Determination of PPO activity by catechol method

Determination of PPO activity by catechol method, Total:78 items.

The international standard classification for "Determination of PPO activity by catechol method" includes: Textiles in general , Aliphatic hydrocarbons , Products of the chemical industry in general , Aromatic hydrocarbons , Chemical analysis .

The Chinese standard classification for "Determination of PPO activity by catechol method" includes: Basic standards and general methods , Organic chemicals in general , Basic standards and general methods for dye , Basic organic chemicals , Basic standards and general methods for water treatment agent .

Shandong Provincial Standard of the People's Republic of China

DB37/T 3036-2017 Determination of catechol, resorcinol and hydroquinone in cosmetics by high performance liquid chromatography

Group Standards of the People's Republic of China

T/WSJD 18.13-2021 Determination of hydroquinone, resorcinol, catechol, p-nitrophenol and 2,4-dinitrophenol by high performance liquid chromatography for chemical factors in workplace air

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

GB/T 12702-1999 Butadiene for industrial use--Determination of tert-butyl-catechol (TBC)[4-(1,1-dimethylethyl)-1,2-benzenediol]--High performance liquid chromatographic method
GB/T 12688.8-1998 Styrene for industrial use-Determination of content of inhibitor (p-tert-butylcatechol)-Spectrophotometric method
GB/T 6020-2008 Butadiene for industrial use—Determination of tert-butyl-catechol (TBC)
GB/T 18414-2025 Textiles—Determination of chlorinated phenols and ortho-phenylphenol
GB/T 6020-1999 Butadiene for industrial use-Determination of tert-butyl-catechol(TBC)[4-(1,1-dimethylethyl)-1,2-benzenediol]-Spectrometric method
GB/T 23974-2009 Determination of the content of ortho-phenylphenol in dye products
GB/T 20386-2006 Textiles - Determination of the content of ortho-phenylphenol
GB/T 12688.7-1990 Styrene for industrial use--Determination of content of inhibitor (P-tert-butylcatechol)--Colorimetric method

Professional Standard - Petrochemical Industry

SH/T 1485.4-1995 Determination for tertiary butyl pyrocatechol content in industrial divinylbenzene - Spectrophotometric method

Professional Standard - Non-ferrous Metal

YS/T 248.2-1985 Crude lead chemical analysis method Catechol violet photometric method Determination of tin content

Professional Standard - Chemical Industry

HG/T 3525-2003 Industrial circulating cooling water-Determination of aluminium-Spectrometric method using pyrocat

Korean Agency for Technology and Standards (KATS)

KS M 1941-2009 Butadiene for industrial use－Determination of active tert-butyl-catechol(TBC)[4-(1,1-dimethylethyl)-1,2 benzenediol]－High performance liquid chromatographic method
KS I ISO 10566-2008(2023) Water quality－Determination of aluminium－Spectrometric method using pyrocatechol violet
KS I ISO 10566:2008 Water quality－Determination of aluminium－Spectrometric method using pyrocatechol violet
KS I ISO 10566-2023 Water quality－Determination of aluminium－Spectrometric method using pyrocatechol violet
KS M 1941-2002(2007) Butadiene for industrial use－Determination of active tert-butyl-catechol(TBC)[4-(1,1-dimethylethyl)-1,2 benzenediol]－High performance liquid chromatographic method
KS I ISO 10566-2008(2018) Water quality－Determination of aluminium－Spectrometric method using pyrocatechol violet
KS M 1939-2009 Butadiene for industrial use－Determination of tert-butyl-catechol(TBC)[4-(1,1-dimethylethyl)-1,2 benzenediol]－Spectrometric method
KS M 1911-2009 Phthalic anhydride for industrial use－Methods of test－Determination of phthalic anhydride content－Titrimetric method
KS M 1939-2002(2007) Butadiene for industrial use－Determination of tert-butyl-catechol(TBC)[4-(1,1-dimethylethyl)-1,2 benzenediol]－Spectrometric method
KS M 1912-2009 Phthalic anhydride for industrial use－Methods of test－Determination of maleic anhydride content－Polarographic method

South African Bureau of Standard

SANS 10566:2006 Water quality - Determination of aluminium - Spectrometric method using pyrocatechol violet

