ASTM D1683/D1683M-17e1 PDF

1.1 This test method measures the sewn seam strength in woven fabrics by applying a force perpendicular to the sewn seams.

1.1.1 The axis perpendicular to the sewn seam can represent either the warp yarn axis or filling yarn axis, the same axis tested when using grab Test Method D5034.

1.1.1.1 This test method is applicable to sewn seams obtained from a previously sewn article or seams sewn with fabric samples using one of two specific seam assemblies as shown in Table 1.

Fabric Mass: ≤ 4 oz/yd² [130 g/m²]

 

Procedure A

Procedure B

Mass

up to 4 oz/yd² [130 g/m²]

up to 4 oz/yd² [130 g/m²]

Seam allowance

13 mm [0.5 in.]

13 mm [0.5 in.]

Needle:

 Size

Metric 90 [0.036 in.]

Metric 90 [0.036 in.]

 Finish

chrome

chrome

 Point

thin ball (No. 1/No. 23)

thin ball (No. 1/No. 23)

Sewing thread size:

 Spun Polyester

Tex 40

Tex 40

 Polyester-Core

Tex 40

Tex 40

Seam Type

Ssa-1

Ssa-1

Stitch Type

301

401

Stitch Density

4.7 ± 1/2 stitches per centimetre

4.7 ± 1/2 stitches per centimetre

 

[12 ± 1/2 stitches per inch]

[12 ± 1/2 stitches per inch]

Fabric Mass: > 4 oz/yd² [130 g/m²] ≤ 8 oz/yd² [270 g/m²]

 

Procedure A

Procedure B

Mass

4 oz/yd² [130 g/m²] up to 8 oz/yd² 270 g/m²

4 oz/yd² [130 g/m²] up to 270 g/m2 [8 oz/yd² ]

Seam Allowance

13 mm [0.5 in.]

13 mm [0.5 in.]

Needle:

 

 

 Size

Metric 110 [0.044 in.]

Metric 110 [0.044 in.]

 Finish

chrome

chrome

 Point

ball

ball

Sewing Thread:

 Spun Polyester

Tex 60

Tex 60

 Polyester-Core

Tex 60

Tex 60

Seam type

SSa-1

SSa-1

Stitch type

301

401

Stitch density

3.1 ± 1/2 stitches per centimetre

3.1 ± 1/2 stitches per centimetre

 

[8 ± 1/2 stitches per inch]

[8.5 ± 1/2 stitches per inch]

Fabric Mass: > 8 oz/yd2 [270 g/m²] ≤ 12 oz/yd2 [405 g/m²]

Mass

8 oz/yd2 [270 g/m²] up to 12 oz/yd2 [405 g/m²]

8 oz/yd2 [270 g/m²] up to 12 oz/yd2 [405 g/m²]

Seam allowance

13 mm [0.5 in.]

13 mm [0.5 in.]

Needle:

 Size

Metric 120

Metric 120

 Finish

chrome

chrome

 Point

ball

ball

Sewing thread size:

 Spun Polyester

Tex 80

Tex 80

 Polyester-Core

Tex 80

Tex 80

Seam type

Ssa-1

SSa-1

Stitch type

301

401

Stitch density

3.1 ± 1/2 stitches per centimetre

3.1 ± 1/2 stitches per centimetre

 

[8 ± 1/2 stitches per inch]

[8.5 ± 1/2 stitches per inch]

(A) A complete description of seam types and stitch types can be found in Practice D6193.

Note 1: When the performance of a woven textile structure requires data to indicate the maximum seam strength that will result in the failure of fabric on either side of seam, the standard seam can be changed to use the Lapped seam type construction with two or more rows of stitching: Lsc-2; Lsc-3; Lsc-4; and the maximum number of stitches per inch that can be used. (See Practice D6193.)

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Published :	03/01/2017