Significance and Use
This test method is accepted for testing of bales of raw cotton in commercial shipments.
This test method describes acceptable practices for testing of raw cotton using cotton classification instruments that are capable of testing the fiber properties of micronaire reading, length, uniformity index, strength, Rd (color), +b (color), percent area (trash) and particle count (trash).
1. Scope
1.1 This test method covers the measurement of color, trash content, micronaire, upper half mean length (length), uniformity index and breaking tenacity (strength) of raw cotton for cotton marketing using a cotton classification instrument.
1.2 This test method is applicable to Upland and Extra Long Staple (ELS) raw cotton.
1.3 This test method is applicable to roller and saw ginned raw cottons.
1.4 This test method contains the following sections.
| Section |
| Color | 8-11 |
| Trash Content | 12-15 |
| Micronaire Reading | 16-19 |
| Upper Half Mean Length (Length) and Uniformity Index | 20-23 |
| Breaking Tenacity (Strength) | 24-27 |
1.5 The values stated in both inch-pound and SI units are to be regarded separately as the standard. The values given in parentheses are for information only.
1.6 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
D123 Terminology Relating to Textiles
D1441 Practice for Sampling Cotton Fibers for Testing
D1445 Test Method for Breaking Strength and Elongation of Cotton Fibers (Flat Bundle Method)
D1447 Test Method for Length and Length Uniformity of Cotton Fibers by Fibrograph Measurement
D1448 Test Method for Micronaire Reading of Cotton Fibers
D1776 Practice for Conditioning and Testing Textiles
D2253 Test Method for Color of Raw Cotton Using the Nickerson-Hunter Cotton Colorimeter
D2812 Test Method for Non-Lint Content of Cotton
D3025 Practice for Standardizing Cotton Fiber Test Results by Use of Calibration Cotton Standards
D4848 Terminology of Force, Deformation and Related Properties of Textiles
D7139 Terminology for Cotton Fibers
Keywords
ICS Code
ICS Number Code 59.060.10 (Natural fibres)
DOI: 10.1520/D5867-12
ASTM International is a member of CrossRef.
Citing ASTM Standards
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