ASTM-C473 Standard Test Methods for Physical Testing of Gypsum Panel Products

ASTM-C473 - 2017 EDITION - CURRENT -- See the following: ASTM-C26
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These test methods cover the physical testing of gypsum panel products. The test methos appear in the following order: (1) flexural strength (Method A); (2) core, end, and edge hardness (Method A); (3) nail pull resistance (Method A); (4) humidified deflection; (5) end squareness; (6) nominal thickness; (7) recessed- or tapered-edge depth; (8) width; (9) length; (10) water resistance of core-treated water repellant gypsum panel products; and (11) surface water resistance of gypsum panel products with water-repellant surfaces. For use in these test methods, a sample shall consist of gypsum panel products. Flexural properties of gypsum panel products are evaluated by supporting the specimen near the ends and applying a transverse load midway between the supports. The core, end, and edge hardness of gypsum panel products is evaluated by determining the force required to push a steel punch into the area of test. The ability of gypsum panel products to resist nail pull-through is evaluated by determining the loaded required to push a standard nail head through the product. The humidified deflection of gypsum panel products is evaluated by supporting a specimen that has been cut with the long dimension perpendicular to the machine detection, supported horizontally, and subjected to high humidity.

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Scope

1.1 These test methods cover the physical testing of gypsum panel products.

1.2 The test methods appear in the following order:

 

Section

Flexural Strength (Method A)

7

Core, End and Edge Hardness (Method A)

8

Nail Pull Resistance (Method A)

9

Flexural Strength (Method B)

11

Core, End and Edge Hardness (Method B)

12

Nail Pull Resistance (Method B)

13

Humidified Deflection

14

End Squareness

15

Nominal Thickness

16

Recessed- or Tapered Edge Depth

17

Width

18

Length

19

Water Resistance of Core-Treated Water-Repellent
 Gypsum Panel Products


20

Surface Water Resistance of Gypsum Panel Products
 with Water-Repellent Surfaces


21

1.3 The values stated in inch-pound units are to be regarded as standard with the exception of weight of samples in SI gram units. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

1.4 The text of these test methods references notes and footnotes that provide explanatory material. These notes and footnotes, excluding those in tables and figures, shall not be considered as requirements of these test methods.

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.

Keywords

absorption testing; core hardness testing; dimension measurements; edge hardness testing; end hardness testing; flexural strength; gypsum panel products; humidified sag; nail pull testing;; ICS Number Code 91.060.10 (Walls. Partitions. Facades); 91.100.10 (Cement. Gypsum. Lime. Mortar)

To find similar documents by ASTM Volume:

04.01 (Cement; Lime; Gypsum)

To find similar documents by classification:

91.060.10 (Walls. Partitions. Façades)

91.100.10 (Cement. Gypsum. Lime. Mortar)

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Document Number

ASTM-C473-17

Revision Level

2017 EDITION

Status

Current

Modification Type

Revision

Publication Date

Nov. 15, 2017

Document Type

Test Method

Page Count

18 pages

Committee Number

C11.01