NBSHT0950-2017 English PDF

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NBSHT0950-2017: Standard test method for determination of lanthanum oxide and cerium oxide in catalytic cracking catalysts by X-ray fluorescence spectrometry(XRF)
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
NB/SH/T 0950-2017	209	Add to Cart	3 days	Standard test method for determination of lanthanum oxide and cerium oxide in catalytic cracking catalysts by X-ray fluorescence spectrometry(XRF)	Valid

Similar standards

GB/T 37354   GB/T 34248   HG/T 2976   NB/SH/T 0951   NB/SH/T 0952   NB/SH/T 0943   

Basic data

Standard ID: NB/SH/T 0950-2017 (NB/SH/T0950-2017)
Description (Translated English): Standard test method for determination of lanthanum oxide and cerium oxide in catalytic cracking catalysts by X-ray fluorescence spectrometry(XRF)
Sector / Industry: Energy Industry Standard (Recommended)
Classification of Chinese Standard: G74
Classification of International Standard: 71.100.99
Word Count Estimation: 9,937
Date of Issue: 2017-12-27
Date of Implementation: 2018-06-01
Quoted Standard: GB/T 6379.2; GB/T 6682-2008; GB/T 16484.3; NB/SH/T 0863; NB/SH/T 0960; ASTM D5258; ASTM D8088
Regulation (derived from): National Energy Administration Announcement No. 13 of 2017
Issuing agency(ies): National Energy Administration
Summary: This standard specifies the content of rare earth lanthanum oxide (La2O3) and cerium oxide (CeO2) in catalytic cracking catalysts by X-ray fluorescence spectrometry (XRF). This standard applies to catalytic cracking fresheners, balance agents l and spent agents. The measured rare earth yttrium oxide and yttrium oxide have a mass fraction ranging from La2O3: 0.10% to 6.0%; CeO2: 0.10% to 4.0%. For samples with cerium oxide and cerium oxide content exceeding this mass fraction, although according to this standard, The test procedure is performed, but the precision may not be applicable. When the elemental composition of the sample is significantly different from the elemental composition of the standard calibration sample used to establish the calibration curve, the precautions and recommendations in Chapter 5 should be observed or the analysis results may be disturbed.

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