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  4. Standard "STN 446450"
Standard STN 446450 1.11.1997 preview

STN 446450 (446450)

Mining objekts. Counter coal dust explosion barriers



STANDARD published on 1.11.1997


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The information about the standard:

Designation standards: STN 446450
Classification mark: 446450
Catalog number: 63540
Publication date standards: 1.11.1997
SKU: NS-498975
The number of pages: 12
Approximate weight : 36 g (0.08 lbs)
Country: Slovak technical standard
Category: Technical standards STN

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The category - similar standards:

Tunnelling and tubbing equipment

Annotation of standard text STN 446450 (446450):

Táto norma stanovuje spôsob zhotovenia protivýbuchových prachových a vodných uzáverov používaných v uhoľných baniach na zamedzenie prenosu výbuchu uhoľného prachu.

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STN EN 1804-1+A1STN EN 1804-1+A1..

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STN EN 1804-2+A1STN EN 1804-2+A1..

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STN 444430STN 444430

1.4.1988

Latest update: 2025-05-19 (Number of items: 2 201 616)
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