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  4. Standard "ČSN 134509-2"
Standard ČSN 134509-2 4.7.1985 preview

ČSN 134509-2 (134509)

Method for measuring of control valves. Sizing equations for incompressible fluids flow



STANDARD published on 4.7.1985


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The information about the standard:

Designation standards: ČSN 134509-2
Classification mark: 134509
Catalog number: 25122
Publication date standards: 4.7.1985
SKU: NS-119278
The number of pages: 16
Approximate weight : 48 g (0.11 lbs)
Country: Czech technical standard
Category: Technical standards ČSN

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The category - similar standards:

Pressure regulators

Annotation of standard text ČSN 134509-2 (134509):

Vztahy uvedené v této normě jsou odvozeny z Beznoulliho rovnice pro newtonské nestlačitelné tekutiny. ČSN 13 4509-2 byla schválena 4.7.1985 a nabyla účinnosti od 1.7.1987.

"Změnou a)-7/1989" se s účinností od 1.9.1989 provádí v normě několik změn

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ČSN EN 849ČSN EN 849

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ČSN EN 850ČSN EN 850

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Latest update: 2025-06-16 (Number of items: 2 204 817)
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