ASTM D5431-08(2013) PDF

1.1 This specification covers the evaluation of specific performance characteristics of importance in woven and knit flat, fitted, and waterbed sheet products for use in institutional and household environments.

1.2 This specification may be used by mutual agreement between the purchaser and the supplier to establish purchasing specification requirements.

1.3 The requirements in Table 1 apply to the length and width directions for those properties where fabric direction is pertinent.

TABLE 1 Specification Requirements

Characteristics

Requirements

Woven

 

Non-flannel

Flannel

Knitted

Section

Polyester/Cotton

100 % Cotton

Flannel/Non-flannel

Breaking Force

 

 

 

 

7.1

 

CRT Method Each DirectionA

222 N (50 lbf) min

178 N (40 lbf) min

156 N (35 lbf) min

 

 

Bursting ForceA

 

 

 

222 N (50 lbf) min

7.1.2

Tear Resistance, ElmendorfA

 

 

 

 

7.1.3

 

Each Direction

7 N (1.5 lbf) min

7 N (1.5 lbf) min

7 N (1.5 lbf) min

 

 

Pilling

4.0

NA

NA

4.0

7.1.4

Dimensional Change:

 

 

 

 

7.1.5

 

Durable Press (In Each Direction)

5 % max

5 % max

3.5 % max

4 % max

 

 

Nondurable Press (Nonpreshrunk)

 

 

 

 

 

 

 

Length

8 % max

8 % max

8 % max

 

 

 

 

Width

6 % max

6 % max

6 % max

 

 

 

Preshrunk (In Each Direction)

2 % max

3 % max

3.5 % max

 

 

Laundered Appearance

Acceptable

Acceptable

Acceptable

Acceptable

7.2.1

Fabric Appearance

SA 3.0 min

SA 2.2 minB

NA

SA 3.0 min

7.1.6

Bow and Skewness

3 % max

3 % max

3 % max

3 % max

7.1.7

Colorfastness To:C

 

 

 

 

 

 

Laundering:

 

 

 

 

7.1.8.1

 

 

Alteration in Shade

Class 4 minD

Class 4 minD

Class 4 minD

Class 4 minD

 

 

 

Staining

Class 3 minE

Class 3 minE

Class 3 minE

Class 3 minE

 

Crocking:

 

 

 

 

7.1.8.2

 

Dry

Class 4 minF

Class 4 minF

Class 4 minF

Class 4 minF

 

 

Wet

Class 3 minF

Class 3 minF

Class 3 minF

Class 3 minF

 

Light (20 AATCC FU),

 

 

 

 

7.1.8.3

 

Xenon-ArcE

Step 4 minD

Step 4 minD

Step 4 minD

Step 4 minD

 

Perspiration

 

 

 

 

7.1.8.4

 

Alteration In Shade

Class 4 minD

Class 4 minD

Class 4 minD

Class 4 minD

 

 

Staining

Class 3 minE

Class 3 minE

Class 3 minE

Class 3 minE

 

Flammability

Class I

Class I

Class I

Class I

7.1.9

A There is more than one standard method that can be used to measure breaking force, bursting force, tear resistance, and lightfastness. These methods cannot be used interchangeably since there may be no overall correlation between them. See Notes 2-5 and Note 8.B Recommended requirement for Easy Care Products which must be ironed.C Class in colorfastness and 5A rating is based on a numerical scale of 5.0 for negligible color change, color transfer, or wrinkling to 1.0 for very severe color change, color transfer or wrinkling. The numerical rating in Table 1 or higher is acceptable.D AATCC Gray Scale for Color Change.E AATCC Gray Scale for Staining.F AATCC Chromatic Transference Scale.

1.4 This specification is not applicable to woven and knit products used for sheet blankets or to woven and knitted sheet products used for apparel.

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

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Published :	10/01/2013