Standards Norway

NS 9023:1981 Phenol, o-cresol, m-cresol, p-cresol; cresylic acid and xylenols for industrial use — Methods of test — Part 8: Determination of o-cresol content (Cresylic acid and xylenols only)
NS 9018:1981 Phenol, o-cresol, m-cresol, p-cresol; cresylic acid and xylenols for industrial use — Methods of test — Part 3: Determination of neutral oils and pyridine bases
NS 9017:1981 Phenol, o-cresol, m-cresol, p-cresol; cresylic acid and xylenols for industrial use — Methods of test — Part 2: Determination of water — Dean and Stark method
NS 9024:1981 Phenol, o-cresol, m-cresol, p-cresol; cresylic acid and xylenols for industrial use — Method of test — Part 9: Determination of m-cresol content (cresylic acid only)
NS 9020:1981 Phenol, o-cresol, m-cresol, p-cresol; cresylic acid and xylenols for industrial use — Methods of test — Part 5: Visual test for impurities insoluble in water (Phenol only)
NS 9021:1981 Phenol, o-cresol, m-cresol, p-cresol; cresylic acid and xylenols for industrial use — Methods of test — Part 6: Test of absence of hydrogen sulphide (Cresylic acid and xylenols only)
NS 9016:1981 Phenol, o-cresol, m-cresol, p-cresol; cresylic acid and xylenols for industrial use — Methods of test — Part 1: General
NS 9022:1981 Phenol, o-cresol, m-cresol, p-cresol; cresylic acid and xylenols for industrial use — Methods of test — Part 7: Measurement of colour (Cresylic acid and xylenols only)

Ente Nazionale Italiano di Unificazione

UNI ISO 10566:2009 Water quality - Determination of aluminium - Spectrometric method using pyrocatechol violet

International Organization for Standardization (ISO)

ISO 10566:1994 Water quality - Determination of aluminium - Spectrometric method using pyrocatechol violet
ISO 1897-8:1977 Phenol, o-cresol, m-cresol, p-cresol, cresylic acid and xylenols for industrial use; Methods of test; Part VIII : Determination of o-cresol content (Cresylic acid and xylenols only)
ISO 1897-12:1983 Phenol, o-cresol, m-cresol, p-cresol, cresylic acid and xylenols for industrial use; Methods of test; Part 12 : Determination of distillation characteristics (Cresylic acid and xylenols only)
ISO 1897-3:1977 Phenol, o-cresol, m-cresol, p-cresol, cresylic acid and xylenols for industrial use; Methods of test; Part 3 : Determination of neutral oils and pyridine bases
ISO 1897-7:1977 Phenol, o-cresol, m-cresol, p-cresol, cresylic acid and xylenols for industrial use; Methods of test; Part VII : Measurement of colour (Cresylic acid and xylenols only)
ISO 1897-11:1983 Phenol, o-cresol, m-cresol, p-cresol, cresylic acid and xylenols for industrial use; Methods of test; Part 11 : Determination of crystallizing point (Excluding cresylic acid and xylenols)
ISO 1897-13:1983 Phenol, o-cresol, m-cresol, p-cresol, cresylic acid and xylenols for industrial use; Methods of test; Part 13 : Determination of residue on distillation (Cresylic acid and xylenols only)
ISO 1897-2:1977 Phenol, o-cresol, m-cresol, p-cresol, cresylic acid and xylenols for industrial use; Methods of test; Part II : Determination of water; Dean and Stark method
ISO 1897-10:1982 Phenol, o-cresol, m-cresol, p-cresol, cresylic acid and xylenols for industrial use; Methods of test; Part 10 : Determination of dry residue after evaporation on a water bath (Excluding cresylic acid and xylenols)
ISO 1897-9:1977 Phenol, o-cresol, m-cresol, p-cresol, cresylic acid and xylenols for industrial use; Methods of test; Part IX : Determination of m-cresol content (Cresylic acid only)
ISO 1897-1:1977 Phenol, o-cresol, m-cresol, p-cresol, cresylic acid and xylenols for industrial use; Methods of test; Part I : General
ISO 1897-6:1977 Phenol, o-cresol, m-cresol, p-cresol, cresylic acid and xylenols for industrial use; Methods of test; Part VI : Test for absence of hydrogen sulphide (Cresylic acid and xylenols only)
ISO 8176:1986 Butadiene for industrial use; Determination of active tert-butyl-catechol (TBC) (4-(1,1- dimethylethyl)-1,2-benzenediol); High performance liquid chromatographic method
ISO 1897-4:1977 Phenol, o-cresol, m-cresol, p-cresol, cresylic acid and xylenols for industrial use; Methods of test; Part IV : Visual test for impurities insoluble in sodium hydroxide solution (Excluding cresylic acid and xylenols)

