ISO 6504-1:2019 PDF

Name: ISO 6504-1:2019 — Paints and varnishes — Determination of hiding power — Part 1: Kubelka-Munk method for white and light-coloured paints
SKU: ISO 6504-1:2019
Price: 25 EUR
Availability: InStock

Paints and varnishes — Determination of hiding power — Part 1: Kubelka-Munk method for white and light-coloured paints

Название (английский):

ISO 6504-1:2019

Paints and varnishes — Determination of hiding power — Part 1: Kubelka-Munk method for white and light-coloured paints

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 36
Дата публикации:: 10 мая 2019 г.
Издание:: ISO IS 6504 edition 2 version 1
ICS:: 87.040

Тип поставки:

Full version540 €Read online 24h10 €Read online 72h15 €

Язык документа:

ruen

Срок поставки:6 раб. дн. (перевод)

Цена:540 €

Описание (английский):

This document specifies a method for determining the hiding power (spreading rate necessary to give a hiding power of 98 %) of white or light-coloured paints. It is applicable to paint films having the tri-stimulus value of Y ≥ 70 and hiding power > 80 %. It is not applicable to fluorescent or metallic paints.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview - ISO 6504-1:2019 (Kubelka‑Munk method for white and light‑coloured paints)

ISO 6504-1:2019 specifies a standardized laboratory method to determine the hiding power (the spreading rate required to give 98% hiding) of white and light‑coloured paints using the Kubelka‑Munk (K‑M) optical model. The procedure applies to paint films with a CIE tristimulus value Y ≥ 70 and hiding power > 80%. It is not applicable to fluorescent or metallic paints. The method converts measured reflectance values into scattering and absorption coefficients and derives the wet film thickness that corresponds to 98% opacity (hiding).

Key technical topics and requirements

Principle: Uses the Kubelka‑Munk equations to relate film reflectance to scattering (S) and absorption (a, b) coefficients and to predict hiding at a target reflectance ratio (Rfilm on black / R∞ ≈ 0.98).

Measurements required:

Reflectance of paint film on a black substrate (R_B).
Reflectivity (R∞) - reflectance of an effectively infinitely thick film, typically measured on a white substrate.
CIE tristimulus Y values (Y/100 used as reflectance input).

Apparatus and materials:

Substrates: polished black glass or polyester film and white/grey charts (ceramic or glass alternative).
Film applicators (bar or wire‑wound) producing uniform wet films (typical 40–150 µm).
Photoelectric reflectometer with spectral response approximating D65 × y(λ), accuracy ~0.1% full scale; 8°/diffuse geometry recommended in disputes.
Templates and controlled application procedure.

Calculations and output:

Compute K‑M parameters (a, b) and St product from measured reflectances.
Derive scattering coefficient S (S = St / t) and calculate hiding power V (V = 1000 / t for the film thickness t that yields 98% hiding).

Limitations & precision: Not suitable for fluorescent or metallic paints; standard includes repeatability and reproducibility guidance and example graphs/tables (Annexes A–C) to simplify computation.

Practical applications and who uses this standard

Quality control and batch release testing in paint and coatings manufacturing

R&D and formulation optimization to compare pigment loading and extender efficiency

Third‑party testing laboratories and certification bodies verifying opacity claims

Specifiers, architects and procurement teams assessing coating performance

Suppliers evaluating pigment/binder tradeoffs for cost vs. hiding efficiency

Benefits include objective, reproducible hiding‑power values, reduced extrapolation compared with full spreading‑rate tests, and direct linkage to optical parameters used in color/appearance engineering.

Related standards

Normative and complementary references used in ISO 6504-1:2019:

ISO 6504 series (other parts, e.g., ISO 6504‑3 referenced)

ISO 1513 - sample preparation

ISO 2808 - film thickness determination

ISO 2811‑1 - density (pycnometer)

ISO 3251 - non‑volatile content

ISO 4618 - terms and definitions

ISO 15528 - sampling

Keywords: ISO 6504-1:2019, hiding power, Kubelka‑Munk, paints and varnishes, reflectance measurement, scattering coefficient, paint opacity, white paints, light‑coloured paints.

ISO 6504-1:2019 PDF

Abstract

Похожие стандарты

Overview - ISO 6504-1:2019 (Kubelka‑Munk method for white and light‑coloured paints)

Key technical topics and requirements

Practical applications and who uses this standard

Related standards

Технические детали

SIST EN ISO 6504-3:2020

Paints and varnishes - Determination of hiding power - Part 3: Determination of hiding power of paints for ma…

SIST EN ISO 15138:2018

Petroleum and natural gas industries - Offshore production installations - Heating, ventilation and air-condi…

SIST EN ISO 28080:2021

Hardmetals - Abrasion tests for hardmetals (ISO 28080:2021)

SIST EN ISO 2811-1:2023

Paints and varnishes - Determination of density - Part 1: Pycnometer method (ISO 2811-1:2023)

SIST EN ISO 3233-2:2019

Paints and varnishes - Determination of the percentage volume of non-volatile matter - Part 2: Method using t…

SIST EN ISO 4618:2023

Paints and varnishes - Vocabulary (ISO 4618:2023)

BS EN ISO 15528:2020

Paints, varnishes and raw materials for paints and varnishes. Sampling.