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  • ASTM
    D6525-12 Standard Test Method for Measuring Nominal Thickness of Rolled Erosion Control Products (Redline)
    Edition: 2012
    $55.41
    Unlimited Users per year

Description of ASTM-D6525 2012

ASTM D6525 - 12

Standard Test Method for Measuring Nominal Thickness of Rolled Erosion Control Products

Active Standard ASTM D6525 | Developed by Subcommittee: D35.05

Book of Standards Volume: 04.13




ASTM D6525

Significance and Use

5.1 Thickness is one of the basic physical properties used to control the quality of permanent rolled erosion control products. Thickness values may aid in the calculation of other permanent rolled erosion control product parameters. Thickness however is not generally an indication of field performance and generally should not be used in specifications. This test method is developed to aid manufacturers, designers, and end users in comparing the thickness of permanent rolled erosion control products through the use of an accepted ASTM standard.

5.2 The thickness of permanent rolled erosion control products may vary considerably depending on the pressure applied to the specimen during measurement. Where observed changes occur, thickness decreases when applied pressure is increased. To minimize variation, specific sample size and applied pressure are indicated in this test method to ensure all results are comparable.

5.3 This test method may be used for acceptance testing of commercial shipments of permanent rolled erosion control products, but caution is advised since information on between-laboratory precision is incomplete. Comparative tests in accordance with 5.3.1 may be advised.

5.3.1 In case of a dispute arising from differences in reported test results when using this test method for acceptance testing of commercial shipments, the purchaser and the supplier should conduct comparative tests to determine if there is a statistical bias between their laboratories. Competent statistical assistance is recommended for the investigation of bias. As a minimum, the two parties should take a group of test specimens that are as homogeneous as possible and that are formed from a lot of material of the type in question. The test specimens should be randomly assigned in equal numbers to each laboratory for testing. The average results from the two laboratories should be compared using Students t -test for unpaired data and an acceptable probability level chosen by the two parties before the testing is begun. If bias is found, either its cause must be found and corrected or the purchaser and supplier must agree to interpret future tests in light of the known bias.

Note 1 The user should be aware that the compressibility of the materials, their rebound characteristics, and the like will also affect the thickness of the permanent rolled erosion control products following the time they are rolled up on rolls, shipped, and stored.

1. Scope

1.1 This test method covers the measurement of the nominal thickness of permanent rolled erosion control products.

1.2 This test method does not provide thickness values for permanent rolled erosion control products under variable compressive stresses. This test method determines nominal thickness, not necessarily minimum thickness.

1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only.

1.4 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 and health practices and determine the applicability of regulatory limitations prior to use.


2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

D4354 Practice for Sampling of Geosynthetics for Testing

D5199 Test Method for Measuring the Nominal Thickness of Geosynthetics


Keywords


ICS Code

ICS Number Code 91.100.99 (Other construction materials)


DOI: 10.1520/D6525-12

ASTM International is a member of CrossRef.

ASTM D6525

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