Preparation of steel substrates before application of paints and related products—Surface roughness characteristics of blast-cleaned steel substrates—Part 2:Method for the grading of
1 Scope
This part of GB/T 13288 describes a visual and tactile method for assessing the grade of the profile that has been produced by one of the abrasive blast-cleaning procedures described in ISO 8504-2.
The method uses ISO surface profile comparators for assessing, on site, the roughness of surfaces before the application of paint or other protective treatments.
Note: Where appropriate, ISO surface profile comparators may be used for assessing the roughness profile of other abrasive blast-cleaned substrates and, in addition, their use is not restricted solely to surfaces that are to be painted.
The method is applicable to steel surfaces that have been blast-cleaned by use of either shot abrasives or grit abrasives but is only applicable for grades Sa21/2 and Sa3 of ISO 8501-1 when the entire surface under test shows an overall blast-cleaned appearance.
It is applicable to surfaces that have been cleaned with either metallic or non-metallic abrasives.
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the normative document (including any amendments) applies.
ISO 4618,Paints and Varnishes - Vocabulary.
ISO 8501-1 Preparation of Steel Substrates before Application of Paints And Related Products - Visual Assessment Of Surface Cleanliness - Part 1: Rust Grades And Preparation Grades of Uncoated Steel Substrates And Of Steel Substrates After Overall Removal of Previous Coatings.
ISO 8503-1 Preparation of Steel Substrates Before Application of Paints and Related Products - Surface Roughness Characteristics of Blast-cleaned Steel Substrates - Part 1: Specifications and Definitions for ISO Surface Profile Comparators for the Assessment of Abrasive Blast-Cleaned Surfaces.
ISO8503-3 Preparation of Steel Substrates Before Application of Paints And Related Products - Visual Assessment Of Surface Cleanliness - Part 3: Method For The Calibration Of ISO Surface Profile Comparators And For The Determination Of Surface Profile - Focusing Microscope Procedure.
ISO8503-4 Preparation of Steel Substrates Before Application of Paints And Related Products - Visual Assessment Of Surface Cleanliness - Part 4 : Method For The Calibration Of ISO Surface Profile Comparators And For The Determination Of Surface Profile - Stylus Instrument Procedure.
ISO 8504-2 Preparation of Steel Substrates before Application Of Paints And Related Products - Surface Preparation Methods - Part 2: Abrasive Blast-Cleaning)
Foreword I
Introduction III
1 Scope
2 Normative References
3 Terms and Definitions
4 Principle
5 Apparatus
6 Maintenance and Re-calibration of Comparators
7 Procedure
8 Test Report
GB/T 13288.2-2011 引用如下标准：
* ISO 4618,Paints and Varnishes - Vocabulary. * ISO 8501-1 Preparation of Steel Substrates before Application of Paints And Related Products - Visual Assessment Of Surface Cleanliness - Part 1: Rust Grades And Preparation Grades of Uncoated Steel Substrates And Of Steel Substrates After Overall Removal of Previous Coatings. * ISO 8503-1 Preparation of Steel Substrates Before Application of Paints and Related Products - Surface Roughness Characteristics of Blast-cleaned Steel Substrates - Part 1: Specifications and Definitions for ISO Surface Profile Comparators for the Assessment of Abrasive Blast-Cleaned Surfaces. * ISO8503-3 Preparation of Steel Substrates Before Application of Paints And Related Products - Visual Assessment Of Surface Cleanliness - Part 3: Method For The Calibration Of ISO Surface Profile Comparators And For The Determination Of Surface Profile - Focusing Microscope Procedure. * ISO8503-4 Preparation of Steel Substrates Before Application of Paints And Related Products - Visual Assessment Of Surface Cleanliness - Part 4 : Method For The Calibration Of ISO Surface Profile Comparators And For The Determination Of Surface Profile - Stylus Instrument Procedure. * ISO 8504-2 Preparation of Steel Substrates before Application Of Paints And Related Products - Surface Preparation Methods - Part 2: Abrasive Blast-Cleaning)
