Preparation of steel substrates before application of paints and related products-Surface roughness characteristics of blast-cleaned substrates - Part 1: Specifications and definitions for ISO surface profile comparators for the assessment of abrasive bla
Some standard content:
ICS25.220.10
National Standard of the People's Republic of China
GB/T13288.1—2008/ISO8503-1:1988 Preparation of steel substrates before application of paints and related products- Surface roughness characteristics of blast-cleaned suhstrates-Part 1:
Technical requirements and definitions for ISO surtace profile comparators forthe assessment of abrasive blast-cleaned surfaces(ISO 8503-1: 1988.IDT)
2008-04-01 Issued
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China Standardization Administration of China
2008-09-01 Implementation
GB/T 13288.1--2008/IS0 8503-1:1988B/13288 "Surface treatment of steel before coating - Surface roughness characteristics of steel after blast cleaning" is divided into the following parts: Part 1: Technical requirements and definitions of ISO abrasive comparison specimens for evaluating the surface roughness of steel after blast cleaning, Part 2: Determination of surface roughness grade of steel after abrasive blast cleaning - Comparison specimen method: Part 3: Calibration of ISO surface roughness comparison specimens and determination of surface roughness accuracy - Microscope focusing method: Stylus method
Part A: Calibration of ISO surface roughness comparison specimens and determination of surface relative roughness - Part 5: Replica determination of surface relative roughness. This part is Part 1 of GB, T13288. This part is equivalent to 1S08503-1:1988 (Surface treatment of steel before coating - Certification of steel surface roughness after blast cleaning - Part 1: Technical requirements and definitions for ISO surface roughness comparison specimens for assessing the surface roughness of steel after blast cleaning) (Ying'an Edition)
This part is equivalent to 1S08503-1:1988. For the purpose of use, this part has made the following editorial changes: "This International Standard" is changed to "this part", the suffix "" is used instead of the comma used as a sub-statement, "", and the reference book is added as an informative appendix in addition to the foreword and introduction of the international standard. Appendix A and Appendix B of this part are both informative appendices. This part was proposed by China Shipbuilding Industry Corporation. This part is under the jurisdiction of the National Technical Committee for Standardization of Coatings and Materials - Metal Surface Treatment Before Painting and Painting Process Sub-Technical Committee. Drafting units of this part: China Shipbuilding Industry Tenth Research Institute, China Shipbuilding Industry Comprehensive Technology and Economic Research Institute, Shandong Kaitai Metal Abrasive Co., Ltd.
Main drafters of this part: Liu Bingyang, Wei Yanyuan, Bo Jianhua, Liu Ruwei, Zhang Laibin, Jiang Chaoxi. 1 Scope
GB/T13288.1—2008/ISO8503-1:1988 Surface treatment of steel before coating
Surface roughness characteristics of steel after blast cleaning Part 1:
ISO surface roughness ratio for evaluating the surface roughness of steel after blast cleaning
Technical requirements and definitions for comparison blocks
This part of GB/T 13288 is a part of the standard for evaluating the relative roughness of steel surfaces after abrasive blasting. This part specifies the technical requirements for ISO surface roughness comparison blocks for visual and tactile comparison of the relative roughness of steel surfaces after abrasive blasting. ISO surface roughness comparison blocks are used to evaluate the surface roughness of steel surfaces after abrasive blasting before coating. Note: These special comparison blocks can be used to measure the roughness characteristics of other substrates after abrasive blasting and are not limited to measuring the surface before coating. This part of GB/T 13288 also contains the definitions of terms in other parts of GB/T 13288. 2 Specifications Referenced documents
The clauses in the following documents become clauses of this part through reference in this part of GB/T 13288. For any dated referenced parent document, all subsequent amendments (excluding errors) or revisions are not applicable to this part. However, parties to an agreement based on this part are encouraged to investigate whether the latest version of this document can be used. For any undated referenced document, the latest version applies to this part.
ISO2632-2 Roughness comparison sample: Part 2: Electro-ablation, shot peening and sand blasting. Grinding [SO4287-1 Surface roughness terminology Part 1: Surfaces and their parameters ISO4618 Vocabulary of paints and varnishes
[SO ISO 8501-1:19882 Surface preparation before coating - Visual assessment of surface clarity - Part 1: Rust grades and treatment grades of uncoated steel surfaces and of steel surfaces completely free of existing coatings ISO 8503-7 Surface preparation before coating - Roughness characteristics of steel surfaces after blast cleaning - Part 2: Method for determination of surface roughness grades of steel surfaces after abrasive blast cleaning - Comparative block method ISO 8503-3 Surface preparation before coating - Roughness characteristics of steel surfaces after blast cleaning - Method for determination of surface roughness by comparison of specimens and microscopic focusing method Part 3: ISO 8503-4 Surface preparation before coating - Roughness characteristics of steel surfaces after blast cleaning - Part 4: Method for determination of surface roughness by comparison of specimens and microscopic focusing method Surface treatment Surface treatment methods Part 2: Abrasive blast cleaning 1508504-2
1GBT3505-2000 is equivalent to 1S04287:1997, 1S04287:1997 replaces 1S04287-1:1984 1S0DIS4287-1:19952) GB8923-1988 is equivalent to IS08501-1:19883
G B13288--1991 is for winter use only ISO8503:1985 GB/T18839.2-2002 is equivalent to ISO8504-2:20004
GB/T13288.1-2008/IS08503-1:19883 Definitions
The following definitions and the definitions established in [ISO4618] apply to this part and other parts of GB/T13288. 3.1
Surface roughness surface profile
The surface profile is generally expressed as the height of the highest peak of the surface relative to the lowest valley. Note: This term is defined in 904287-1 as: "~ A plane number is a real surface of the vertical line". The surface roughness characteristics after blast cleaning are defined in 3.7, 3.8, 3.10-3.12 of [908503-4]. 3.2
ISo surface roughness comparison sample Isosurfaceprofilecomparator is a block consisting of 4 areas, each area represents the reference surface roughness defined in this part. Note: The reference surface roughness is prepared by the parts
.
