Atomic Absorption Mass Spectrometry

Atomic Absorption Mass Spectrometry, Total:200 items.

The international standard classification for "Atomic Absorption Mass Spectrometry" includes: Woodworking machines , Cadmium, cobalt and their alloys .

The Chinese standard classification for "Atomic Absorption Mass Spectrometry" includes: Basic standards and general methods , Heavy metals and their alloys analysis method , Petroleum products in general .

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

GB/T 15337-1994 General rules for atomic absorption spectrometric analysis
GB/T 15337-2008 General rules for atomic absorption spectrometric analysis

Taiwan Provincial Standard of the People's Republic of China

CNS 11206-2002 Iron and steel─Methods for atomic absorption spectrometric analysis
CNS 11209-1995 General Rules for Chemical Analysis by Atomic Absorption Spectrophotometry

National Metrological Verification Regulations of the People's Republic of China

JJG(教委) 023-1996 Verification Regulations for Atomic Absorption Spectrometer

Professional Standard - Non-ferrous Metal

YS/T 536.4-2009 Methods for chemical analysis of bismuth - Determination of silver content - Flame atomic absorption spectrophotometric method and electrothermal atomic absorption spectrometric method

Liaoning Provincial Standard of the People's Republic of China

DB21/T 2070-2013 Chemical Analysis of Aluminosilicate Refractories by Atomic Absorption Spectrometry

Professional Standard - Petrochemical Industry

SH/T 0242-1992 Determination method for lead content of light petroleum products (atomic absorption spectrometry method)

British Standards Institution (BSI)

BS EN ISO 5961:1995 Water quality. Determination of cadmium by atomic absorption spectrometry
BS EN ISO 5961:1995(2008)*BS 6068-2.21:1995 Water quality — Determination of cadmium by atomic absorption spectrometry
BS EN 1483:2007 Water quality - Determination of mercury - Method using atomic absorption spectrometry
BS EN ISO 12020:2000(2008) Water quality - Determination of aluminium - Atomic absorption spectrometric methods
BS EN 1233:1997 Water quality. Determination of chromium. Atomic absorption spectrometric methods
BS EN ISO 12020:2000 Water quality - Determination of aluminium - Atomic absorption spectrometric methods
BS EN ISO 7980:2000 Water quality. Determination of calcium and magnesium. Atomic absorption spectrometric method
BS EN 1233:1997(2008)*BS 6068-2.38:1997 Water quality-Determination of mercury-Atomic absorption spectrometry method
BS EN ISO 7980:2000(2008)*BS 6068-2.30:1987 Water quality — feta Be Determination of calcium and magnesium — Atomic absorption spectrometric method
BS EN ISO 15586:2003(2008)*BS 6068-2.84:2003 Water quality — Determination of trace elements using atomic absorption spectrometry with graphite furnace
BS EN ISO 15586:2003 Water quality. Determination of trace elements using atomic absorption spectrometry with graphite furnace
BS EN ISO 11969:1996 Water quality. Determination of arsenic. Atomic absorption spectrometric method (hydride technique)
BS EN ISO 11969:1996(2008)*BS 6068-2.55:1996 Water quality — Determination of arsenic — Atomic absorption spectrometric method (hydride technique)
DD CEN/TS 16197:2011 Fertilizers. Determination of magnesium by atomic absorption spectrometry
PD CEN/TS 16197:2011 Fertilizers - Determination of magnesium by atomic absorption spectrometry

Danish Standards Foundation

DS 284:1988 Water quality - Chromium - Atomic absorption spectrometry in flame
DANSK DS/EN ISO 5961:1995 Water quality - Determination of cadmium by atomic absorption spectrometry
DS/EN ISO 5961:1996 Water quality - Determination of cadmium by atomic absorption spectrometry
DANSK DS/EN 1233:2000 Water quality - Determination of chromium - Atomic absorption spectrometric methods
DANSK DS/EN ISO 12020:2000 Water quality - Determination of aluminium - Atomic absorption spectrometric methods
DS/EN ISO 12020:2001 Water quality - Determination of aluminium - Atomic absorption spectrometric methods
DS/EN 1233:2000 Water quality - Determination of chromium - Atomic absorption spectrometric methods
DANSK DS/EN ISO 7980:2001 Water quality - Determination of calcium and magnesium - Atomic absorption spectrometric method
DS/EN ISO 7980:2001 Water quality - Determination of calcium and magnesium - Atomic absorption spectrometric method
DS/EN ISO 11969:2000 Water quality - Determination of arsenic - Atomic absorption spectrometric method (hydride technique)
DANSK DS/EN ISO 15586:2004 Water quality - Determination of trace elements using atomic absorption spectrometry with graphite furnace
DS/EN ISO 15586:2004 Water quality - Determination of trace elements using atomic absorption spectrometry with graphite furnace

