Drug Quantitative Analysis

Drug Quantitative Analysis, Total:195 items.

The international standard classification for "Drug Quantitative Analysis" includes: Protection against crime , Textile fabrics , Metalliferous minerals , Textiles in general , Farming and forestry in general , Optical equipment , Other standards related to analytical chemistry .

The Chinese standard classification for "Drug Quantitative Analysis" includes: Crime judging technology , Chemical fibre in general , Basic standards and general methods , Heavy metal ore , Plant quarantine, pest control , Electron optics and other physical optics instrument , Electrochemical, thermochemistry and optical profile type analyzer , Ramie textile in general .

Professional Standard - Public Safety Standards

GA/T 122-1995 Technical terms of toxicological analysis
GA 132-1996 Material smoke toxicity analysis
GA/T 104-1995 Methods of qualitative analysis for morphine codeine thebaine papaverine narcotine and quantitative for morphine codeine of opium
GA/T 203-1999 Methods of qualitative and quantitative analysis for phosphamidon and monocrotophos in case samples
GA/T 189-1998 Methods of qualitative and quantitative analysis for chlorpromazine and promethazine and perphenazine in case samples
GA/T 1900-2021 Forensic sciences-General requirements for qualitative andquantitative methods of biological samples in toxicologicalanalysis
GA/T 597-2006 Qualitative and quantitative analysis for Xylazoli in poisoning samples
GA/T 103-1995 Methods of qualitative and quantitative analysis for pyrethroid insecticides in case samples
GA/T 206-1999 Methods of qualitative and quantitative analysis for cannabis samples in the illicit traffic
GA/T 208-1999 Methods of qualitative and quantitative analysis for phosphide in case samples
GA/T 205-1999 Methods of qualitative and quantitative analysis for tetramine in case samples by GC
GA/T 187-1998 Methods of qualitative and quantitative analysis for DDVP and trichorfon in case samples
GA/T 200-1998 Methods of qualitative and quantitative analysis for strychnine brucine in case samples
GA/T 102-1995 Methods of qualitative and quantitative analysis for barbiturates in case samples
GA/T 197-1998 Methods of qualitative and quantitative analysis for cocaine in the illicit traffic
GA/T 188-1998 Methods of qualitative and quantitative analysis for diazapam and chlordiazepoxide in cases samples
GA/T 101-1995 Qualitative and quantitative analysis methods for organic phosphorous pesticides in case samples
GA/T 191-1998 Compiled regulations for report of toxicological analysis
GA/T 195-1998 Methods of qualitative and quantitative analysis for methanidophos in case samples
GA/T 198-1998 Methods of qualitative and quantitative analysis for chloroquinoline in case samples
GA/T 121-1995 Qualitative and quantitative analysis for cantharidin in poisoning samples
GA/T 196-1998 Methods of qualitative and quantitative analysis for heroin in the illicit traffic
GA 101-1995 Qualitative and quantitative analysis methods for organic phosphorous pesticides in case samples

Professional Standard - Commodity Inspection

SN/T 0464-2013 Textile for import and export. Method for quantitative analysis of fiber. Polyurethane fiber mixture textiles
SN/T 4401.1-2015 Methods of qualitative and quantitative analysis for drug in clinical sample―Part 1:Ketamine
SN/T 3263-2012 Determination of aflatoxins residues in foods for export
SN/T 1206-2003 Textile - Method of quantitative chemical analysis for spandex and latex
SN/T 1648-2005 Textile - Method of quantitative analysis for water-soluble fibre mixtures textiles

Guangdong Provincial Standard of the People's Republic of China

DB44/T 2336-2021 Qualitative Analysis of Experimental Animal Viruses by PCR

Military Standard of the People's Republic of China-General Armament Department

GJB 4571-1991*GJBz 20024.2-1991 Enzymatic analysis of trace organophosphorus poisons DTNB method
GJB 4571-1991(XG1-2015) Modification sheet 1-2015 for the DTNB method for enzymatic analysis of trace organophosphorus poisons
GJB 4570-1991*GJBz 20024.1-1991 Enzymatic analysis of trace organophosphorus poisons naphthyl acetate method

Professional Standard - Non-ferrous Metal

YS/T 575.22-2006 Methods for chemical analysis of bauxite -- Determination of hydroscopic moisture in analytical samples -- Gravimetric method

