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ASTM D1732-03(2018)
Standard Practices for Preparation of Magnesium Alloy Surfaces for Painting
NORMA vydaná dňa 1.10.2018
Informácie o norme:
Označenie normy: ASTM D1732-03(2018)
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.10.2018
Kód tovaru: NS-903317
Počet strán: 8
Približná hmotnosť: 24 g (0.05 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Kategórie - podobné normy:
Anotácia textu normy ASTM D1732-03(2018) :
Keywords:
anodic treatments, magnesium, painting, surface preparation,, ICS Number Code 87.020 (Paint coating processes)
Doplňujúce informácie
| 1. Scope |
|
1.1 These practices cover two classes of treatment for preparation of magnesium alloy surfaces for painting, as follows: Class I—Chemical Treatments. Class II—Anodic Treatments. In general, the latter treatments are the more protective of the two classes. Mechanical (abrasive) treatments, solvent cleaning, alkaline solution treatments, and acid pickles not resulting in protective conversion coatings are suitable preliminary treatments only for metal to be exposed under mildly corrosive (indoor) exposures. When a high degree of corrosion protection and paint adhesion are desired, as in many outdoor environments, surface preparation by one of the above conversion-coat classes is necessary. The hexavalent chromium based methods given are not recommended as hexavalent chromium is a known carcinogen. Note 1: 1.2 This standard may involve
hazardous materials, operations, and equipment. 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. (See Note 11.)
1.3 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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