—   —  —  12.4.177-89 . .


12.4.177-89 . .

12.4.177-89 . .

30 1989 . N 3254
12.4.177-89
" . . "

Occupational safety standards system. Personal foot protection means against punctured injuries. General requirements and test method for resistance to puncture

1 1990 .

12.4.057-78

.

1.

1.1. .

1.2. 1200 .

2.

2.1.

(, , .) .

2.2.

1) , 1% .

2) , , . (250, 5) .

3) (. 1), , 59...60 HRC. Rmax=0, 1 L = 8 2789.

2.3.

2.3.1. ().

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2.3.2. , .

2.3.3. 20 , - 30 .

2.3.4. (713) /.

2.3.5. , .

2.3.6. . 1200 .

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