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ASTM D5327-97(2021)e1
Standard Practice for Evaluating and Comparing Transfer Efficiency of Spray Applied Coatings Under General Laboratory Conditions (Includes all amendments and changes 6/28/2021).
NORMA vydaná dňa 1.6.2021
Informácie o norme:
Označenie normy: ASTM D5327-97(2021)e1
Dátum vydania normy: 1.6.2021
Kód tovaru: NS-1028113
Počet strán: 4
Približná hmotnosť: 12 g (0.03 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Kategórie - podobné normy:
Anotácia textu normy ASTM D5327-97(2021)e1 :
Keywords:
general laboratory method, laboratory practice, spray-applied coatings, transfer efficiency,, ICS Number Code 29.020 (Electrical engineering in general)
Doplňujúce informácie
| Significance and Use | ||||||||||||
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5.1?Subject to the limitations listed in 1.3, this practice can be used as a research tool to optimize spray equipment and paint formulations, as well as to study the relative effect on transfer efficiency of changing operating variables, spray application equipment, type of coatings, etc. |
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| 1. Scope | ||||||||||||
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1.1?This practice covers the evaluation and comparison of the transfer efficiency of spray-applied coatings under general laboratory conditions. Transfer efficiency is the ratio of paint solids deposited to the total paint solids used during the application process, expressed as a percent. This practice can be used to study the effect on transfer efficiency of changing operating variables and paint formulations. Key variables that need to be controlled are listed in 8.13. Note 1:?It is important that all process or formulation
parameters, except that which is intentionally being changed, be
kept consistent from test to test. If not done, the results of the
study are to be questioned.
1.2?The reproducibility of this practice is highly dependent on the degree of control of the parameters listed in Section 8 of the practice. 1.3?LimitationsThis laboratory practice indicates only the direction of the effect of operating variables and liquid paint formulations on transfer efficiency under conditions of the laboratory test: the magnitude of the effect can be determined only with specific plant experience. In fact, the nature of the critical parameters that affect transfer efficiency makes clear that it is not possible to extrapolate laboratory results. Note 2:?The laboratory practice outlined involves general
laboratory spray equipment and procedures and is derived from Test
Method D5009. This practice
and Test Method D5009 are
both derived from a study and report of transfer efficiency
measurements conducted for the U.S. Environmental Protection
Agency. For laboratories that have access to a conveyor and mass
flow measurement equipment, a suitable, potentially more
reproducible, tested method is defined in Test Method D5009.
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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