Test plate coupon
On the metal plate with large etched surface, use the low-noise plate (see Figure 3) that has been specially spray-cleaned as the prototype, and use the positive mold forming method to divide it into 4 areas. 3.4
Surface roughness comparison sample surfaceprofilecomparatar The test plate treated with a specific material quality cleaning method or the test plate with average roughness, Note: This comparison sample is a comparison of the surface roughness and touch quality of the base material after spray cleaning, and can evaluate the surface roughness! ISO/TC57 Surface properties and measurements 2 The term "roughness comparison sample" should be proposed (see 1902632-2) 3.5 Comparison sample for sand blasting cleaning pritcompar Comparison sample for surface roughness after sand blasting cleaning (comparison sample G) 3.6 Comparison sample for shot abrasive blasting shotcomparator Comparison sample for surface roughness after shot metal abrasive blasting cleaning (comparison sample S3.7
Maximum peak-to-valley height (by microscopy) h
The vertical distance between the highest peak and the lowest valley within the scope of microscope observation (see 15085033 Note: force, generally observed with a microscope.
Mean maximum peak-to-velkey height (by microscopy) mean maximum peak-to-velkey height (by microscopy) mean arithmetic mean of not less than 20 h (3.7) measured values. 3.9
Sampling length (as defined in IS0 4287-1) Length of reference line used to confirm irregular changes in roughness of the mismatched surface. 3.10
Maximum peak-to-valley hcight (by stylus) GB/T 13288.1—2008/1S0 8503-1:1988 The maximum peak-to-valley height (hyslylus) of a full sample within an individual sampling length (3.9) when measured by stylus (see ISO 8503-4). Non: R, is defined in ISO 4287-1 as the vertical range between the peak line and the valley bottom line of the sample group 3.11
Average maximum peak-to-valley height (stylus method) inezinmaximunpeak-to-valleyheight (hyslylus) R.
The average value of the maximum valley height R. (3.10) within 5 adjacent individual sampling lengths (3.9). Exchange: R, is sometimes referred to as Rm. R is defined in DN 4768 according to the above definition of scale. 3.12
Grand mean maximum peak-to-valley height (stylus method) grandmean-marimum peak-to-valleyheight(bystylus)R
Multiple (not less than 10)
Primary roughness
Simple valley height (3.11) measured valuesPrimarsprofile
Surface coarseness of steel before blast cleaning
.
Secondary roughness
Secondarypmofile
Surface roughness obtained after blast cleaning on a surface with original roughness3.15
BurrsHadkes
During blast cleaning, the surface of steel is hit by abrasives and produces fine burrs, which are still attached to the steel and sometimes appear high.
Independent beep
Actually higher than all surrounding peaks.
ISO surface roughness comparison
Electromechanical two-jet The surface roughness comparison sample block is flat. The shape and size are shown in Figure 1. When these parts are tested according to the method specified in ISO8503-3 and ISO8503-4, they should fully meet the values given in Table |. The surface treatment level of the comparison sample block should not be lower than the Sa2 level specified in ISO8501-1.
ISO surface roughness comparison sample block should be tested according to the method specified in ISO8503-3 and ISO8503-4. Manufactured by the electrodeposition forming method. The comparison sample is made of a low-profile alloy steel flat plate containing nickel or other grease-resistant metal elements (for example: existing electroforming products). TSO surface roughness comparison samples should be marked:
"1S03.503-1 Reference Comparison Sample G", which means the comparative sample of torsional stability after long-grain abrasive blasting cleaning, \1SDS503-1 Reference Comparison Sample S7, which means the comparative sample of torsional stability after long-grain abrasive blasting cleaning, GB/T 13288.1- 2008/1S0 8503-1: 1988m
Distribution Line
One District City 3 Ten
R5 ~68
ISO surface roughness comparison sample
Unit: whole meter
Allowable error: +0.5mm
Table 1 Nominal values and tolerances of surface roughness of each area of ISO surface roughness comparison sample a) Comparison sample area after sand dense material blasting cleaning
b Comparison sample area after shot abrasive dark blasting cleaning
Nominal value
Nominal value
Tolerance
When the microscope thermal adjustment method is used (see ISO8503-3), the nominal value refers to the nominal value. When the stylus method is used (see ISO8503-4), the nominal value is taken as a reference. Each comparison sample should be accompanied by a calibration certificate indicating the method of determining the surface roughness, the estimated tolerance and the calibrated surface roughness of each area [expressed in micrometers, see Chapter 8).
GB/T 13288.1—2008/IS0 8503-1:1988 Note: Other design structures of comparison samples may also be used, which shall contain an area of roughness and tolerances as specified in this standard. However, such a comparison sample cannot be confirmed as a "[ISO comparison sample], it can be registered according to the roughness specified in [ISO5503-1. 5 Roughness grade range
The roughness grade range shall be divided into "fine", "medium" and "twisted" according to Table 2. Table 2 Roughness grade range
a! Comparison sample for abrasive blast cleaning (G
Medium (G)
Roughness equivalent to and exceeding the nominal value of area 2, but less than the nominal value of area 2, but less than the nominal value of area 3. Roughness equivalent to and exceeding the nominal value of area 3, not To the nominal value of area 4 Shot abrasive blast cleaning comparison sample
Fine (S)
Medium (5)
Coarse (S)
6 Calibration of comparison sample
Roughness equals and exceeds the nominal value of area 1, but does not reach the nominal value of area 2. Roughness equals and exceeds the nominal value of area 2, but does not reach the nominal value of area 3. Roughness equals and exceeds the nominal value of area 3, but does not reach the nominal value of area 4. Determine the relative roughness of the reference surface according to the method specified in [S08503-3 or [S08503-4]. If all the roughness values are within the corresponding nominal values and tolerance ranges specified in Table 1, Within the range, the comparison block shall be considered to have been calibrated. Only the comparison blocks that meet the requirements of the table can be registered according to the contents specified in Chapter 4. Note: In case of disagreement, the calibration method specified in ISO8503-3 shall be used for reconciliation. After calibrating the comparison block using the stylus method (ISO8503-4) or the microscope focusing method (ISO8503-3), the comparison blocks whose surface roughness does not meet the given range in the table shall be scrapped. If the surface cleanliness of the comparison block does not meet the Sa2 or Sa3 level specified in ISO8501-1, the comparison block shall be scrapped. 7 Maintenance of comparison blocks Maintenance and Recalibration
Appendix A gives the recommended maintenance method for the surface torque comparison blocks. The comparison blocks should be carefully maintained. If any obvious wear or damage is found, they should be recalibrated or scrapped. Note: Regularly used comparison blocks should be checked every 3 months, or whenever there is wear or damage on the surface, and checked against unused comparison blocks. If an area on a comparison block in use is compared with the same area on an unused comparison block, the assessment grade of different surface roughness is obtained (see IS08503-2). Comparison blocks in use should be scrapped or recalibrated. 8IS0 Calibration certificate for surface roughness comparison blocks In addition to meeting the requirements of Chapters 4 to 7, the calibration certificate for each ISO surface roughness comparison block shall also indicate: a) Manufacturer
Serial or confirmation number
Reference comparison block (see Chapter 4) and its calibration certificate: Date of production.
