Mass spectrum is 18 more than molecular weight

Mass spectrum is 18 more than molecular weight, Total:54 items.

The international standard classification for "Mass spectrum is 18 more than molecular weight" includes: Metrology and measurement. Physical phenomena (Vocabularies) , Other non-ferrous metals and their alloys , Testing of metals , Electronic components in general , Chemical analysis , Chemical analysis of metals , Iron ores , Aluminium and aluminium alloys , Cadmium, cobalt and their alloys , Protection against crime .

The Chinese standard classification for "Mass spectrum is 18 more than molecular weight" includes: Basic standards and general methods , Rare refractory metals and their compounds , Semimetal and semiconductor material analysis method , Electronic element in general , Basic standards and general methods , Iron ore , Light metals and their alloys analysis method , Heavy metals and their alloys analysis method , Crime judging technology .

Anhui Provincial Standard of the People's Republic of China

DB34/T 2994-2017 Determination of 18 Polycyclic Aromatic Hydrocarbons in Carbon Black by Gas Chromatography-Mass Spectrometry

Jiangsu Provincial Standard of the People's Republic of China

DB32/T 1985-2012 Determination of 18 Polycyclic Aromatic Hydrocarbons in Marine Organisms by Gas Chromatography-Mass Spectrometry

General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China

GB/T 29858-2013 Standard guidelines for molecular spectroscopy multivariate calibration quantitative analysis
GB/T 4324.18-2012 Methods for chemical analysis of tungsten - Part 18: Determination of potassium content - Flame atomic absorption spectrometry
GB/T 29784.2-2013 Determination of polycyclic aromatic hydrocarbons in electrical and electronic products—Part 2:Gas chromatographic method with mass spectrometric detection
GB/T 24582-2023 Test method for measuring surface metal impurity content of polycrystalline silicon—Acid extraction-inductively coupled plasma mass spectrometry method
GB/T 29784.3-2013 Determination of polycyclic aromatic hydrocarbons in electrical and electronic products—Part 3:Liquid chromatography-mass spectrometry
GB/T 31231-2014 Determination of zinc and lead isotopic ratios in aqueous solution. Multiple-collectors inductively coupled plasma mass spectrometry

Professional Standard - Agriculture

JB/T 51220.1-1994 Compound and specific gravity seed cleaning machine product quality classification and other quality indicators

国家市场监督管理总局、中国国家标准化管理委员会

GB/T 40129-2021 Surface chemical analysis—Secondary ion mass spectrometry—Calibration of the mass scale for a time-of-flight secondary ion mass spectrometer
GB/T 37049-2018 Test method for the content of metal impurity in electronic grade polysilicon—Inductively coupled-plasma mass spectrometry method
GB/T 6730.81-2020 Iron ores—Determination of multiple trace elements—Inductively coupled plasma mass spectrometric method

Group Standards of the People's Republic of China

T/CNIA 0017-2019 Determination of Impurity Content in Chlorosilanes for Polysilicon by Inductively Coupled Plasma Mass Spectrometry
T/GRM 045-2022 Determination of Uranium content and high-precision isotope ratio (238U/235U) in carbonates by multi-collector inductively coupled plasma mass spectrometry
T/SATA 021-2021 Determination of multiclass drug residues in aquatic products by high performance liquid chromatography-mass spectrometry/mass spectrometry
T/GDSES 14-2024 Determination of lead isotopic ratios in soil and sediment—Multiple-collectors inductively coupled plasma mass spectrometry
T/XZYC 0005-2024 Code of practice for quality classification of Polygomalum cyrlonema Hua
T/GDSES 15-2024 Determination of thallium isotopic ratios in soil and sediment— Multiple-collectors inductively coupled plasma mass spectrometry

海关总署

SN/T 0500-2022 Determination of dodine residue in fruits for export LC-MS/MS Method

国家质量监督检验检疫总局

SN/T 4886-2017 Determination of multi-pesticide residues in dried fruit for export—LC-MS/MS method

Professional Standard - Non-ferrous Metal

YS/T 739-2010 Determination of cryolite rate and main components of electrolyte—X-ray fluorescence spectrometric analysis method
YS/T 281.18-2011 Methods for chemical analysis of cobalt- Part 18:Determination of sodium content-Flame atomic absorption spectrometery

Professional Standard - Public Safety Standards

GA/T 1613-2019 Forensic sciences—Examination methods for lidocaine,ropivacaine and bupivacaine in biological samples—GC-MS and LC-MS

Professional Standard - Nuclear Industry

EJ/T 842-1994 Zinc Isotope Ratio and Zinc Content Measurement Double Dilution Mass Spectrometry

Professional Standard - Commodity Inspection

SN/T 2593.2-2010 Determination of polycyclic aromatic hydrocarbons in electrical and electronic equipment—Part 2:Gas chromatography-mass spectrometry
SN/T 2005.2-2005 Determination of polybrominated biphenyls and polybrominated diphenyl ethers in electrical and electronic products - Part 1: Gas chromatography - mass spectrometry
SN/T 3467.1-2013 Determination of polychlorinated naphthalenes in electrical and electronic products-Gas chromatorgaphy-mass spectrometry