Association Francaise de Normalisation

NF EN 1233:1996 Water quality - Chromium dosage - Atomic absorption spectrometry methods
NF EN ISO 5961:1995 Water quality - Cadmium determination by atomic absorption spectrometry
NF EN ISO 7980:2000 Water quality - Calcium and magnesium dosage - Atomic absorption spectrometry method
NF EN ISO 12020:2000 Water quality - Aluminum determination - Atomic absorption spectrometry methods
NF T90-133*NF EN 1233:1996 Water quality - Determination of chromium - Atomic absorption spectrometric methods
NF T90-113-1:2007 Water quality - Determination of mercury - Method using atomic absorption spectrometry.
NF T90-005*NF EN ISO 7980:2000 Water quality - Determination of calcium and magnesium - Atomic absorption spectrometric method
NF T90-138*NF EN ISO 12020:2000 Water quality - Determination of aluminium - Atomic absorption spectrometric methods.
NF EN 16197:2013 Fertilizers - Magnesium determination by atomic absorption spectrometry
NF EN ISO 12846:2012 Water quality - Mercury dosage - Atomic absorption spectrometry (AAS) method with and without enrichment

Korean Agency for Technology and Standards (KATS)

KS I ISO 5961:2006 Water quality－Determination of cadmium by atomic absorption spectrometry
KS M 9104-1996 Water quality-Determination of cadmium by atomic absorption spectrometry
KS I ISO 5961-2006(2016) Water quality－Determination of cadmium by atomic absorption spectrometry
KS I ISO 9174:2008 Water quality－Determination of total chromium－Atomic absorption spectrometric methods
KS M ISO 918:2017 Volatile organic liquids for industrial use－Determination of distillation characteristics
KS I ISO 5961-2021 Water quality — Determination of cadmium by atomic absorption spectrometry
KS I ISO 12020:2008 Water quality－Determination of aluminium－Atomic absorption spectrometric methods
KS I ISO 12020-2023 Water quality ― Determination of aluminium ― Atomic absorption spectrometric methods
KS M ISO 918:2007 Volatile organic liquids for industrial use－Determination of distillation characteristics
KS I ISO 5961:2021 Water quality — Determination of cadmium by atomic absorption spectrometry
KS I ISO 12020-2008(2018) Water quality－Determination of aluminium－Atomic absorption spectrometric methods
KS I ISO 7980-2023 Water quality — Determination of calcium and magnesium — Atomic absorption spectrometric method
KS I ISO 9174-2018 Water quality－Determination of total chromium－Atomic absorption spectrometric methods
KS I ISO 9174-2008(2018) Water quality－Determination of total chromium－Atomic absorption spectrometric methods
KS I ISO 7980:2007 Water quality－Determination of calcium and magnesium－Atomic absorption spectrometric method
KS I ISO 7980-2007(2017) Water quality－Determination of calcium and magnesium－Atomic absorption spectrometric method
KS M 0016-2010 General rules for atomic absorption spectrochemical analysis
KS D 2553-2015 Tantalum－Method for atomic absorption spectrometric analysis
KS I ISO 11969-2023 Water quality－Determination of arsenic－Atomic absorption spectrometric method(hydride technique)
KS E 3030-2007(2012) Atomic absorption spectrochemical analysis for iron ores
KS D 2553-2015(2020) Tantalum－Method for atomic absorption spectrometric analysis
KS E 3030-1982 Atomic absorption spectrochemical analysis for iron ores
KS D 2568-2024 Tantalum－Method for atomic absorption spectrometric analysis
KS D 2568-2019 Tantalum－Method for atomic absorption spectrometric analysis
KS D 2553-2025 Tantalum — Method for atomic absorption spectrometric analysis
KS D 2568-2008 Tantalum－Method for atomic absorption spectrometric analysis
KS I ISO 11969:2008 Water quality－Determination of arsenic－Atomic absorption spectrometric method(hydride technique)
KS D 2553-2020 Tantalum－Method for atomic absorption spectrometric analysis
KS I ISO 11969-2008(2018) Water quality－Determination of arsenic－Atomic absorption spectrometric method(hydride technique)
KS I ISO 15586-2010(2015) Water quality－Determination of trace elements using atomic absorption spectrometry with graphite furnace
KS I ISO 11969-2008(2023) Water quality－Determination of arsenic－Atomic absorption spectrometric method(hydride technique)
KS I ISO 9965-2008(2018) Water quality－Determination of selenium－Atomic absorption spectrometric method (hydride technique)
KS I ISO 9965:2008 Water quality－Determination of selenium－Atomic absorption spectrometric method (hydride technique)
KS I ISO 9965-2018 Water quality－Determination of selenium－Atomic absorption spectrometric method (hydride technique)
KS I ISO 20279:2006 Soil quality-Extraction of thallium and determination by electrothermal atomic absorption spectrometry
KS D 1659-2024 Methods for atomic absorption spectrophotometric analysis of iron and steel
KS M 0016-2010(2020) General rules for atomic absorption spectrochemical analysis
KS M 0016-1995 General rules for atomic absorption spectrochemical analysis
KS I ISO 15586:2022 Water quality ― Determination of trace elements using atomic absorption spectrometry with graphite furnace
KS I ISO 15586:2010 Water quality－Determination of trace elements using atomic absorption spectrometry with graphite furnace
KS I ISO 15586-2022 Water quality ― Determination of trace elements using atomic absorption spectrometry with graphite furnace