GE/T13288.12008/1S08503-1.1988 Appendix A
【Informative Appendix】
Recommended maintenance methods for surface roughness comparison blocks A Like all sensitive instruments
·, store and protect surface roughness comparison blocks. When not in use, the surface roughness comparison blocks should be placed in protective covers. The test surface of the comparison block with the protective cover removed should not be placed on the surface. A, 2 If the comparison block is dirty, it should be cleaned with a dilute detergent solution and a soft brush. When the comparison sample is damp, wipe it dry with soft tissue paper.
Surface roughness comparison samples should be inspected according to the provisions of Chapter 7. A.3339
Sampling length (as defined in ISO 4287-1)The length of the reference line used to identify irregular changes in the roughness of the surface. 3.10
Maximum peak-to-valley height (by stylus)
maximum peak-to-valley height (by stylus) GB/T 13288.1—2008/1S0 8503-1:1988 The maximum peak-to-valley height within an independent sampling length (3.9) when measured by stylus (see ISO 8503-4). Non: R, in SO4287-1, is defined as the vertical range between the peak line and the valley bottom line of the group length 3.11
average maximum peak-to-valley height (stylus method) inezinmaximunpeak-to-valleyheight (hyslylus) R.
the average value of the maximum valley height R. (3.10) within 5 adjacent individual sampling lengths 3.9). Exchange: Sometimes R, is also referred to as Rm. In DN4768, R, is defined accurately according to the above definition of scale, 3.12
grandmean-marimum peak-to-valleyheight(bystylus)R
Multiple (not less than 10)
Primary roughness
Simple valley height (3.11) measured valuesPrimarsprofile
Surface coarseness of steel before blast cleaning
.
Secondary roughness
Secondarypmofile
Surface roughness obtained after blast cleaning on a surface with original roughness3.15
BurrsHadkes
During blast cleaning, the surface of steel is hit by abrasives and produces fine burrs, which are still attached to the steel and sometimes appear high.
Independent beep
Actually higher than all surrounding peaks.
ISO surface roughness comparison
Electromechanical two-jet The surface roughness comparison sample block is flat. The shape and size are shown in Figure 1. When these parts are tested according to the method specified in ISO8503-3 and ISO8503-4, they should fully meet the values given in Table |. The surface treatment level of the comparison sample block should not be lower than the Sa2 level specified in ISO8501-1.
ISO surface roughness comparison sample block should be tested according to the method specified in ISO8503-3 and ISO8503-4. Manufactured by the electrodeposition forming method. The comparison sample is made of a low-profile alloy steel flat plate containing nickel or other grease-resistant metal elements (for example: existing electroforming products). TSO surface roughness comparison samples should be marked:
"1S03.503-1 Reference Comparison Sample G", which means the comparative sample of torsional stability after long-grain abrasive blasting cleaning, \1SDS503-1 Reference Comparison Sample S7, which means the comparative sample of torsional stability after long-grain abrasive blasting cleaning, GB/T 13288.1- 2008/1S0 8503-1: 1988m
Distribution Line
One District City 3 Ten
R5 ~68
ISO surface roughness comparison sample
Unit: whole meter
Allowable error: +0.5mm
Table 1 Nominal values and tolerances of surface roughness of each area of ISO surface roughness comparison sample a) Comparison sample area after sand dense material blasting cleaning
b Comparison sample area after shot abrasive dark blasting cleaning
Nominal value
Nominal value
Tolerance
When the microscope thermal adjustment method is used (see ISO8503-3), the nominal value refers to the nominal value. When the stylus method is used (see ISO8503-4), the nominal value is taken as a reference. Each comparison sample should be accompanied by a calibration certificate indicating the method of determining the surface roughness, the estimated tolerance and the calibrated surface roughness of each area [expressed in micrometers, see Chapter 8).
GB/T 13288.1—2008/IS0 8503-1:1988 Note: Other design structures of comparison samples may also be used, which shall contain an area of roughness and tolerances as specified in this standard. However, such a comparison sample cannot be confirmed as a "[ISO comparison sample], it can be registered according to the roughness specified in [ISO5503-1. 5 Roughness grade range
The roughness grade range shall be divided into "fine", "medium" and "twisted" according to Table 2. Table 2 Roughness grade range
a! Comparison sample for abrasive blast cleaning (G
Medium (G)
Roughness equivalent to and exceeding the nominal value of area 2, but less than the nominal value of area 2, but less than the nominal value of area 3. Roughness equivalent to and exceeding the nominal value of area 3, not To the nominal value of area 4 Shot abrasive blast cleaning comparison sample
Fine (S)
Medium (5)
Coarse (S)
6 Calibration of comparison sample
Roughness equals and exceeds the nominal value of area 1, but does not reach the nominal value of area 2. Roughness equals and exceeds the nominal value of area 2, but does not reach the nominal value of area 3. Roughness equals and exceeds the nominal value of area 3, but does not reach the nominal value of area 4. Determine the relative roughness of the reference surface according to the method specified in [S08503-3 or [S08503-4]. If all the roughness values are within the corresponding nominal values and tolerance ranges specified in Table 1, Within the range, the comparison block shall be considered to have been calibrated. Only the comparison blocks that meet the requirements of the table can be registered according to the contents specified in Chapter 4. Note: In case of disagreement, the calibration method specified in ISO8503-3 shall be used for reconciliation. After calibrating the comparison block using the stylus method (ISO8503-4) or the microscope focusing method (ISO8503-3), the comparison blocks whose surface roughness does not meet the given range in the table shall be scrapped. If the surface cleanliness of the comparison block does not meet the Sa2 or Sa3 level specified in ISO8501-1, the comparison block shall be scrapped. 7 Maintenance of comparison blocks Maintenance and Recalibration
Appendix A gives the recommended maintenance method for the surface torque comparison blocks. The comparison blocks should be carefully maintained. If any obvious wear or damage is found, they should be recalibrated or scrapped. Note: Regularly used comparison blocks should be checked every 3 months, or whenever there is wear or damage on the surface, and checked against unused comparison blocks. If an area on a comparison block in use is compared with the same area on an unused comparison block, the assessment grade of different surface roughness is obtained (see IS08503-2). Comparison blocks in use should be scrapped or recalibrated. 8IS0 Calibration certificate for surface roughness comparison blocks In addition to meeting the requirements of Chapters 4 to 7, the calibration certificate for each ISO surface roughness comparison block shall also indicate: a) Manufacturer
Serial or confirmation number
Reference comparison block (see Chapter 4) and its calibration certificate: Date of production.
