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ASTM C765 – Standard Test Method for Low-Temperature Flexibility of Preformed Tape Sealants Description: Significance and Use 5.1 Preformed tape sealants are tacky, deformable solids that are used under compression between two substrates in a variety of sealing applications. This procedure is not intended to simulate an actual use condition, but it will give some indication …
ASTM C748 – Standard Test Method for Rockwell Hardness of Graphite Materials Description: Significance and Use 4.1 A Rockwell L scale hardness number is a number derived from the net increase in depth of impression as the load on a 6.3500 mm ± 0.0025 mm diameter steel-ball indenter is increased from a fixed 10 kg minor load to a …
ASTM C739 – Standard Specification for Cellulosic Fiber Loose-Fill Thermal Insulation Description: Abstract This specification covers the composition and physical requirements of chemically treated, recycled cellulosic fiber loose-fill type thermal insulation for installation in attics or enclosed spaces in housing and other buildings by pneumatic or pouring method. While the products are used in various …
ASTM C734 – Standard Test Method for Low-Temperature Flexibility of Latex Sealants After Artificial Weathering Description: Significance and Use 5.1 This test evaluates the flexibility of artificially weathered latex sealants in a low-temperature environment. Scope 1.1 This test method covers a laboratory procedure for the determination of low-temperature flexibility of latex sealants after 500 h artificial weathering. …
ASTM C730 – Standard Test Method for Knoop Indentation Hardness of Glass Description: Significance and Use 4.1 The Knoop indentation hardness is one of many properties that is used to characterize glasses. Attempts have been made to relate Knoop indentation hardness to tensile strength, grinding speeds, and other hardness scales, but no generally accepted methods are …
ASTM C719 – Standard Test Method for Adhesion and Cohesion of Elastomeric Joint Sealants Under Cyclic Movement (Hockman Cycle) Description: Significance and Use 5.1 The failure of a building sealant in an active joint is usually manifested by cohesive failure in the sealant or adhesive failure between the sealant and the substrate, or both. The method …
ASTM C704 – Standard Test Method for Abrasion Resistance of Refractory Materials at Room Temperature Description: Significance and Use 4.1 This test method measures the relative abrasion resistance of various refractory samples under standard conditions at room temperature. 4.2 The abrasion resistance of a refractory material provides an indication of its suitability for service in abrasive environments. …
ASTM C702 – Standard Practice for Reducing Samples of Aggregate to Testing Size Description: Significance and Use 4.1 Specifications for aggregates require obtaining representative portions of the supply material for testing. Other factors being equal, larger samples will tend to be more representative of the total supply. This practice provides procedures for reducing the large sample …
ASTM C70 – Standard Test Method for Surface Moisture in Fine Aggregate Description: Significance and Use 4.1 This test method is not widely used. However, it is a convenient procedure for field or plant determination of moisture content of fine aggregate if specific gravity values are known and if drying facilities are not available. It can …
ASTM C695 – Standard Test Method for Compressive Strength of Carbon and Graphite Description: Significance and Use 4.1 Carbon and graphite can usually support higher loads in compression than in any other mode of stress. This test, therefore, provides a measure of the maximum load-bearing capability of carbon and graphite objects. Scope 1.1 This test method covers …