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

GB/T 2910-1997 Textile--Binary fibre mixtures--Quantitative chemical analysis
GB/T 17359-2012 Microbeam analysis - Quantitative analysis using energy dispersive spectrometry
GB/T 2910.1-2009 Textiles - Quantitative chemical analysis - Part 1: General principles of testing
GB/T 18412.7-2006 Textiles―Determination of the pesticide residues―Part 7: Toxaphene
GB/T 2911-1997 Textiles--Ternary fibre mixtures--Quantitative analysis
GB/T 23633-2009 Guideline for the risk analysis of plant virus and viroid
GB/T 43449-2023 Forensic sciences—Specifications for quality control in toxicology laboratory
GB/T 3257.24-1999 Methods for chemical analysis of bauxite--Determination of hydroscopic moisture in analytical samples--Gravimetric method
GB/T 17364-1998 Non-damage quantitative analysis of gold content in gold products

Group Standards of the People's Republic of China

T/CAS ES380926001-2022 Rules for quality grading and evaluating of industrial products—Online analyzers – Online combustible and toxic gas detector
T/AHFIA 112-2024 Detection of African swine fever virus in pork products - fluorescence analysis method

Henan Provincial Standard of the People's Republic of China

DB41/T 1733-2018 Fluorescence Polarization Immunoassay for Rapid Determination of Fumonisin b1 Residue in Maize

Liaoning Provincial Standard of the People's Republic of China

DB21/T 3086-2018 Quantitative chemical analysis method of polyester-spandex blended products
DB21/T 3087-2018 Quantitative chemical analysis method of cotton-cupro fiber blended products

海关总署

SN/T 5325.3-2020 Digital PCR method for quantitative detection of foodborne viruses in export foods Part 3: Rotavirus
SN/T 5325.4-2020 Digital PCR method for quantitative detection of foodborne viruses in exported foods Part 4: Zarovirus
SN/T 5325.6-2020 Digital PCR method for quantitative detection of foodborne viruses in exported foods Part 6: Coxsackie virus
SN/T 5325.5-2020 Digital PCR method for quantitative detection of foodborne viruses in export foods Part 5: Human Astrovirus
SN/T 5325.1-2020 Digital PCR method for quantitative detection of foodborne viruses in exported foods Part 1: Norovirus
SN/T 5325.7-2020 Digital PCR method for quantitative detection of foodborne viruses in export foods Part 7: Poliovirus
SN/T 5325.2-2020 Digital PCR method for quantitative detection of foodborne viruses in export foods Part 2: Hepatitis A virus

Professional Standard - Agriculture

水产品质量安全检验手册 1.2.3.2-2005 Chapter 1 General introduction Section 2 Analysis method of aquatic product inspection 3. Chemical analysis method (2) Quantitative analysis
210药典四部-2020 3100 Assay method 3128 Determination method for molecular size distribution of antitoxin/antiserum products
249药典三部-2020 Assay method 3128 Determination of molecular size distribution of antitoxin/antiserum products
LS/T 6147-2023 Inspection of grain and oils-Determination of T-2 toxin in cerealsTime-resolved fluorescent immunochromatographic method

Fujian Provincial Standard of the People's Republic of China

DB35/T 2014-2021 Operating procedures for the analysis of drugs and their metabolites in biological samples

Professional Standard - Textile

FZ/T 01026-2017 Textiles - Quantitative chemical analysis - Multi-component fibre mixtures
FZ/T 01026-1993 Quantitative Chemical Analysis of Quaternary Fibre Mixtures
FZ/T 01026-2009 Textiles—Quantitative chemical analysis—Quaternary fibre mixtures
FZ/T 01144-2018 Textiles-Quantitative analysis of fiber-Near-infrared spectroscopy method
FZ/T 30003-2000 Method for quantitative analysis of ramie (flax hemp)cotton blended textile―Micro projection

未注明发布机构

DIN EN ISO 1833-9 E:2019-03 Quantitative Chemical Analysis of Textiles Part 9: Content Analysis of Acetate and Triacetate Fiber Blended Products (Benzyl Alcohol Method) (Draft)
DIN EN ISO 1833-9 E:2010-03 Quantitative Chemical Analysis of Textiles Part 9: Content Analysis of Acetate and Triacetate Fiber Blended Products (Benzyl Alcohol Method) (Draft)