GE/T13288.12008/1S08503-1.1988 Appendix A
【Informative Appendix】
Recommended maintenance methods for surface roughness comparison blocks A Like all sensitive instruments
·, store and protect surface roughness comparison blocks. When not in use, the surface roughness comparison blocks should be placed in protective covers. The test surface of the comparison block with the protective cover removed should not be placed on the surface. A, 2 If the comparison block is dirty, it should be cleaned with a dilute detergent solution and a soft brush. When the comparison sample is damp, wipe it dry with soft tissue paper.
Surface roughness comparison samples should be inspected according to the provisions of Chapter 7. A.39
Sampling length (as defined in ISO 4287-1)The length of the reference line used to identify irregular changes in the roughness of the surface. 3.10
Maximum peak-to-valley height (by stylus)
maximum peak-to-valley height (by stylus) GB/T 13288.1—2008/1S0 8503-1:1988 The maximum peak-to-valley height within an independent sampling length (3.9) when measured by stylus (see ISO 8503-4). Non: R, in SO4287-1, is defined as the vertical range between the peak line and the valley bottom line of the group length 3.11
average maximum peak-to-valley height (stylus method) inezinmaximunpeak-to-valleyheight (hyslylus) R.
the average value of the maximum valley height R. (3.10) within 5 adjacent individual sampling lengths 3.9). Exchange: Sometimes R, is also referred to as Rm. In DN4768, R, is defined accurately according to the above definition of scale, 3.12
grandmean-marimum peak-to-valleyheight(bystylus)R
Multiple (not less than 10)
Primary roughness
Simple valley height (3.11) measured valuesPrimarsprofile
Surface coarseness of steel before blast cleaning
.
Secondary roughness
Secondarypmofile
Surface roughness obtained after blast cleaning on a surface with original roughness3.15
BurrsHadkes
During blast cleaning, the surface of steel is hit by abrasives and produces fine burrs, which are still attached to the steel and sometimes appear high.
Independent beep
Actually higher than all surrounding peaks.
ISO surface roughness comparison
Electromechanical two-jet The surface roughness comparison sample block is flat. The shape and size are shown in Figure 1. When these parts are tested according to the method specified in ISO8503-3 and ISO8503-4, they should fully meet the values given in Table |. The surface treatment level of the comparison sample block should not be lower than the Sa2 level specified in ISO8501-1.
ISO surface roughness comparison sample block should be tested according to the method specified in ISO8503-3 and ISO8503-4. Manufactured by the electrodeposition forming method. The comparison sample is made of a low-profile alloy steel flat plate containing nickel or other grease-resistant metal elements (for example: existing electroforming products). TSO surface roughness comparison samples should be marked:
"1S03.503-1 Reference Comparison Sample G", which means the comparative sample of torsional stability after long-grain abrasive blasting cleaning, \1SDS503-1 Reference Comparison Sample S7, which means the comparative sample of torsional stability after long-grain abrasive blasting cleaning, GB/T 13288.1- 2008/1S0 8503-1: 1988m
Distribution Line
One District City 3 Ten
R5 ~68
ISO surface roughness comparison sample
Unit: whole meter
Allowable error: +0.5mm
Table 1 Nominal values and tolerances of surface roughness of each area of ISO surface roughness comparison sample a) Comparison sample area after sand dense material blasting cleaning
b Comparison sample area after shot abrasive dark blasting cleaningwwW.bzxz.Net
Nominal value
Nominal value
Tolerance
When the microscope thermal adjustment method is used (see ISO8503-3), the nominal value refers to the nominal value. When the stylus method is used (see ISO8503-4), the nominal value is taken as a reference. Each comparison sample should be accompanied by a calibration certificate indicating the method of determining the surface roughness, the estimated tolerance and the calibrated surface roughness of each area [expressed in micrometers, see Chapter 8).