International Organization for Standardization (ISO)

ISO 5961:1994 Water quality; determination of cadmium by atomic absorption spectrometry
ISO 9174:1998 Water quality - Determination of chromium - Atomic absorption spectrometric methods
ISO 12020:1997 Water quality - Determination of aluminium - Atomic absorption spectrometric methods
ISO 9174:1990 Water quality; determination of total chromium; atomic absorption spectrometric methods
ISO 7980:1986 Water quality; Determination of calcium and magnesium; Atomic absorption spectrometric method
ISO 9965:1993 Water quality; determination of selenium; atomic absorption spectrometric method (hydride technique)
ISO 11969:1996 Water quality - Determination of arsenic - Atomic absorption spectrometric method (hydride technique)
ISO 20279:2005 Soil quality - Extraction of thallium and determination by electrothermal atomic absorption spectrometry
ISO 15586 Water quality - Determination of trace elements using atomic absorption spectrometry with graphite furnace
ISO 5961:1985 Water quality; Determination of cadmium; Flame atomic absorption spectrometric methods
ISO 15586:2003 Water quality - Determination of trace elements using atomic absorption spectrometry with graphite furnace

Ente Nazionale Italiano di Unificazione

UNI EN ISO 5961:1997 Water quality. Determination of cadmium by atomic absorption spectrometry.
UNI EN ISO 12020:2002 Water quality - Determination of aluminium - Atomic absorption spectrometric methods
UNI EN 1483:2008 Water quality - Determination of mercury - Method using atomic absorption spectrometry
UNI EN ISO 7980:2002 Water quality - Determination of calcium and magnesium - Atomic absorption spectrometric method
UNI ISO 9965:2009 Water quality - Determination of selenium - Atomic absorption spectrometric method (hydride technique)
UNI ISO 15586:2009 Water quality - Determination of trace elements using atomic absorption spectrometry with graphite furnace
UNI EN ISO 11969:1999 Water quality - Determination of arsenic - Atomic absorption spectrometric method (hydride technique)
EC 1-2008 UNI EN ISO 15586:2004 Water quality - Determination of trace elements using atomic absorption spectrometry with graphite furnace
UNI EN ISO 15586:2004 Water quality - Determination of trace elements using atomic absorption spectrometry with graphite furnace

The Directorate General of Specifications and Metrology (DGSM)

OS GSO ISO 12020:2013 Water quality -- Determination of aluminium -- Atomic absorption spectrometric methods
OS GSO ISO 9174:2007 Water quality – Determination of chromium – Atomic absorption spectrometric method
OS GSO ISO 7980:2013 Water quality - Determination of calcium and magnesium - Atomic absorption spectrometric method