SCC

DANSK DS/CEN/CR 13505:1999 Food analysis - Biotoxins - Criteria for analytical methods of mycotoxins
SN-CR 13505:1999 Food analysis — Biotoxins — Criteria of analytical methods of mycotoxins
SN-CEN/TR 16059:2010 Food analysis — Performance criteria for single laboratory validated methods of analysis for the determination of mycotoxins
DANSK DS/CEN/TR 16059:2011 Food analysis - Performance criteria for single laboratory validated methods of analysis for the determination of mycotoxins
UNE 40110:1994 TEXTILES. BINARY FIBRE BLENDS. QUANTITATIVE CHEMICAL ANALYSIS AND QUANTITATIVE ANALYSIS BY MANUAL SEPARATION.
BS PD ISO/TS 22176:2020 Cosmetics. Analytical methods. Development of a global approach for validation of quantitative analytical methods
AWWA ACE92149 Simulation of Compliance Choices for the Disinfection By-Products Regulatory Impact Analysis
AS 2637:1983 Aluminium ores - Determination of hygroscopic moisture in analytical samples - Gravimetric method
BS ISO 22489:2006 Microbeam analysis. Electron probe microanalysis. Quantitative point analysis for bulk specimens using wavelength-dispersive X-ray spectroscopy
DANSK DS/ISO 20705:2020 Textiles – Quantitative microscopical analysis – General principles of testing

Danish Standards Foundation

DS/CEN/CR 13505:1999 Food analysis - Biotoxins - Criteria for analytical methods of mycotoxins
DS/CEN/TR 16059:2011 Food analysis - Performance criteria for single laboratory validated methods of analysis for the determination of mycotoxins

AENOR

UNE-CR 13505:2003 Food analysis. Biotoxins. Criteria of analytical methods of mycotoxins.

German Institute for Standardization

DIN-Fachbericht 82:1999 Food analysis - Biotoxins - Criteria of analytical methods of mycotoxins; trilingual edition of CR 13505:1999
DIN 10102:1988-06 Microbiological analysis of meat and meat products; detection of clostridium botulinum and botulinum toxin
DIN EN ISO 14675:2003 Milk and milk products - Guidelines for a standardized description of competitive enzyme immunoassays - Determination of aflatoxin M1 content (ISO 14675:2003); German version EN ISO 14675:2003
DIN 10118:2004 Analysis of foodstuffs - Detection of verotoxine-forming Escherichia (E.) coli-strains (VTEC) in food derived from animals
DIN EN ISO 14675:2003-08 Milk and milk products - Guidelines for a standardized description of competitive enzyme immunoassays - Determination of aflatoxin M1 content (ISO 14675:2003); German version EN ISO 14675:2003
DIN EN ISO 20705:2020-05 Textiles - Quantitative microscopical analysis - General principles of testing (ISO 20705:2019); German version EN ISO 20705:2020

Korean Agency for Technology and Standards (KATS)

KS M 1068-2005 Qualitative/quantitative screening by XRF spectrometry
KS E ISO 331:2002 Coal－Determination of moisture in the analysis sample－Direct gravimetric method
KS K 0210-2023 Test methods for quantitative analysis of fibre mixtures of textiles — Test methods for quantitative analysis of fibre mixtures
KS D ISO 22489:2012 Microbeam analysis－Electron probe microanalysis－Quantitative point analysis for bulk specimens using wavelength-dispersive x-ray spectroscopy
KS D ISO 22489:2018 Microbeam analysis — Electron probe microanalysis — Quantitative point analysis for bulk specimens using wavelength dispersive x-ray spectroscopy
KS E ISO 331-2002(2017) Metallic and other non-organic coatings－Measurement of coating thicknesses－Fizeau multiple-beam interferometry method
KS K 0210-2018 Test methods for quantitative analysis of fibre mixtures of textiles — Test methods for quantitative analysis of fibre mixtures
KS E ISO 8557-2003(2013) Aluminium ores－Determination of hydroscopic moisture in analytical samples－Gravimetric method
KS D ISO 22489-2023 Microbeam analysis — Electron probe microanalysis — Quantitative point analysis for bulk specimens using wavelength dispersive x-ray spectroscopy