GB/T 13288.1—2008/IS0 8503-1:1988 Note: Other design structures of comparison samples may also be used, which shall contain an area of roughness and tolerances as specified in this standard. However, such a comparison sample cannot be confirmed as a "[ISO comparison sample], it can be registered according to the roughness specified in [ISO5503-1. 5 Roughness grade range
The roughness grade range shall be divided into "fine", "medium" and "twisted" according to Table 2. Table 2 Roughness grade range
a! Comparison sample for abrasive blast cleaning (G
Medium (G)
Roughness equivalent to and exceeding the nominal value of area 2, but less than the nominal value of area 2, but less than the nominal value of area 3. Roughness equivalent to and exceeding the nominal value of area 3, not To the nominal value of area 4 Shot abrasive blast cleaning comparison sample
Fine (S)
Medium (5)
Coarse (S)
6 Calibration of comparison sample
Roughness equals and exceeds the nominal value of area 1, but does not reach the nominal value of area 2. Roughness equals and exceeds the nominal value of area 2, but does not reach the nominal value of area 3. Roughness equals and exceeds the nominal value of area 3, but does not reach the nominal value of area 4. Determine the relative roughness of the reference surface according to the method specified in [S08503-3 or [S08503-4]. If all the roughness values are within the corresponding nominal values and tolerance ranges specified in Table 1, Within the range, the comparison block shall be considered to have been calibrated. Only the comparison blocks that meet the requirements of the table can be registered according to the contents specified in Chapter 4. Note: In case of disagreement, the calibration method specified in ISO8503-3 shall be used for reconciliation. After calibrating the comparison block using the stylus method (ISO8503-4) or the microscope focusing method (ISO8503-3), the comparison blocks whose surface roughness does not meet the given range in the table shall be scrapped. If the surface cleanliness of the comparison block does not meet the Sa2 or Sa3 level specified in ISO8501-1, the comparison block shall be scrapped. 7 Maintenance of comparison blocks Maintenance and Recalibration
Appendix A gives the recommended maintenance method for the surface torque comparison blocks. The comparison blocks should be carefully maintained. If any obvious wear or damage is found, they should be recalibrated or scrapped. Note: Regularly used comparison blocks should be checked every 3 months, or whenever there is wear or damage on the surface, and checked against unused comparison blocks. If an area on a comparison block in use is compared with the same area on an unused comparison block, the assessment grade of different surface roughness is obtained (see IS08503-2). Comparison blocks in use should be scrapped or recalibrated. 8IS0 Calibration certificate for surface roughness comparison blocks In addition to meeting the requirements of Chapters 4 to 7, the calibration certificate for each ISO surface roughness comparison block shall also indicate: a) Manufacturer
Serial or confirmation number
Reference comparison block (see Chapter 4) and its calibration certificate: Date of production.
GE/T13288.12008/1S08503-1.1988 Appendix A
【Informative Appendix】
Recommended maintenance methods for surface roughness comparison blocks A Like all sensitive instruments
·, store and protect surface roughness comparison blocks. When not in use, the surface roughness comparison blocks should be placed in protective covers. The test surface of the comparison block with the protective cover removed should not be placed on the surface. A, 2 If the comparison block is dirty, it should be cleaned with a dilute detergent solution and a soft brush. When the comparison sample is damp, wipe it dry with soft tissue paper.
Surface roughness comparison samples should be inspected according to the provisions of Chapter 7. A.3
The maximum peak-to-valley height R.(3.10) within 5 adjacent individual sampling lengths 3.9). Sometimes R is also referred to as Rm. In DN4768, R is defined accurately according to the above definition of the scale. 3.12
Grand mean maximum peak-to-valley height (melting needle method) grandmean-marimum peak-to-valleyheight(bystylus)R
Multiple (not less than 10)
Primary roughness
Simple valley height (3.11) measured valuesPrimarsprofile
Surface coarseness of steel before blast cleaning
.
Secondary roughness
Secondarypmofile
Surface roughness obtained after blast cleaning on a surface with original roughness3.15
BurrsHadkes
During blast cleaning, the surface of steel is hit by abrasives and produces fine burrs, which are still attached to the steel and sometimes appear high.
Independent beep
Actually higher than all surrounding peaks.
ISO surface roughness comparison
Electromechanical two-jet The surface roughness comparison sample block is flat. The shape and size are shown in Figure 1. When these parts are tested according to the method specified in ISO8503-3 and ISO8503-4, they should fully meet the values given in Table |. The surface treatment level of the comparison sample block should not be lower than the Sa2 level specified in ISO8501-1.
ISO surface roughness comparison sample block should be tested according to the method specified in ISO8503-3 and ISO8503-4. Manufactured by the electrodeposition forming method. The comparison sample is made of a low-profile alloy steel flat plate containing nickel or other grease-resistant metal elements (for example: existing electroforming products). TSO surface roughness comparison samples should be marked:
"1S03.503-1 Reference Comparison Sample G", which means the comparative sample of torsional stability after long-grain abrasive blasting cleaning, \1SDS503-1 Reference Comparison Sample S7, which means the comparative sample of torsional stability after long-grain abrasive blasting cleaning, GB/T 13288.1- 2008/1S0 8503-1: 1988m
Distribution Line
One District City 3 Ten
R5 ~68
ISO surface roughness comparison sample
Unit: whole meter
Allowable error: +0.5mm
Table 1 Nominal values and tolerances of surface roughness of each area of ISO surface roughness comparison sample a) Comparison sample area after sand dense material blasting cleaning
b Comparison sample area after shot abrasive dark blasting cleaning
Nominal value
Nominal value
Tolerance
When the microscope thermal adjustment method is used (see ISO8503-3), the nominal value refers to the nominal value. When the stylus method is used (see ISO8503-4), the nominal value is taken as a reference. Each comparison sample should be accompanied by a calibration certificate indicating the method of determining the surface roughness, the estimated tolerance and the calibrated surface roughness of each area [expressed in micrometers, see Chapter 8).
GB/T 13288.1—2008/IS0 8503-1:1988 Note: Other design structures of comparison samples may also be used, which shall contain an area of roughness and tolerances as specified in this standard. However, such a comparison sample cannot be confirmed as a "[ISO comparison sample], it can be registered according to the roughness specified in [ISO5503-1. 5 Roughness grade range
The roughness grade range shall be divided into "fine", "medium" and "twisted" according to Table 2. Table 2 Roughness grade range
a! Comparison sample for abrasive blast cleaning (G
Medium (G)
Roughness equivalent to and exceeding the nominal value of area 2, but less than the nominal value of area 2, but less than the nominal value of area 3. Roughness equivalent to and exceeding the nominal value of area 3, not To the nominal value of area 4 Shot abrasive blast cleaning comparison sample
Fine (S)
Medium (5)
Coarse (S)
6 Calibration of comparison sample
Roughness equals and exceeds the nominal value of area 1, but does not reach the nominal value of area 2. Roughness equals and exceeds the nominal value of area 2, but does not reach the nominal value of area 3. Roughness equals and exceeds the nominal value of area 3, but does not reach the nominal value of area 4. Determine the relative roughness of the reference surface according to the method specified in [S08503-3 or [S08503-4]. If all the roughness values are within the corresponding nominal values and tolerance ranges specified in Table 1, Within the range, the comparison block shall be considered to have been calibrated. Only the comparison blocks that meet the requirements of the table can be registered according to the contents specified in Chapter 4. Note: In case of disagreement, the calibration method specified in ISO8503-3 shall be used for reconciliation. After calibrating the comparison block using the stylus method (ISO8503-4) or the microscope focusing method (ISO8503-3), the comparison blocks whose surface roughness does not meet the given range in the table shall be scrapped. If the surface cleanliness of the comparison block does not meet the Sa2 or Sa3 level specified in ISO8501-1, the comparison block shall be scrapped. 7 Maintenance of comparison blocks Maintenance and Recalibration
Appendix A gives the recommended maintenance method for the surface torque comparison blocks. The comparison blocks should be carefully maintained. If any obvious wear or damage is found, they should be recalibrated or scrapped. Note: Regularly used comparison blocks should be checked every 3 months, or whenever there is wear or damage on the surface, and checked against unused comparison blocks. If an area on a comparison block in use is compared with the same area on an unused comparison block, the assessment grade of different surface roughness is obtained (see IS08503-2). Comparison blocks in use should be scrapped or recalibrated. 8IS0 Calibration certificate for surface roughness comparison blocks In addition to meeting the requirements of Chapters 4 to 7, the calibration certificate for each ISO surface roughness comparison block shall also indicate: a) Manufacturer
Serial or confirmation number
Reference comparison block (see Chapter 4) and its calibration certificate: Date of production.