GCC Standardization Organization

BH GSO ISO 9174:2024 Water quality – Determination of chromium – Atomic absorption spectrometric method
GSO ISO 12020:2013 Water quality -- Determination of aluminium -- Atomic absorption spectrometric methods
GSO ISO 7980:2013 Water quality - Determination of calcium and magnesium - Atomic absorption spectrometric method
BH GSO ISO 9965:2024 Water quality – Determination of selenium – Atomic absorption spectrometric method (hydride technique)

European Committee for Standardization (CEN)

EN 1483:2007 Water quality - Determination of mercury - Method using atomic absorption spectrometry
prEN 29174-1992 Water quality; determination ot total chromium; atomic absorption spectrometric method (ISO 9174:1990)
EN 1233:1996 Water Quality - Determination of Chromium - Atomic Absorption Spectrometric Methods
EN ISO 5961:1995 Water Quality - Determination of Cadmium by Atomic Absorption Spectrometry (ISO 5961 : 1994)
EN ISO 7980:2000 Water Quality - Determination of Calcium and Magnesium - Atomic Absorption Spectrometric Method

German Institute for Standardization

DIN EN ISO 12020:2000-05 Water quality - Determination of aluminium - Atomic absorption spectrometric methods (ISO 12020:1997); German version EN ISO 12020:2000
DIN EN 1233:1996-08 Water quality - Determination of chromium - Atomic absorption spectrometric methods; German version EN 1233:1996
DIN EN 1483:2007 Water quality - Determination of mercury - Method using atomic absorption spectrometry; English version of DIN EN 1483:2007-07
DIN EN 1483:1997 Water quality - Determination of mercury - Method using atomic absorption spectrometry
DIN EN 1483:2007-07 Water quality - Determination of mercury - Method using atomic absorption spectrometry
DIN EN ISO 5961:1995-05 Water quality - Determination of cadmium by atomic absorption spectrometry (ISO 5961:1994); German version EN ISO 5961:1995
DIN EN ISO 12020:2000 Water quality - Determination of aluminium - Atomic absorption spectrometric methods (ISO 12020:1997); German version EN ISO 12020:2000
DIN EN 1233:1996 Water quality - Determination of chromium - Atomic absorption spectrometric methods; German version EN 1233:1996
DIN 51401:2010-07 Atomic absorption spectrometry (AAS) - Vocabulary
DIN 51401 Beiblatt 1:2013-08 Atomic absorption spectrometry (AAS) and atomic fluorescence spectrometry (AFS) - Vocabulary; Supplement 1: Explanations
DIN EN ISO 7980:2000 Water quality - Determination of calcium and magnesium - Atomic absorption spectrometric method (ISO 7980:1986); German version EN ISO 7980:2000
DIN 51401:2016 Atomic absorption spectrometry (AAS) and atomic fluorescence spectrometry (AFS) - Vocabulary
DIN 51401 Beiblatt 1:2017-07 Atomic absorption spectrometry (AAS) and atomic fluorescence spectrometry (AFS) - Vocabulary; Supplement 1: Explanations
DIN 51401 Beiblatt 1 E:2017-02 Atomic absorption spectrometry (AAS) and atomic fluorescence spectrometry (AFS) - Vocabulary; Supplement 1: Explanations
DIN 51401:2016-04 Atomic absorption spectrometry (AAS) and atomic fluorescence spectrometry (AFS) - Vocabulary
DIN 51401 E:2015-10 Atomic absorption spectrometry (AAS) and atomic fluorescence spectrometry (AFS) - Vocabulary
DIN 51401:2016-11 Atomic absorption spectrometry (AAS) and atomic fluorescence spectrometry (AFS) - Vocabulary
DIN EN ISO 7980:2000-07 Water quality - Determination of calcium and magnesium - Atomic absorption spectrometric method (ISO 7980:1986); German version EN ISO 7980:2000
DIN EN 16197:2013-01 Fertilizers - Determination of magnesium by atomic absorption spectrometry; German version EN 16197:2012
DIN EN ISO 15586:2004 Water quality - Determination of trace elements using atomic absorption spectrometry with graphite furnace (ISO 15586:2003); German version EN ISO 15586:2003

