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ČSN P CEN/TS 17693-1 (721020)
Earthworks - Soil treatment tests - Part 1: pH-test for determination of the lime requirement of soils for stabilization (Lime Fixation Point LFP, Lime Modification Optimum LMO)
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STANDARD published on 1.4.2022
The information about the standard:
Designation standards: ČSN P CEN/TS 17693-1
Classification mark: 721020
Catalog number: 514176
Publication date standards: 1.4.2022
SKU: NS-1052606
The number of pages: 20
Approximate weight : 60 g (0.13 lbs)
Country: Czech technical standard
Category: Technical standards ČSN
The category - similar standards:
Other standards related to soil qualityEarthworks. Excavations. Foundation construction. Underground works
Annotation of standard text ČSN P CEN/TS 17693-1 (721020):
This document specifies requirements for design, calculation and installation of factory made thermal insulated bonded single and twin pipe systems for buried hot water networks for continuous operation with treated water at various temperatures up to 120 °C and occasionally peak temperatures up to 140 °C for maximum 300 h/a, and maximum internal pressure 2,5 MPa. Flexible pipe systems according to the EN 15632 series are not under the scope of this standard. The standard EN 13941, Design and installation of thermal insulated bonded single and twin pipe systems for directly buried hot water networks consists of two parts: a) EN 13941 1: Design; b) EN 13941 2: Installation. The requirements in this part, EN 13941 2, form a unity with those of EN 13941 1. The principles of the standard may be applied to thermal insulated pipe systems with pressures higher than 2,5 MPa, provided that special attention is paid to the effects of this higher pressure. Adjacent pipes, not buried, but belonging to the network (e.g. pipes in ducts, valve chambers, road crossings above ground etc.) may be designed and installed according to this standard. This standard presupposes the use of treated water, which by softening, demineralization, de-aeration, adding of chemicals, or otherwise has been treated to effectively prevent internal corrosion and deposits in the pipes. NOTE - For further information on water qualities to be used in district heating pipe systems, see bibliographic entry [8]. This document is not applicable for such units as: a) pumps; b) heat exchangers; c) boilers, tanks; d) systems behind domestic substations
Preview of the standard ČSN P CEN/TS 17693-1 (721020)
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