaluation of film thickness measurement; See article 7, k) and l).

3.8 Minimum local film thickness

The lowest value of the local film thickness found in the relevant surface area of a particular specimen

Примітка до вступу 1: The measurement of this attribute is only used for the extended evaluation of film thickness measurement; See article 7, k) and l).

ISO 2808-2019 “Визначення товщини фарби для кольору та лаку”

3.9 Maximum local film thickness

The maximum value of the local film thickness found in the relevant surface area of a particular specimen

Примітка до вступу 1: The measurement of this attribute is only used for the extended evaluation of film thickness measurement; See article 7, k) and l).

3.10 Average film thickness

Arithmetic mean of all individual dry film thickness (3.3) in the test area or weight determination of thickness

Примітка до вступу 1: The measurement of this attribute is only used for the extended evaluation of film thickness measurement; See article 7, k) and l).

3.11 Калібрування

Under specific conditions, first step, the operation of establishing a relationship between the quantity value provided by the measurement standard with measurement uncertainty and the corresponding indication with relevant measurement uncertainty, second step, using this information to establish a relationship to obtain the measurement result of the indication

Примітка 1: Calibration can be expressed in statements, calibration functions, calibration plots, calibration curves, or calibration tables. В деяких випадках, it may include an additive or multiplicative correction for an indication with associated measurement uncertainty.

Примітка 2: Calibration should not be confused with adjustment of the measurement system, often erroneously referred to as “self-calibration”, nor with calibration verification.

Примітка до вступу 3: Типово, the first step in the above definition alone is considered calibration.

[Джерело: ISO/IEC Guide 99:2007, 2.39]

ISO 2808-2019 “Визначення товщини фарби для кольору та лаку”

3.12 Confirmation

Provide objective evidence that a given project meets specific requirements

приклад 1: Confirm that the required given reference material is uniform for the relevant quantity values and measurement procedures until the mass of the measured part is 10 мг.

приклад 2: Confirm that the performance characteristics or legal requirements of the measurement system are met.

приклад 3: Confirm that the target measurement uncertainty can be met.

Примітка 1: When applicable, measurement uncertainty should be considered.

Пункт Примітка 2: Items can be, наприклад, processes, measurement procedures, матеріалів, compounds, or measurement systems.

Примітка 3: Stated requirements can be, наприклад, meeting the manufacturer’s specifications.

Примітка до вступу 4: Statutory metrological verification as defined in VIML, and conformity assessment in general, involves the inspection and marking of measurement systems and/or the issuance of verification certificates.

Примітка 5: Validation should not be confused with calibration. Not every verification is a verification.

Примітка 6: In chemistry, verifying the identity of the entity or activity involved requires describing the structure or nature of the entity or activity.

[Джерело: ISO/IEC Guide 99:2007, 2.44]

ISO 2808-2019 “Визначення товщини фарби для кольору та лаку”

3.13 Reference R M

The material, sufficiently homogeneous and stable with respect to the specified properties, has been determined to be suitable for its intended use in measurement or inspection of nominal properties

Примітка до вступу 1: Examination of nominal attributes provides nominal attribute values and associated uncertainty. This uncertainty is not measurement uncertainty.

Примітка 2: REFERENCE MATERIALS with or without specified quantity values can be used for measurement accuracy control, while only REFERENCE materials with specified quantity values can be used for calibration or measurement trueness control.

Примітка 3: “Довідкові матеріали” include materials embodying quantitative and nominal characteristics.

приклад 1: Sample reference with quantity:

a) water of specified purity whose dynamic viscosity is used to calibrate the viscometer;

b) Human serum without a quantitative value for the mass concentration of intrinsic cholesterol is used only as a control substance for measurement accuracy;

в) Fish tissue containing the specified mass fraction of dioxins to be used as calibrators.

приклад 2: Example of reference material embodying nominal characteristics:

a) a color card showing one or more specific colors;

b) a DNA compound containing a specific nucleotide sequence;

в) Urine containing 19-androstenedione.

Примітка до вступу 4: Reference materials are sometimes incorporated into specially manufactured equipment.

ISO 2808-2019 “Визначення товщини фарби для кольору та лаку”

приклад 3: A substance with a known triple point in a triple point cell.

приклад 4: Glass with known optical density in a transmission filter holder.

приклад 5: A uniform sized sphere mounted on a microscope slide.

Entry NOTE 5: Some REFERENCE MATERIALS specify quantities that are metrologically traceable to units of measurement outside the unit system. Such material includes vaccines designated as international units (IU) by the World Health Organization.

Примітка 6: In a given measurement, a given reference material can only be used for calibration or quality assurance.

Примітка до вступу 7: The specification of the reference material shall include its material traceability, indicating its origin and processing (Accred. Qual. Assur.:2006).

Примітка до вступу 8: ISO/REMCO has a similar definition but uses the term “measurement process” to mean “inspection” (ISO 15189:2007, 3.4), which covers the measurement of quantities and the inspection of nominal attributes.

Примітка до вступу 9: Reference materials can be coating thickness standards or gaskets. A portion of the test sample can be used as a work-specific thickness standard if the contract parties agree.

[Джерело: ISO/IEC Guide 99:2007, 5.13, змінений – вхідна примітка 9 додано.]

ISO 2808-2019 “Визначення товщини фарби для кольору та лаку”

3.14 Adjustment

Adjustment of measurement system

A set of operations performed on a measuring system so that it provides a prescribed indication corresponding to a given value to be measured

Примітка 1: The types of adjustment of the measurement system include zero adjustment, offset adjustment and span adjustment (sometimes called gain adjustment) of the measurement system.

Примітка 2: Adjustment of a measurement system should not be confused with calibration, which is a prerequisite for adjustment.

Примітка 3: After the measurement system is adjusted, it is usually necessary to re-calibrate the measurement system.

Примітка 4: Most digital measuring instruments can be adjusted on a thickness standard or gasket, where the thickness of the coating or gasket is known.

[Джерело: ISO/IEC Guide 99:2007, 3.11, змінений — Примітка 4 added, “adjustment” used as the first preferred term.]

ISO 2808-2019 “Визначення товщини фарби для кольору та лаку”

3.15 Точність

Accuracy of measurement

The degree of agreement between the measured value and the true quantity value

Зауваження 1: The concept of “measurement accuracy” is not a quantity and does not give a numerical quantity value. When smaller measurement error is provided, the measurement is said to be more accurate.

Примітка 2: Термін “precision of measurement” should not be used to measure truthfulness and the term “precision of measurement” should not be used to “precision of measurement”, проте, this is related to both concepts.

Примітка до вступу 3: “Measurement precision” is sometimes understood to be attributed to the degree of consistent proximity between the measurements being measured.

[Джерело: ISO/IEC Guide 99:2007, 2.13, змінений — “точність” is used as a preferred term.]

У відкритому доступі лише стандартна інформаційна складова. Щоб переглянути повний вміст, you need to purchase the standard through a formal channel.