הקדמה
ISO (הארגון הבינלאומי לתקינה) היא פדרציה עולמית של גופי תקינה לאומיים (גופים חברי ISO). פיתוח תקנים בינלאומיים מתבצע בדרך כלל באמצעות ועדות טכניות של ISO. Each member group interested in the subject on which a technical committee has been established is entitled to be represented on the committee. ארגונים בינלאומיים, governments and ngos that liaise with ISO are also involved in this effort. ISO עובד בשיתוף פעולה הדוק עם הנציבות האלקטרוטכנית הבינלאומית (חברת החשמל) בכל נושא התקינה האלקטרונית.

חֵלֶק 1 of the ISO/IEC Directive describes the procedures used to develop this document as well as those used for further maintenance. באופן מיוחד, יש לשים לב לקריטריוני האישור השונים הנדרשים עבור סוגים שונים של מסמכי ISO. מסמך זה נוסח בהתאם לכללי העריכה של חלק 2 של הוראת ISO/IEC (ראה iso.org/directives).

Please note that certain elements of this document may be the subject of patent rights. ISO אינה אחראית לזיהוי כל זכויות פטנט כאלה או כולן. 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 (ראה iso.org/patents).

ISO 2808-2019 “קביעת עובי שכבת הצבע לצבע ולכה”

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

Voluntary interpretation, 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) מֵידָע, please see the iso.org/iso/foreword.html.

This document is prepared by Technical Committee ISO/TC 35, צבעים ולכות, SC 9, שיטות בדיקה כלליות לצבעים ולכות.

The fifth edition eliminates and replaces the fourth edition (ISO 2808:2007), which has been technically revised. 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 “קביעת עובי שכבת הצבע לצבע ולכה”

– 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 “קביעת עובי שכבת הצבע לצבע ולכה”

מבוא
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 היקף היישום
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 “קביעת עובי שכבת הצבע לצבע ולכה”

2 מסמכי התייחסות נורמטיביים
When the following documents are referred to in the text, part or all of their contents constitute the requirements of this document. להפניות מתוארכות, רק הגרסה המצוטטת חלה. לציטוטים ללא תאריך, the new version of the citation document (כולל כל תיקונים) חל.

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

ISO 4618, צבעים ולכות – מונחים והגדרות

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

3 מונחים והגדרות
למטרות מסמך זה, המונחים וההגדרות הניתנים ב-ISO 4618 ויחולו הדברים הבאים.

ISO וחברת החשמל מחזיקות מאגרי מינוח לתקינה בכתובות הבאות:

– פלטפורמת גלישה מקוונת ISO: iso.org/obp

– חברת החשמל אלקטרופדיה: זמין באתר electropedia.org/

3.1 Film thickness

The distance between the film surface and the substrate surface

ISO 2808-2019 “קביעת עובי שכבת הצבע לצבע ולכה”

3.2 Wet film thickness

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

3.3 Dry film thickness

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

Entry Note 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 “קביעת עובי שכבת הצבע לצבע ולכה”

3.6 אזור בדיקה

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

Entry Note 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

Entry Note 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

Entry Note 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 “קביעת עובי שכבת הצבע לצבע ולכה”

3.9 Maximum local film thickness

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

Entry Note 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

Entry Note 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 כִּיוּל

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

הערה 1: Calibration can be expressed in statements, פונקציות כיול, calibration plots, calibration curves, or calibration tables. במקרים מסוימים, הוא עשוי לכלול תיקון תוסף או כפל עבור אינדיקציה עם אי ודאות מדידה קשורה.

הערה 2: Calibration should not be confused with adjustment of the measurement system, לעתים קרובות מכונה בטעות “כיול עצמי”, וגם לא עם אימות כיול.

Entry Note 3: בדרך כלל, the first step in the above definition alone is considered calibration.

[מָקוֹר: מדריך ISO/IEC 99:2007, 2.39]

ISO 2808-2019 “קביעת עובי שכבת הצבע לצבע ולכה”

3.12 Confirmation

Provide objective evidence that a given project meets specific requirements

דוגמא 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 מ"ג.

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

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

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

Item Note 2: Items can be, לדוגמה, processes, measurement procedures, materials, compounds, or measurement systems.

הערה 3: Stated requirements can be, לדוגמה, meeting the manufacturer’s specifications.

Entry Note 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.

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

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

[מָקוֹר: מדריך ISO/IEC 99:2007, 2.44]

ISO 2808-2019 “קביעת עובי שכבת הצבע לצבע ולכה”

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

Entry Note 1: Examination of nominal attributes provides nominal attribute values and associated uncertainty. This uncertainty is not measurement uncertainty.

הערה 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.

הערה 3: “Reference materials” include materials embodying quantitative and nominal characteristics.

דוגמא 1: Sample reference with quantity:

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

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

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

דוגמא 2: Example of reference material embodying nominal characteristics:

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

ב) a DNA compound containing a specific nucleotide sequence;

ג) Urine containing 19-androstenedione.

Entry Note 4: Reference materials are sometimes incorporated into specially manufactured equipment.

ISO 2808-2019 “קביעת עובי שכבת הצבע לצבע ולכה”

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

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

דוגמא 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.

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

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

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

Entry Note 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.

[מָקוֹר: מדריך ISO/IEC 99:2007, 5.13, שונה – הערת כניסה 9 added.]

ISO 2808-2019 “קביעת עובי שכבת הצבע לצבע ולכה”

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

הערה 1: The types of adjustment of the measurement system include zero adjustment, offset adjustment and span adjustment (נקרא לפעמים התאמת רווח) of the measurement system.

הערה 2: אין לבלבל בין התאמה של מערכת מדידה לבין כיול, שהוא תנאי מוקדם להתאמה.

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

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

[מָקוֹר: מדריך ISO/IEC 99:2007, 3.11, שונה — הערה 4 added, “התאמה” used as the first preferred term.]

ISO 2808-2019 “קביעת עובי שכבת הצבע לצבע ולכה”

3.15 דיוק

Accuracy of measurement

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

הֶעָרָה 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.

הערה 2: התנאי “precision of measurement” should not be used to measure truthfulness and the term “precision of measurement” should not be used to “precision of measurement”, למרות זאת, this is related to both concepts.

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

[מָקוֹר: מדריך ISO/IEC 99:2007, 2.13, שונה — “דיוק” is used as a preferred term.]

רק רכיב המידע הסטנדרטי זמין לציבור. לצפייה בתוכן המלא, you need to purchase the standard through a formal channel.