Kingdom of Bahrain Testing and Metrology Directorate

BH GSO ISO 12020:2016 Water quality -- Determination of aluminium -- Atomic absorption spectrometric methods

COMMISSION FOR THE STANDARDS, METROLOGY AND QUALITY OF VIETNAM (STAMEQ)

TCVN 6222-2008 Water quality.Determination of chromium.Atomic absorption spectrometric methods
TCVN 6657-2000 Water quality.Determination of alumimium.Atomic absorption spectrometric methods
TCVN 6197-2008 Water quality.Determination of cadmium by atomic absorption spectrometry
TCVN 6201-1995 Water quality.Determination of calcium and magnesium.Atomic absorption spectrometric method
TCVN 6178-1996 Water quality.Determination of nitrite.Molecular absorption spectrometric method
TCVN 6626-2000 Water quality.Determination arsenic.Atomic absorption spectrometric method (hydride technique)
TCVN 6183-1996 Water quality.Determination of selenium.Atomic absorption spectrometry method (hydride technique)

Spanish Association for Standardization (UNE)

UNE-EN 1233:1997 WATER QUALITY. DETERMINATION OF CHROMIUM. ATOMIC ABSORPTION SPECTROMETRIC METHODS.
UNE-EN 1483:2007 Water quality - Determination of mercury - Method using atomic absorption spectrometry
UNE-EN ISO 5961:1995 WATER QUALITY. DETERMINATION OF CADMIUM BY ATOMIC ABSORPTION SPECTROMETRY. (ISO 5961:1994).
UNE-EN ISO 12020:2000 WATER QUALITY. DETERMINATION OF ALUMINIUM. ATOMIC ABSORPTION SPECTROMETRIC METHODS. (ISO 12020:1997)
UNE-EN ISO 7980:2000 WATER QUALITY. DETERMINATION OF CALCIUM AND MAGNESIUM. ATOMIC ABSORPTION SPECTROMETRIC METHOD. (ISO 7980:1986)
UNE-EN 16197:2013 Fertilizers - Determination of magnesium by atomic absorption spectrometry

Standards Norway

NS-EN 1233:1996 Water quality — Determination of chromium — Atomic absorption spectrometric methods
NS-EN 1483:2007 Water quality — Determination of mercury — Method using atomic absorption spectrometry
NS-EN ISO 5961:1995 Water quality — Determination of cadmium by atomic absorption spectrometry (ISO 5961:1994)
NS-EN ISO 12020:2000 Water quality — Determination of aluminium — Atomic absorption spectrometric methods (ISO 12020:1997)
NS-EN ISO 7980:2000 Water quality — Determination of calcium and magnesium — Atomic absorption spectrometric method (ISO 7980:1986)

Asociación Española de Normalización (AENOR)

AENOR UNE-EN 1233:1997 Water quality - Determination of chromium - Atomic absorption spectrometric methods
AENOR UNE-EN 1483:2007 Water quality - Determination of mercury - Method using atomic absorption spectrometry
AENOR UNE-EN ISO 5961:1995 WATER QUALITY. DETERMINATION OF CADMIUM BY ATOMIC ABSORPTION SPECTROMETRY. (ISO 5961:1994).
AENOR UNE-EN ISO 7980:2000 WATER QUALITY. DETERMINATION OF CALCIUM AND MAGNESIUM. ATOMIC ABSORPTION SPECTROMETRIC METHOD. (ISO 7980:1986)
AENOR UNE-EN 16197:2013 Fertilizers - Determination of magnesium by atomic absorption spectrometry

Finnish Standards Institute

SFS-EN 1233:1997 Water quality. Determination of chromium. Atomic absorption spectrometric methods
SFS-EN ISO 12020:2000 Water quality. Determination of aluminium. Atomic absorption spectrometric methods (ISO 12020:1997)
SFS-EN ISO 5961:1995 Water quality. Determination of cadmium by atomic absorption spectrometry (ISO 5961:1994)