GE/T13288.12008/1S08503-1.1988 Appendix A
【Informative Appendix】
Recommended maintenance methods for surface roughness comparison blocks A Like all sensitive instruments
·, store and protect surface roughness comparison blocks. When not in use, the surface roughness comparison blocks should be placed in protective covers. The test surface of the comparison block with the protective cover removed should not be placed on the surface. A, 2 If the comparison block is dirty, it should be cleaned with a dilute detergent solution and a soft brush. When the comparison sample is damp, wipe it dry with soft tissue paper.
Surface roughness comparison samples should be inspected according to the provisions of Chapter 7. A.3
The maximum peak-to-valley height R.(3.10) within 5 adjacent individual sampling lengths 3.9). Sometimes R is also referred to as Rm. In DN4768, R is defined accurately according to the above definition of the scale. 3.12
Grand mean maximum peak-to-valley height (melting needle method) grandmean-marimum peak-to-valleyheight(bystylus)R
Multiple (not less than 10)
Primary roughness
Simple valley height (3.11) measured valuesPrimarsprofile
Surface coarseness of steel before blast cleaning
.
Secondary roughness
Secondarypmofile
Surface roughness obtained after blast cleaning on a surface with original roughness3.15
BurrsHadkes
During blast cleaning, the surface of steel is hit by abrasives and produces fine burrs, which are still attached to the steel and sometimes appear high.
Independent beep
Actually higher than all surrounding peaks.
ISO surface roughness comparison
Electromechanical two-jet The surface roughness comparison sample block is flat. The shape and size are shown in Figure 1. When these parts are tested according to the method specified in ISO8503-3 and ISO8503-4, they should fully meet the values given in Table |. The surface treatment level of the comparison sample block should not be lower than the Sa2 level specified in ISO8501-1.
ISO surface roughness comparison sample block should be tested according to the method specified in ISO8503-3 and ISO8503-4. Manufactured by the electrodeposition forming method. The comparison sample is made of a low-profile alloy steel flat plate containing nickel or other grease-resistant metal elements (for example: existing electroforming products). TSO surface roughness comparison samples should be marked:
"1S03.503-1 Reference Comparison Sample G", which means the comparative sample of torsional stability after long-grain abrasive blasting cleaning, \1SDS503-1 Reference Comparison Sample S7, which means the comparative sample of torsional stability after long-grain abrasive blasting cleaning, GB/T 13288.1- 2008/1S0 8503-1: 1988m
Distribution Line
One District City 3 Ten
R5 ~68
ISO surface roughness comparison sample
Unit: whole meter
Allowable error: +0.5mm
Table 1 Nominal values and tolerances of surface roughness of each area of ISO surface roughness comparison sample a) Comparison sample area after sand dense material blasting cleaning
b Comparison sample area after shot abrasive dark blasting cleaning
Nominal value
Nominal value
Tolerance
When the microscope thermal adjustment method is used (see ISO8503-3), the nominal value refers to the nominal value. When the stylus method is used (see ISO8503-4), the nominal value is taken as a reference. Each comparison sample should be accompanied by a calibration certificate indicating the method of determining the surface roughness, the estimated tolerance and the calibrated surface roughness of each area [expressed in micrometers, see Chapter 8).
GB/T 13288.1—2008/IS0 8503-1:1988 Note: Other design structures of comparison samples may also be used, which shall contain an area of roughness and tolerances as specified in this standard. However, such a comparison sample cannot be confirmed as a "[ISO comparison sample], it can be registered according to the roughness specified in [ISO5503-1. 5 Roughness grade range
The roughness grade range shall be divided into "fine", "medium" and "twisted" according to Table 2. Table 2 Roughness grade range
a! Comparison sample for abrasive blast cleaning (G
Medium (G)
Roughness equivalent to and exceeding the nominal value of area 2, but less than the nominal value of area 2, but less than the nominal value of area 3. Roughness equivalent to and exceeding the nominal value of area 3, not To the nominal value of area 4 Shot abrasive blast cleaning comparison sample
Fine (S)
Medium (5)
Coarse (S)
6 Calibration of comparison sample
Roughness equals and exceeds the nominal value of area 1, but does not reach the nominal value of area 2. Roughness equals and exceeds the nominal value of area 2, but does not reach the nominal value of area 3. Roughness equals and exceeds the nominal value of area 3, but does not reach the nominal value of area 4. Determine the relative roughness of the reference surface according to the method specified in [S08503-3 or [S08503-4]. If all the roughness values are within the corresponding nominal values and tolerance ranges specified in Table 1, Within the range, the comparison block shall be considered to have been calibrated. Only the comparison blocks that meet the requirements of the table can be registered according to the contents specified in Chapter 4. Note: In case of disagreement, the calibration method specified in ISO8503-3 shall be used for reconciliation. After calibrating the comparison block using the stylus method (ISO8503-4) or the microscope focusing method (ISO8503-3), the comparison blocks whose surface roughness does not meet the given range in the table shall be scrapped. If the surface cleanliness of the comparison block does not meet the Sa2 or Sa3 level specified in ISO8501-1, the comparison block shall be scrapped. 7 Maintenance of comparison blocks Maintenance and Recalibration
Appendix A gives the recommended maintenance method for the surface torque comparison blocks. The comparison blocks should be carefully maintained. If any obvious wear or damage is found, they should be recalibrated or scrapped. Note: Regularly used comparison blocks should be checked every 3 months, or whenever there is wear or damage on the surface, and checked against unused comparison blocks. If an area on a comparison block in use is compared with the same area on an unused comparison block, the assessment grade of different surface roughness is obtained (see IS08503-2). Comparison blocks in use should be scrapped or recalibrated. 8IS0 Calibration certificate for surface roughness comparison blocks In addition to meeting the requirements of Chapters 4 to 7, the calibration certificate for each ISO surface roughness comparison block shall also indicate: a) Manufacturer
Serial or confirmation number
Reference comparison block (see Chapter 4) and its calibration certificate: Date of production.
