ASTM D6525/D6525M-17
Standard Test Method for Measuring Nominal Thickness of Rolled Erosion Control Products

Standard No.

ASTM D6525/D6525M-17

Release Date

2017

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM D6525/D6525M-18

Latest

ASTM D6525/D6525M-18(2023)

Scope

5.1 Thickness is one of the basic physical properties used to control the quality of rolled erosion control products. Thickness values may aid in the calculation of other 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 rolled erosion control products through the use of an accepted ASTM standard.

5.2 The thickness of 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 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 Student’s 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 rolled erosion control products following the time they are rolled up on rolls, shipped, and stored.

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

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

1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may r......

ASTM D6525/D6525M-17 Referenced Document

• ASTM D4354 Standard Practice for Sampling of Geosynthetics for Testing
• ASTM E177 Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods
• ASTM E691 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method

ASTM D6525/D6525M-17 history

• 2023 ASTM D6525/D6525M-18(2023) Standard Test Method for Measuring Nominal Thickness of Rolled Erosion Control Products
• 2018 ASTM D6525/D6525M-18 Standard Test Method for Measuring Nominal Thickness of Rolled Erosion Control Products
• 2017 ASTM D6525/D6525M-17 Standard Test Method for Measuring Nominal Thickness of Rolled Erosion Control Products
• 2016 ASTM D6525/D6525M-16 Standard Test Method for Measuring Nominal Thickness of Rolled Erosion Control Products
• 2014 ASTM D6525/D6525M-14 Standard Test Method for Measuring Nominal Thickness of Rolled Erosion Control Products
• 2012 ASTM D6525-12 Standard Test Method for Measuring Nominal Thickness of Rolled Erosion Control Products
• 2000 ASTM D6525-00(2006) Standard Test Method for Measuring Nominal Thickness of Permanent Rolled Erosion Control Products
• 2000 ASTM D6525-00 Standard Test Method for Measuring Nominal Thickness of Permanent Rolled Erosion Control Products