Types:

I — Twisted soft multiple cord
II — Twisted bonded multiple cord
III — Bonded monocord
IV — Soft air entangled
V — Bonded air entangl

Classes:

Class 1 — Normal elongation
Class 3 — Heat stable — low shrinkag

TABLE I. Type I Class 1 Thread Requirements

Tex size

Breaking Strength LBS.

Elongation % Max

16
1.4
26
24
2.0
26
30
3.0
26
45
4.3
26
70
8.0
26
90
10.6
26
135
16.0
26
210
24
26
270
32
26
350
40
26
400
48
26
450
54
26
500
60
26
700
70
26

 

TABLE II. Type I class 3 thread requirements

Tex size

Breaking Strength LBS.

Elongation % MIN

Elongation % MAX

16
1.25
15
35
24
1.90
15
35
30
3.80
15
35
45
6.80
15
35
70
7.60
15
35
90
16.00
15
35
210
19.00
15
35
270
27.25
15
35
350
34.00
15
35
400
41.00
15
35
450
47.70
15
35

 

TABLE III. Type II class 1 thread requirements

Tex size

Breaking Strength LBS.

Elongation % Max

16
1.5
26
24
2.3
26
30
3.0
26
45
4.5
26
70
8.0
26
90
10.6
26
135
16.0
26
210
25
26
270
34
26
350
42
26
400
48
26
450
54
26
500
60
26
700
70
26

 

TABLE IV. Type III class 1 thread requirements

Tex size

Breaking Strength LBS.

Elongation % Max

16
1.4
26
24
2.6
26
30
3.0
26
45
5.3
26
70
8.0
26
90
10.6
26
135
16
26
210
24
26
270
32
26
350
40
26
400
48
26
450
54
26
500
60
26
700
70
26

 

TABLE V Type IV, soft air entangled thread requirements

Tex size

Breaking Strength LBS.

Elongation % Max

16
1.0
26
21
1.4
26
24
1.6
26
27
1.8
26
30
2.0
26
40
2.8
26
50
3.6
26
60
4.3
26
80
5.4
26
90
5.9
26
105
6.9
26

 

TABLE V Type VI, bonded entangled thread requirements

Tex size

Breaking Strength LBS.

Elongation % Max

16
1.0
26
21
1.4
26
24
1.6
26
27
1.8
26
30
2.0
26
40
2.8
26
50
3.6
26
60
4.3
26
80
5.4
26
90
5.9
26
105
6.9
26