GE/T13288.12008/1S08503-1.1988 Appendix A
【Informative Appendix】
Recommended maintenance methods for surface roughness comparison blocks A Like all sensitive instruments
·, store and protect surface roughness comparison blocks. When not in use, the surface roughness comparison blocks should be placed in protective covers. The test surface of the comparison block with the protective cover removed should not be placed on the surface. A, 2 If the comparison block is dirty, it should be cleaned with a dilute detergent solution and a soft brush. When the comparison sample is damp, wipe it dry with soft tissue paper.
Surface roughness comparison samples should be inspected according to the provisions of Chapter 7. A.3503-1 Reference comparison sample G", refers to the comparative sample of torsional stability after long grit abrasive blast cleaning, \1SDS503-1 Reference comparison sample S7, refers to the comparative sample of torsional stability after long grit abrasive blast cleaning, GB/T 13288.1- 2008/1S0 8503-1: 1988m
Distribution line
One area city 3 ten
R5 ~68
ISO surface roughness comparison block
Unit is whole meter
Allowable error: +0.5mm
Table 1 Nominal values and tolerances of surface roughness of each area of ISO surface roughness comparison block a) Comparison block area after sand grain dense material blast cleaning
b Comparison block area after shot abrasive dark blast cleaning
Nominal value
Nominal value
Tolerance
When the microscope heat adjustment method (see ISO8503-3) is used, the nominal value is referenced. When the stylus method (see ISO8503-4) is used, the nominal value is referenced. Each comparison block should be accompanied by a calibration certificate indicating the method of determining the surface roughness, the estimated tolerance and the calibrated surface roughness of each area [expressed in micrometers, see Chapter 8).
GB/T 13288.1—2008/IS0 8503-1:1988 Note: Other design phase structures of comparison blocks may also be used, which shall contain an area of roughness and tolerances as specified in this standard. However, such a comparison block cannot be confirmed as a "[SO comparison block", it can be registered according to the roughness specified in [SO5503-1. 5 Roughness grade range
The roughness grade range shall be divided into "fine", "medium" and "twisted" as given in Table 2. Table 2 Roughness grade range
a! Comparison specimens for abrasive blast cleaning (G
Medium (G)
Randomness equal to and exceeding nominal value for zone 1, but less than nominal value for zone 2 Coarseness equal to and exceeding nominal value for zone 2, but less than nominal value for zone 3 Mirror precision equal to and exceeding nominal value for zone 3, less than nominal value for zone 4 Comparison specimens for shot abrasive blast cleaning
Fine (S)
Medium (5)
Coarse (S)
6 Comparison specimen calibration
Coarseness equal to and exceeding The nominal value of area 1 is equal to or exceeds the nominal value of area 2, but not equal to or exceeds the nominal value of area 3. The nominal value of area 3 is equal to or exceeds the nominal value of area 3, and not equal to or exceeds the nominal value of area 4. According to the method specified in [S08503-3 or [S08503-4], the relative roughness of the reference card surface is determined. If all the roughness values are within the corresponding nominal values and tolerance ranges specified in Table 1, the comparison block shall be considered to have been calibrated. Only the surface roughness comparison blocks that meet the requirements of the above requirements can be registered according to the contents specified in Chapter 4. Note: In When there is a disagreement, the calibration method specified in ISO8503-3 shall be used for reconciliation. After the comparison sample is calibrated by the stylus method (ISO8503-4) or the microscope focusing method (ISO8503-3), the comparison sample whose surface roughness does not meet the given range in the table should be scrapped. If the surface cleanliness of the comparison sample does not meet the Sa2 or Sa3 level specified in ISO8501-1, the comparison sample should be scrapped. 7 Maintenance and recalibration of comparison samples
Appendix A gives the table and the torque comparison sample Recommended maintenance methods for comparison blocks should be carefully maintained. If any obvious wear or damage is found, it should be recalibrated or scrapped. Note: Comparison blocks that are frequently used should be checked every 3 months, or whenever there is wear or damage on the surface, and checked against comparison blocks that have never been used. If an area on a comparison block in use is compared with the same area on an unused comparison block, the assessment grade of different surface roughness is obtained (see IS08503-2). Comparison blocks that are purchased and used should be scrapped or recalibrated. 8. Calibration certificate for IS0 surface roughness comparison blocks In addition to meeting the requirements of Chapters 4 to 7, the calibration certificate for each IS0 surface roughness comparison block shall also indicate: a) manufacturer
serial or confirmation number
reference comparison block (see Chapter 4) and its calibration certificate: date of production.
GE/T13288.12008/1S08503-1.1988 Appendix A
【Informative Appendix】
Recommended maintenance methods for surface roughness comparison samples A Like all sensitive instruments, store and protect surface roughness comparison samples. When not in use, the surface roughness comparison samples should be placed in a protective cover. The test surface of the comparison sample without the protective cover should not be placed on the surface. A.2 If the comparison sample is dirty, it should be cleaned with a dilute detergent solution and a soft brush. When the comparison sample is damp, wipe it dry with soft cotton paper.