Association Francaise de Normalisation

FD V03-119*FD CEN/TR 16059:2011 Food analysis - Performance criteria for single laboratory validated of analysis for the determination of mycotoxins
NF EN ISO 14675:2003 Milk and milk products - Guidelines for a standardized description of enzyme immunoassays - Determination of aflatoxin M1 content
NF S98-103-2:2006 Sterilization of health care products - Radiation - Part 2 : establishing the sterilization dose.
NF G06-006:1979 Textiles. Sampling of textiles products for quantitative analysis and general.
FD CEN/TR 16059:2011 Analysis of food products - Performance criteria for validated single-laboratory mycotoxin analysis methods
NF X21-006:2007 Microbeam analysis - Electron probe microanalysis - Quantitative point analysis for bulk specimens using wavelength-dispersive X-ray spectroscopy.
XP ISO/TS 22176:2020 Cosmetics - Analytical methods - Development of a global approach for the validation of quantitative analytical methods
NF V04-174*NF EN ISO 14675:2003 Milk and milk products - Guidelines for a standardized description of competitive enzyme immunoassays - Determination of aflatoxin M1 content.
NF G06-006-1:2006 Textiles - Quantitative chemical analysis - Part 1 : general principles of testing.

ZA-SANS

SANS 11137-2:2007 Sterilization of health care products - Radiation Part 2: Establishing the sterilization dose
SANS 1833:1977 Textiles - Binary fibre mixtures - Quantitative chemical analysis
SANS 11137-3:2007 Sterilization of health care products - Radiation Part 3: Guidance on dosimetric aspects

RU-GOST R

GOST R ISO 11137-2-2008 Sterilization of health care products. Radiation. Part 2. Establishing the sterilization dose
GOST 33946-2016 Juice products. Gravimetric method for determination the mass fraction of ash
GOST R ISO 5088-1999 Textiles. Ternary fibre mixtures. Quantitative analysis
GOST 32835-2014 Juice products. Determination of mycotoxins by tandem high performance liquid mass spectrometry (HPLC-MS/MS)
GOST 30536-1997 Vodka and ethanol. Gazochromatography method for determination of toxic microadmixtures content
GOST 30536-2013 Vodka and ethanol from food raw material. Gas-chromatographic express-method for determination of toxic microadmixtures content
GOST ISO 1833-1-2011 Textiles. Quantitative chemical analysis. Part 1. General principles of testing
GOST R ISO 1833-1999 Textiles. Binary fibre mixtures. Quantitative chemical analysis
GOST R ISO 11137-3-2008 Sterilization of health care products. Radiation. Part 3. Guidance on dosimetric aspects

European Committee for Standardization (CEN)

CEN/TR 16059:2010 Food analysis - Performance criteria for single laboratory validated methods of analysis for the determination of mycotoxins

RO-ASRO

STAS SR ISO 8557:1994 Aluminium ores - Determination of hygroscopic moisture in analytical samples - Gravimetric method

GOST

GOST 34993-2023 Perfume and cosmetic products. Toxicological evaluation of cosmetics based on the analysis of the toxicological characteristics of its ingredients

British Standards Institution (BSI)

BS ISO 23692:2021 Microbeam analysis. Electron probe microanalysis. Quantitative analysis of Mn dendritic segregation in continuously cast steel product
BS ISO 5068-2:2007 Brown coals and lignites - Determination of moisture content - Indirect gravimetric method for moisture in the analysis sample
20/30393735 DC BS ISO 23692. Microbeam analysis. Electron probe microanalysis. Quantitative analysis of Mn dendritic segregation in continuously cast steel product
BS EN ISO 1833-1:2010 Textiles. Quantitative chemical analysis. General principles of testing
BS EN ISO 1833-1:2011 Textiles. Quantitative chemical analysis. General principles of testing
BS EN ISO 14675:2003 Milk and milk products - Guidelines for a standardized description of competitive enzyme immunoassays - Determination of aflatoxin M1 content
BS ISO 22489:2016 Microbeam analysis. Electron probe microanalysis. Quantitative point analysis for bulk specimens using wavelength dispersive X-ray spectroscopy
PD ISO/TS 22176:2020 Cosmetics. Analytical methods. Development of a global approach for validation of quantitative analytical methods
BS ISO 22489:2007 Microbeam analysis - Electron probe microanalysis - Quantitative point analysis for bulk specimens using wavelength-dispersive X-ray spectroscopy
BS EN ISO 1833-2:2010 Textiles. Quantitative chemical analysis. Ternary fibre mixtures
BS EN ISO 1833-2:2020 Textiles. Quantitative chemical analysis - Ternary fibre mixtures
BS EN ISO 1833-2:2011 Textiles. Quantitative chemical analysis. Ternary fibre mixtures
BS EN ISO 20705:2020 Textiles. Quantitative microscopical analysis. General principles of testing
BS EN ISO 1833-1:2020 Textiles. Quantitative chemical analysis - General principles of testing

