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EVS 668:2025

Oil shale and solid residues of its thermal processing and combustion - Determination of moisture and sample preparation procedure

General information

Valid from 01.04.2025
ICS Groups
75.160.10 Solid fuels
Directives or regulations
None
Changes from previous version
Olulised muudatused võrreldes eelmise versiooniga on järgmised: — standardi pealkirja on muudetud seoses käsitlusala laiendamisega põlevkivi termilise töötlemise ja põletamise tahkete jääkide analüüsile; — dokumendi teksti on lisatud märkused, mis käsitlevad põlevkivi termilise töötlemise ja põletamise tahkete jääkide spetsiifikat; — standardi struktuuri on muudetud seoses käsitlusala laiendamisega.

Standard history

Status
Date
Type
Name
01.04.2025
Main
EVS 668:2025
01.04.2019
Corrigendum
EVS 668:2018/AC:2019
01.03.2018
Main + corrigendum
EVS 668:2018
This Estonian standard describes two- and single-stage methods for the determination of total moisture of oil shale, a method for the determination of moisture in an analysis sample, and the procedure for preparing the samples. The standard is valid for oil shale irrespective of the location of the deposit of origin. Based on the standard, moisture is determined in a sample of trade oil shale as well as in samples taken for geological and technological research from layers, cores, tailings and other oil shale samples taken and prepared in accordance with a valid standard.

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Standard monitoring
Estonian (PDF 460 KB)

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Standards designation

EVS Estonian standard
EN European standard (published by an CEN or CENELEC)
EN ISO International standard adopted as an European standard
ISO International Organization for Standardization’s standard
IEC International Electrotechnical Commission’s standard
HD CENELEC’s harmonisation document
   
EVS-EN European standard implemented in Estonia
EVS-EN ISO International standard adopted in Europe and implemented in Estonia
EVS-EN ISO/IEC International standard/International electrotechnical standard adopted in Europe and implemented in Estonia
EVS-IEC International electrotechnical standard implemented in Estonia
EVS-ISO International standard implemented in Estonia
   
A, AMD amedment
+A a full standard plus the amendment
/A only amendment
COR, AC corrigendum
+COR a full standard plus the corrigendum
NA national annex
+NA a full standard plus the national annex
/NA only national annex
TS technical specification
TR technical report
CWA agreement, developed by a CEN or CENELEC
prEVS-EN (etc) draft standard
   
et the standard is in Estonian only
en the standard is in English only
et-en the standard is in Parallel text Estonian-English