관심표준 등록 : 표준업데이트 시 알림을 받을 수 있습니다.
PDF : 직접 파일 다운로드 및 인쇄 (마이페이지 확인)
PRINT : 인쇄본 우편발송, 2~3일 소요(PDF파일 미제공)
표준
판매
Cement — Test methods — Part 2: Chemical analysis by X-ray fluorescence
| 분야 | ISO/TC 74 : Cement and lime |
|---|---|
| 적용범위 | ISO 29581-2:2010 describes a performance-based method for the chemical analysis of cement for SiO2, Al2O3, Fe2O3, CaO, MgO, SO3, K2O, Na2O, TiO2, P2O5, Mn2O3, SrO, Cl and Br using X-ray fluorescence (XRF). It can be applied to other relevant elements when adequate calibrations have been established. ISO 29581-2:2010 describes an alternative method for analyses of cement for conformity and information purposes, based on beads of fused sample and analytical validation using certified reference materials, together with performance criteria. A method based on pressed pellets of unfused sample can be considered as equivalent, providing that the analytical performance satisfies the same criteria. The use of fused beads generally improves the accuracy of analysis for non-volatile elements since it eliminates variability arising from differences in mineralogical forms or oxidation states. Pressed pellets generally improve the accuracy of analysis for volatile elements and can give adequate accuracy for the routine analysis of non-volatile elements. The presence of sulfide in a sample also leads to restrictions on the scope of the analysis that can be undertaken using the XRF technique based upon fused beads. In particular, sulfate (SO3) cannot be determined directly from such a fused bead because of the contribution to the analysis from the unknown amount of sulfide. In addition, sulfide cannot be determined directly (or accurately, indirectly) because of the contribution of the unknown amount of sulfate to the analysis and from the possibility that some sulfide can be lost by volatilization during fusion. Consequently, the method of ISO 29581-1, included as Annex D of ISO 29581-2:2010, is the reference method for determining the sulfate content of samples containing sulfide species. Other methods can be used, provided they are calibrated, either against the reference method or against internationally accepted reference materials, in order to demonstrate their equivalence. In the case of dispute, unless otherwise agreed by all parties, only the reference method in ISO 29581-1 can be used. ISO 29581-2:2010 describes methods that apply principally to cements, but which can also be applied to their constituent materials and to other materials, the standards for which call up these methods. |
| 국제분류(ICS)코드 | 91.100.10 : 시멘트. 석고. 모르타르 |
| 페이지수 | 30 |
| Edition | 1 |
| No. | 표준번호 | 표준명 | 발행일 | 상태 |
|---|---|---|---|---|
| 1 | ISO 29581-2:2010 | Cement — Test methods — Part 2: Chemical analysis by X-ray fluorescence | 2010-02-18 | 표준 |
ISO 29581-1:2009 - Cement — Test methods — Part 1: Analysis by wet chemistry 상세보기
GB/T 17418.2-2010 - Methods for analysis of noble metals in geochemical samples—Part 2:Determination of platinum and rhodium content—Preconcentration by thiourea-catalytic polarographic method 상세보기
GB/T 17418.1-2010 - Methods for analysis of noble metals in geochemical samples—Part 1:General rules and regulations 상세보기
GB/T 17418.7-2010 - Methods for analysis of noble metals in geochemical samples—Part 7:Determination of platinum group elements—By nickel sulfide fire assay-inductively coupled plasma mass spectrometry 상세보기
GB/T 23277-2009 - Chemical analysis methods of catalysts containing precious metals—Determination of platinum,palladium and rhodium in automobile exhaust-purifying catalysts—Spectrophotometry 상세보기
GB/T 5195.2-2006 - Fluorspar—Determination of carbonate content 상세보기
IEC TS 63134:2020 - Active assisted living (AAL) use cases 상세보기
IEC 60034-5:2020 RLV - Rotating electrical machines - Part 5: Degrees of protection provided by the integral design of rotating electrical machines (IP code) - Classification 상세보기
KS B ISO TS 25740-1 - 에스컬레이터 및 무빙워크에 대한 안전요건 — 제1부: 세계공통 필수 안전요건(GESRs) 상세보기
KS B ISO TS 8100-21 - 승객 및 화물 운송용 엘리베이터 —제21부: 세계공통 필수안전요건(GESRs)을 충족하는 세계공통 안전 파라미터(GSPs) 상세보기
KS C IEC TS 62872 - 산업 시설과 스마트 그리드 사이의 산업 공정 측정, 제어 및 자동화 시스템 인터페이스 상세보기
KS표준
핸드북