GSO

GSO ISO 14675:2014 Milk and milk products -- Guidelines for a standardized description of competitive enzyme immunoassays -- Determination of aflatoxin M1 content
GSO ISO/TR 17276:2015 Cosmetics -- Analytical approach for screening and quantification methods for heavy metals in cosmetics
OS GSO ISO 14675:2014 Milk and milk products -- Guidelines for a standardized description of competitive enzyme immunoassays -- Determination of aflatoxin M1 content
BH GSO ISO 14675:2016 Milk and milk products -- Guidelines for a standardized description of competitive enzyme immunoassays -- Determination of aflatoxin M1 content
GSO ASTM D629:2014 Standard Test Methods for Quantitative Analysis of Textiles
BH GSO ASTM D629:2015 Standard Test Methods for Quantitative Analysis of Textiles
OS GSO ASTM D629:2014 Standard Test Methods for Quantitative Analysis of Textiles
GSO ISO 22489:2015 Microbeam analysis -- Electron probe microanalysis -- Quantitative point analysis for bulk specimens using wavelength-dispersive X-ray spectroscopy
BH GSO ISO 22176:2023 Cosmetics — Analytical methods — Development of a global approach for validation of quantitative analytical methods
GSO ISO 22176:2022 Cosmetics — Analytical methods — Development of a global approach for validation of quantitative analytical methods
GSO ISO 6129:2017 Chromium ores -- Determination of hygroscopic moisture content in analytical samples -- Gravimetric method
GSO 2353:2014 Determination of aflatoxinB1, and the total content of aflatoxins B1,B2 G1 and G2 in cereals, nuts and derived products — High-performance liquid chromatographic method
BH GSO ISO 22489:2017 Microbeam analysis -- Electron probe microanalysis -- Quantitative point analysis for bulk specimens using wavelength-dispersive X-ray spectroscopy
OS GSO ISO 1833:1994 Textiles - Binary fibre mixtures - Quantitative chemical analysis.
GSO ISO 1833:1994 Textiles - Binary fibre mixtures - Quantitative chemical analysis.

International Organization for Standardization (ISO)

ISO 310:1981 Manganese ores — Determination of hygroscopic moisture content in analytical samples — Gravimetric method
ISO/DIS 5533 Textiles — Quantification of carbon fibre constituent element — Elemental analyser method
ISO 14675:2003 | IDF 186:2003 Milk and milk products — Guidelines for a standardized description of competitive enzyme immunoassays — Determination of aflatoxin M1 content
ISO 5088:1976 Textiles; Ternary fibre mixtures; Quantitative analysis
ISO 14675:2003|IDF 186:2003 Guidelines for the standardized description of competitive enzyme immunoassays for determination of aflatoxin content in milk and milk products
ISO 22489:2006 Microbeam analysis - Electron probe microanalysis - Quantitative point analysis for bulk specimens using wavelength-dispersive X-ray spectroscopy
ISO 14675:2003 Milk and milk products - Guidelines for a standardized description of competitive enzyme immunoassays - Determination of aflatoxin M<(Index)1> content
ISO 22489:2016 Microbeam analysis - Electron probe microanalysis - Quantitative point analysis for bulk specimens using wavelength dispersive X-ray spectroscopy
ISO 23692:2021 Microbeam analysis - Electron probe microanalysis - Quantitative analysis of Mn dendritic segregation in continuously cast steel product
ISO 1833:1977 Textiles; Binary fibre mixtures; Quantitative chemical analysis
ISO/TS 22176:2020 Cosmetics — Analytical methods — Development of a global approach for validation of quantitative analytical methods
ISO 1833:1973 Title missing - Legacy paper document

