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ASTM D4417-19
Standard Test Methods for Field Measurement of Surface Profile of Blast Cleaned Steel
NORMA vydaná dňa 1.12.2019
Informácie o norme:
Označenie normy: ASTM D4417-19
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.12.2019
Kód tovaru: NS-980099
Počet strán: 7
Približná hmotnosť: 21 g (0.05 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Kategórie - podobné normy:
Anotácia textu normy ASTM D4417-19 :
Keywords:
abrasive, abrasive blast cleaning, anchor pattern, peak count, peak density, peak height, surface profile, surface roughness,, ICS Number Code 17.040.20 (Properties of surfaces), 77.140.01 (Iron and steel products in general)
Doplňujúce informácie
| Significance and Use | ||||||||
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5.1 The height of surface profile has been shown to be a factor in the performance of various coatings applied to steel. For this reason, surface profile should be measured prior to coating application to ensure conformance of a prepared surface to profile requirements specified by the manufacturer of a protective coating or the coating job specification. The instruments described are readily portable and sufficiently sturdy for use in the field. Note 2: Methods C and D include determination of the peak
count (number of profile peaks in a specified distance or unit
area). According to research performed by Roper, Weaver and
BrandonNote 3: Optical microscope methods serve as a referee method
for surface profile measurement methods A and B. Profile depth
designations are based on the concept of mean maximum profile
(1.1 These test methods cover the
description of techniques for measuring the profile of abrasive
blast cleaned surfaces in the field. There are other techniques
suitable for laboratory use not covered by these test methods.
1.2 Method B may also be appropriate to the measurement of profile produced by using power tools. Note 1: The Method B procedure in this standard was developed
for use on flat surfaces. Depending on the radius of the surface,
the results could have greater variability with lower values and
averages.
1.3 SSPC standard SSPC-PA 17 provides additional guidance for determining conformance with surface profile requirements. 1.4 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. |
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| 2. Referenced Documents | ||||||||
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