Lithuanian Standards Office

LST EN 1233-2000 Water quality - Determination of chromium - Atomic absorption spectrometric methods
LST EN ISO 5961:2000 Water quality - Determination of cadmium by atomic absorption spectrometry (ISO 5961:1994)
LST EN ISO 12020:2000 Water quality - Determination of aluminium - Atomic absorption spectrometric methods (ISO 12020:1997)
LST ISO 9174:2003 Water quality. Determination of chromium. Atomic absorption spectrometric methods (idt ISO 9174:1998)
LST ISO 9965:1998 Water quality. Determination of selenium. Atomic absorption spectrometric method (hydride technique)
LST EN ISO 7980:2000 Water quality - Determination of calcium and magnesium - Atomic absorption spectrometric method (ISO 7980:1986)

Swedish Institute for Standards

SS-EN 1233:1997 Water quality - Determination of chromium - Atomic absorption spectrometric method
SS-EN ISO 5961:1995 Water quality - Determination of cadmium by atomic absorption spectrometry (ISO 5961:1994)
SS-EN ISO 12020:2000 Water quality - Determination of aluminium - Atomic absorption spectrometric methods (ISO 12020:1997)
SS-EN ISO 7980:2000 Water quality - Determination of calcium and magnesium - Atomic absorption spectrometric method (ISO 7980:1986)�
SS-EN 16197:2012 Fertilizers - Determination of magnesium by atomic absorption spectrometry

National Standardisation Body (ASRO)

STAS SR 8662-2-1997 Water quality - Manganese determination - Spectrometric method of atomic absorption
STAS SR 13315-1996 Water quality - Iron determination - Spectrometric method of atomic absorption

Austrian Standards

ONORM ISO 7980:1988 Water quality; determination of calcium and magnesium; atomic absorpüon spectrometric method
ONORM ISO 5961:1987 Water quality; determination of cadmium; jlame atomic absorption spectrometric methods
ONORM M 6603-1-1997 Water analysis - Determination of potassium and sodium by atomic absorption spectrometry
ONORM M 6604-1995 Water analysis - Determination of selenium by atomic absorption spectrometry (hydride technique)
ONORM M 6605-1992 Water quality - Determination of dissolved silver by electrothermal atomisation atomic absorption spectrometry

Standard Association of Australia （SAA）

AS 2134.1:1988 Recommended practice for chemical analysis by atomic absorption spectrometry - Flame atomic absorption spectrometry
AS 2134.3:1994(R2016) Recommended practice for chemical analysis by atomic absorption spectrometry - Vapour generation atomic absorption spectrometry
AS 2134.3:1994 Recommended practice for chemical analysis by atomic absorption spectrometry - Vapour generation atomic absorption spectrometry

Japanese Industrial Standards Committee (JISC)

JIS K 0400-50-20:1998 Water quality -- Determination of calcium and magnesium -- Atomic absorption spectrometric method
JIS K 0400-55-20:1998 Water quality -- Determination of cadmium by atomic absorption spectrometry
JIS K 0400-65-10:1998 Water quality -- Determination of total chromium -- Atomic absorption spectrometric methods
JIS H 1683:2002 Tantalum -- Method for atomic absorption spectrometric analysis
JIS G 1257:1994 Iron and steel -- Methods for atomic absorption spectrometric analysis

Indonesia Standards

SNI 06-2428-1991 Air, Metode pengujian atom dengan spektrofotometer serapan atom
SNI 13-6180-1999 Procedure for optimization of flame Atomic Absorption Spectrophotometer (AAS)

Czech Standards Institute (UNMZ)

CSN 42 0635 Cast.14-1987 Chemical analysis of non-ferrous metals and alloys. Lead. Determination of magnesium by the atomic absorption method
CSN 42 0647 Cast.9-1989 Chemical analysis of non-ferrous metals and alloys. Tungsten analysis. Determination of magnesium by atomic absorption method
CSN 42 0646 Cast.8-1989 Chemical analysis of non-ferrous metals and alloys. Molybdenum. Determination of magnesium by the atomic absorption method
CSN 42 0635 Cast.16-1987 Chemical analysis of non-ferrous metals and alloys. Lead. Determination of calcium by the atomic absorption method
CSN 42 0647 Cast.8-1989 Chemical analysis of non-ferrous metals and alloys. Tungsten. Determination of calcium by the atomic absorption method
CSN 42 0640 Cast.9-1982 Chemical analysis of non-ferrous metals and alloys. Nickel. Determination of magnesium by the atomic absorption method
CSN 42 0646 Cast.7-1989 Chemical analysis of non-ferrous metals and alloys. Molybdenum. Determination of calcium by the atomic absorption method