BELST

STB 1313-2002 Raw material and food productsMethods of definition contents of toxic elements zinc, cadmium, lead and copper by stripping voltammetric analysis on analyzers type TA
STB 1314-2002 Milk and daily products. Methods of definition contents of toxic elements zinc, cadmium, lead and copper by stripping voltammetric analysis on analyzers type TA

PL-PKN

PN P04847-01-1993 Textiles. Binary fibre mixtures. Quantitative chemical analysis. General provisions
PN P04860-1989 Textiles Multicomponent fibre mixtures Quantitative chemical analysis
PN P04847-14-1986 Quantitative analysis of binary mixtures of polypropylene fibre
PN P04847-03-1986 Method for quantitative analysis of binary mixture of protein fibre

PH-BPS

PTS 52-1969 Standardization of Method of Test for Ouantitative Analysis of Textile

American Society for Testing and Materials (ASTM)

ASTM D629-99 Standard Test Methods for Quantitative Analysis of Textiles
ASTM E2882-12 Standard Guide for Analysis of Clandestine Drug Laboratory Evidence
ASTM D629-15 Standard Test Methods for Quantitative Analysis of Textiles
ASTM D629-08 Standard Test Methods for Quantitative Analysis of Textiles
ASTM E2549-14 Standard Practice for Validation of Seized-Drug Analytical Methods
ASTM E2548-07 Standard Guide for Sampling Seized Drugs for Qualitative and Quantitative Analysis
ASTM E2549-09 Standard Practice for Validation of Seized-Drug Analytical Methods
ASTM E1678-02 Standard Test Method for Measuring Smoke Toxicity for Use in Fire Hazard Analysis
ASTM E1678-21a Standard Test Method for Measuring Smoke Toxicity for Use in Fire Hazard Analysis
ASTM E2548-16 Standard Guide for Sampling Seized Drugs for Qualitative and Quantitative Analysis

YU-JUS

JUS F.S2.501-1982 Textile. Ouantitative and qualitative analysis of jute and kenaf
JUS F.S2.552-1985 Textiles. Fibres ropes forgeneralpurposes. Oualitative and guantitative analysis

KR-KS

KS D ISO 22489-2018 Microbeam analysis — Electron probe microanalysis — Quantitative point analysis for bulk specimens using wavelength dispersive x-ray spectroscopy
KS D ISO 22489-2018(2023) Microbeam analysis — Electron probe microanalysis — Quantitative point analysis for bulk specimens using wavelength dispersive x-ray spectroscopy

CH-SNV

SN 277 012-1982 PlasticsTolerances for Compression and Injection Mouldings
VSM 11551-1954 Textiles: Quantitative chemical fiber analysis. General instructions

CZ-CSN

CSN 57 0154-1986 Examination of mcat products and can- ed sterilized food. he determination of water content
CSN 56 0003-2002 The sampling method and the methods of aflatoxins analysis in food
CSN 56 0003 ZZ1-2004 The sampling method and the methods of aflatoxins analysis in food
CSN 56 0512-7-1993 Methods of milled products analysis - Part 7: Determination of moisture content
CSN 56 0116-3-1995 Methods of baked products analysis - Part 3: Determination of moisture content

IN-BIS

IS 12365-1988 Method for determination of chlorpyrifos residues in food

American National Standards Institute （ANSI)

ANSI/ASTM E1678:2010 Test Method for Measuring Smoke Toxicity for Use in Fire Hazard Analysis

US-AATCC

AATCC 20A-2007 Fiber Analysis: Quantitative

VN-TCVN

TCVN 7786-2007 Milk and milk products.Guidelines for a standardized description of competitive enzyme immunoassays.Determination of aflatoxin M1 content

Japanese Industrial Standards Committee (JISC)

JIS L 1030-2:2005 Testing methods for quantitative analysis of fibre mixtures of textiles -- Part 2: Testing methods for quantitative analysis of fibre mixtures
JIS L 1030-2:2012 Testing methods for quantitative analysis of fibre mixtures of textiles.Part 2: Testing methods for quantitative analysis of fibre mixtures

ES-UNE

UNE-EN ISO 20705:2021 Textiles - Quantitative microscopical analysis - General principles of testing (ISO 20705:2019)

SE-SIS

SIS 25 12 20-1974 Textiles. Binary fibre mixtures. Quantitative chemical analysis