Surface roughness comparison samples should be inspected in accordance with the provisions of Chapter 7. A.3503-1 Reference comparison sample G", refers to the comparative sample of torsional stability after long grit abrasive blast cleaning, \1SDS503-1 Reference comparison sample S7, refers to the comparative sample of torsional stability after long grit abrasive blast cleaning, GB/T 13288.1- 2008/1S0 8503-1: 1988m
Distribution line
One area city 3 ten
R5 ~68
ISO surface roughness comparison block
Unit is whole meter
Allowable error: +0.5mm
Table 1 Nominal values and tolerances of surface roughness of each area of ISO surface roughness comparison block a) Comparison block area after sand grain dense material blast cleaning
b Comparison block area after shot abrasive dark blast cleaning
Nominal value
Nominal value
Tolerance
When the microscope heat adjustment method (see ISO8503-3) is used, the nominal value is referenced. When the stylus method (see ISO8503-4) is used, the nominal value is referenced. Each comparison block should be accompanied by a calibration certificate indicating the method of determining the surface roughness, the estimated tolerance and the calibrated surface roughness of each area [expressed in micrometers, see Chapter 8).
GB/T 13288.1—2008/IS0 8503-1:1988 Note: Other design phase structures of comparison blocks may also be used, which shall contain an area of roughness and tolerances as specified in this standard. However, such a comparison block cannot be confirmed as a "[SO comparison block", it can be registered according to the roughness specified in [SO5503-1. 5 Roughness grade range
The roughness grade range shall be divided into "fine", "medium" and "twisted" as given in Table 2. Table 2 Roughness grade range
a! Comparison specimens for abrasive blast cleaning (G
Medium (G)
Randomness equal to and exceeding nominal value for zone 1, but less than nominal value for zone 2 Coarseness equal to and exceeding nominal value for zone 2, but less than nominal value for zone 3 Mirror precision equal to and exceeding nominal value for zone 3, less than nominal value for zone 4 Comparison specimens for shot abrasive blast cleaning
Fine (S)
Medium (5)
Coarse (S)
6 Comparison specimen calibration
Coarseness equal to and exceeding The nominal value of area 1 is equal to or exceeds the nominal value of area 2, but not equal to or exceeds the nominal value of area 3. The nominal value of area 3 is equal to or exceeds the nominal value of area 3, and not equal to or exceeds the nominal value of area 4. According to the method specified in [S08503-3 or [S08503-4], the relative roughness of the reference card surface is determined. If all the roughness values are within the corresponding nominal values and tolerance ranges specified in Table 1, the comparison block shall be considered to have been calibrated. Only the surface roughness comparison blocks that meet the requirements of the above requirements can be registered according to the contents specified in Chapter 4. Note: In When there is a disagreement, the calibration method specified in ISO8503-3 shall be used for reconciliation. After the comparison sample is calibrated by the stylus method (ISO8503-4) or the microscope focusing method (ISO8503-3), the comparison sample whose surface roughness does not meet the given range in the table should be scrapped. If the surface cleanliness of the comparison sample does not meet the Sa2 or Sa3 level specified in ISO8501-1, the comparison sample should be scrapped. 7 Maintenance and recalibration of comparison samples
Appendix A gives the table and the torque comparison sample Recommended maintenance methods for comparison blocks should be carefully maintained. If any obvious wear or damage is found, it should be recalibrated or scrapped. Note: Comparison blocks that are frequently used should be checked every 3 months, or whenever there is wear or damage on the surface, and checked against comparison blocks that have never been used. If an area on a comparison block in use is compared with the same area on an unused comparison block, the assessment grade of different surface roughness is obtained (see IS08503-2). Comparison blocks that are purchased and used should be scrapped or recalibrated. 8. Calibration certificate for IS0 surface roughness comparison blocks In addition to meeting the requirements of Chapters 4 to 7, the calibration certificate for each IS0 surface roughness comparison block shall also indicate: a) manufacturer
serial or confirmation number
reference comparison block (see Chapter 4) and its calibration certificate: date of production.
GE/T13288.12008/1S08503-1.1988 Appendix A
【Informative Appendix】
Recommended maintenance methods for surface roughness comparison samples A Like all sensitive instruments, store and protect surface roughness comparison samples. When not in use, the surface roughness comparison samples should be placed in a protective cover. The test surface of the comparison sample without the protective cover should not be placed on the surface. A.2 If the comparison sample is dirty, it should be cleaned with a dilute detergent solution and a soft brush. When the comparison sample is damp, wipe it dry with soft cotton paper.
Surface roughness comparison samples should be inspected in accordance with the provisions of Chapter 7. A.3Comparison blocks in use should be scrapped or recalibrated. 8. Calibration certificate for IS0 surface roughness comparison blocks In addition to meeting the requirements of Chapter 4 to Chapter 7, the calibration certificate for each IS0 surface roughness comparison block should also indicate: a) manufacturer
serial or confirmation number
reference comparison block (see Chapter 4) and its calibration certificate: production date.
GE/T13288.12008/1S08503-1.1988 Appendix A
[Informative Appendix]
Recommended maintenance methods for surface roughness comparison blocks A Like all sensitive instruments
, store and protect surface roughness comparison blocks. When not in use, surface roughness comparison blocks should be placed in protective covers. The test surface of the comparison block without the protective cover should not be placed on the surface. A.2 If the comparison sample is dirty, it should be cleaned with a dilute detergent solution and a soft brush. When the comparison sample is damp, wipe it dry with soft tissue paper.
Surface roughness comparison samples should be inspected in accordance with the provisions of Chapter 7. A.3Comparison blocks in use should be scrapped or recalibrated. 8. Calibration certificate for IS0 surface roughness comparison blocks In addition to meeting the requirements of Chapter 4 to Chapter 7, the calibration certificate for each IS0 surface roughness comparison block should also indicate: a) manufacturer
serial or confirmation number
reference comparison block (see Chapter 4) and its calibration certificate: production date.
GE/T13288.12008/1S08503-1.1988 Appendix A
[Informative Appendix]
Recommended maintenance methods for surface roughness comparison blocks A Like all sensitive instruments
, store and protect surface roughness comparison blocks. When not in use, surface roughness comparison blocks should be placed in protective covers. The test surface of the comparison block without the protective cover should not be placed on the surface. A.2 If the comparison sample is dirty, it should be cleaned with a dilute detergent solution and a soft brush. When the comparison sample is damp, wipe it dry with soft tissue paper.
Surface roughness comparison samples should be inspected in accordance with the provisions of Chapter 7. A.3
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