abstração

This guide covers the selection and use of procedures for testing exterior wood stains. Isso inclui água – and solvent-based translucent and opaque stains. The different conditions affecting the coating are introduced in detail. A balance of performance needs to be considered when determining requirements and selecting tests. Different test methods for determining the properties of liquid coatings are listed and discussed. Different methods for determining coating application and film formation are proposed and discussed in detail. Different test methods for determining the appearance of dry film are given. Different test methods for determining dry coating properties are described in detail. Different test methods and practices for chemical analysis of external wood are described in detail. While many suggested test methods attempt to simulate the coating and the conditions under which the coating is used, it is not possible to accurately replicate all possible conditions. It is recommended to use the test material under field conditions, including appropriate controls, for final assessment of its suitability.

Este resumo é uma breve visão geral dos padrões de referência. É apenas para referência e não é uma parte oficial do padrão; É necessária referência ao texto completo da própria norma para seu uso e aplicação. ASTM não oferece garantias de qualquer tipo, Expresso ou implícito, e não representa que o conteúdo deste resumo seja preciso, completo ou novo.

Guia padrão ASTM D6763-16 para testes de manchas externas de madeira e repelentes de água

Etapa 1: Escopo

1.1 This guide covers the selection and use of procedures for testing exterior wood stains and water repellents. This includes water-based and solvent-based translucent and opaque stains and clear water repellents. The attributes that can be checked or, in some cases, the relevant test procedures are listed in 2.1 e 2.2.

Observação 1: O termo “opaque stain” is defined as a tinted composition applied to a wood surface to produce an even finish that obscures the grain and color of the wood rather than the surface grain; Also known as solid color or solid skin.

Observação 2: O termo “translucency” is defined as a tinted composition used on a wood surface to produce an even finish that does not completely obscure the grain or grain of the wood.

Observação 3: O termo “transparent” is defined as a transparent composition used on a wood surface to produce an even finish that does not obscure the grain or grain of the wood.

1.1.1 Discussion – When applied to wood of different colours, there is a colour difference between the stained substrates.

1.2 Valores em polegadas a libras serão considerados valores padrão. Os valores dados entre parênteses são transformações matemáticas de unidades SI e são apenas para referência e não são considerados padrão.

1.3 This standard may address hazardous materials, operations and equipment. Esta norma não se destina a abordar todas as questões de segurança, caso existam, associado ao seu uso. Users of this standard are responsible for establishing appropriate safety and health practices and for determining the applicability of regulatory requirements prior to use.