Professional Standard - Aviation

HB 7716.18-2022 Spectrometric analysis of titanium alloys-Part 18: Determination of lithium, lead content-Inductively coupled plasma atomicemission spectrometric method

Yunnan Provincial Standard of the People's Republic of China

DB53/T 501-2013 Inductively Coupled Plasma Mass Spectrometry for Determination of Trichlorosilane Impurity Element Content in Polysilicon

GSO

BH GSO ISO 23812:2016 Surface chemical analysis -- Secondary-ion mass spectrometry -- Method for depth calibration for silicon using multiple delta-layer reference materials
OS GSO ISO 23812:2013 Surface chemical analysis -- Secondary-ion mass spectrometry -- Method for depth calibration for silicon using multiple delta-layer reference materials
GSO ISO 13084:2013 Surface chemical analysis -- Secondary-ion mass spectrometry -- Calibration of the mass scale for a time-of-flight secondary-ion mass spectrometer
BH GSO ISO 13084:2016 Surface chemical analysis -- Secondary-ion mass spectrometry -- Calibration of the mass scale for a time-of-flight secondary-ion mass spectrometer
OS GSO ISO 13084:2013 Surface chemical analysis -- Secondary-ion mass spectrometry -- Calibration of the mass scale for a time-of-flight secondary-ion mass spectrometer
GSO ISO 18287:2013 Soil quality -- Determination of polycyclic aromatic hydrocarbons (PAH) -- Gas chromatographic method with mass spectrometric detection (GC-MS)

British Standards Institution (BSI)

BS DD ENV 12142:1997 Method for determination of stable hydrogen isotope ratio ( 2H/ 1H) of water from fruit juices, using isotope ratio mass spectrometry
BS DD ENV 12141:1997 Method for determination of stable oxygen isotope ratio ( 1 8O/ 1 6O) of water from fruit juices, using isotope ratio mass spectrometry
BS DD ENV 12140:1997 Method for determination of stable carbon isotope ratio ( 1 3C/ 1 2C) of sugars from fruit juices, using isotope ratio mass spectrometry
BS ISO 16564:2004 Rubber, raw natural - Determination of average molecular mass and molecular-mass distribution by size exclusion chromatography (SEC)
BS ISO 13084:2018 Surface chemical analysis. Secondary ion mass spectrometry. Calibration of the mass scale for a time-of-flight secondary ion mass spectrometer
BS ISO 13084:2011 Surface chemical analysis. Secondary-ion mass spectrometry. Calibration of the mass scale for a time-of-flight secondary-ion mass spectrometer

YU-JUS

JUS C.A1.546-1990 Hardmetals. Chemical analysis by flame atomic absorption spectrometry. Determi- natlon of chromium In ctmtents from 0,01 to 2 % (m/m)

International Organization for Standardization (ISO)

ISO/TS 22933:2022 Surface chemical analysis — Secondary ion mass spectrometry — Method for the measurement of mass resolution in SIMS
ISO 16564:2004 Rubber, raw natural - Determination of average molecular mass and molecular-mass distribution by size exclusion chromatography (SEC)
ISO 13084:2011 Surface chemical analysis - Secondary-ion mass spectrometry - Calibration of the mass scale for a time-of-flight secondary-ion mass spectrometer

RU-GOST R

GOST R 51458-1999 Cheese and processed cheese products. Determination of mass percent of total phosphorus. Molecular absorption spectrometric method

Association Francaise de Normalisation

NF ISO 23812:2009 Surface Chemical Analysis - Secondary Ion Mass Spectrometry - Method for Depth Calibration for Silicon Using Multiple Delta Layer Reference Materials

CU-NC

NC 26-119-4-1986 Drugs. "Bisacodilo" Tablets Quality Specifications

NL-NEN

NEN-ISO 7627-6:1993 Hardmetals. Chemical analysis by flame atomic absorption spectrometry. Part 6: Determination of chromium in contents from 0,01 to 2 % (m/m) (ISO 7627-6:1985)

KR-KS

KS I ISO 18287-2018(2024) Soil quality — Determination of polycyclic aromatic hydrocarbons(PAH) — Gas chromatographic method with mass spectrometric detection(GC-MS)

Korean Agency for Technology and Standards (KATS)

KS M ISO 16564:2007 Rubber, raw natural－Determination of average molecular mass and molecular－mass distribution by size exclusion chromatography(SEC)
KS M ISO 16564-2007(2017) Rubber, raw natural－Determination of average molecular mass and molecular－mass distribution by size exclusion chromatography(SEC)
KS M ISO 16564-2007(2022) Rubber, raw natural－Determination of average molecular mass and molecular－mass distribution by size exclusion chromatography(SEC)

German Institute for Standardization

DIN V ENV 12141:1996 Fruit and vegetable juices - Determination of the stable oxygen isotope ratio (<(hoch)18>O/<(hoch)16>O) of water from fruit juices - Method using isotope ratio mass spectrometry; German version ENV 12141:1996

Others: Mass spectrum is 18 more than molecular weight,Mass spectrum molecular weight more than 18,Mass spectrum molecular weight more than 18