The Directorate General of Specifications and Metrology (DGSM)

OS GSO ISO 10566:2013 Water quality -- Determination of aluminium -- Spectrometric method using pyrocatechol violet

Spanish Association for Standardization (UNE)

UNE-ISO 10566:2018 Water quality -- Determination of aluminium -- Spectrometric method using pyrocatechol violet
AENOR UNE-ISO 10566:2018 Water quality. Determination of aluminum. Spectrometric method using pyrocatechol violet.
UNE 55717:1984 SURFACE ACTIVE AGENTS. POLYGLYCOLS. DETERMINATION OF HYDROXYL NUMBER. PHTHALIC ANHYDRIDE ESTERIFICATION METHOD
AENOR UNE 70105-6:1985 Phthalic anhydride for industrial use. Determination of phthalic anhydride content. Volumetric method.

Kingdom of Bahrain Testing and Metrology Directorate

BH GSO ISO 10566:2016 Water quality -- Determination of aluminium -- Spectrometric method using pyrocatechol violet

British Standards Institution (BSI)

BS 2690-106:1979 Methods of testing water used in industry-Reactive aluminium: spectrophotometric method (catechol violet)
BS 6068-2.49:1995 Water quality. Physical, chemical and biochemical methods. Determination of aluminium. Spectrometric method using pyrocatechol violet

VN-TCVN

TCVN 6623-2000 Water quality.Determination of aluminium.Spectrometric method using pyrocatechol violet

German Institute for Standardization

DIN ISO 10566:1999 Water quality - Determination of aluminium - Spectrometric method using pyrocatechol violett

TR-TSE

TS 1961-1975 CRESYLIC ACID AND XYLENOLS FOR INDUSTRIAL USE DETERMINATION OF o-CRE?OL CONTENT
TS 1950-1975 PHENOL, o—CEESOL, m—CRESOL, p—CRESOL, CRESYLIC ACID AND XYLENOLS FOR INDUSTRIAL USE DETERMINATION OF WATER BY THE DEAN AND STARK METHOD
TS 1949-1975 PHENOL, o - CRESOL, m - CRESOL, p - CRESOL, CRESYLIC ACID AND XYLENOLS FOR INDUSTRIAL USE DETERMINATION OF VVATER BY THE KARL FISCHER METHOD
TS 1951-1975 PHENOL, o . CRESOL, m - CRESOL, p - CRESOL, CRESYLIC ACID AND XYLENOLS FOR INDUSTRIAL USE DETERMINATION OF NATURAL OILS AND PYRIDINE BASES

BE-NBN

NBN T 04-515-1988 Butadiene for industrial use- Determination of active tert-butyl-catechol (TBC)[4-(1,1-dimethyl)-1,2-benzenediol] - High performance liquid chromatographie méthode (HPLC)
NBN T 04-508-1985 Butadiene for indus trial use - Determination of tert-butyl-catechol(TBC) [4-(l,l -dimethylethyl) -1,2 benzenediol ] - Spectrometric method

Lithuanian Standards Office

LST ISO 10566:1998 Water quality. Determination of aluminium. Spectrometric method using pyrocatechol violet

American Society for Testing and Materials (ASTM)

ASTM D2120-87 Inhibitor, p-tert-Butylcatechol, in Styrene Monomer Standard Test Method
ASTM RR-D01-1016 1978 Interlaboratory Study to Establish Precision Statements for ASTM D3125, Test for Methyl Ether of Hydroquinone in Colorless Monomeric Acrylate Esters

Japanese Industrial Standards Committee (JISC)

JIS K 0400-58-10:1998 Water quality -- Determination of aluminium -- Spectrometric method using pyrocatechol violet
JIS K 6751-2:1999 Testing methods for phthalic esters -- Part 2: Determination of acidity to phenolphthalein -- Titrimetric method

Gosstandart of Russia

GOST R 70549-2022 Coal tar phenol products. Gas chromatographic method for determination of composition of phenol, о-cresol
GOST 24445.6-1992 Phthalic anhydride for industrial use. Method for determination of colour stability
GOST 24445.2-1980 Phthalic anhydride for industrial use. Methods for the determination of phthalic acid
GOST R 50484-1993 Phthalic anhydride for industrial use. Methods of test. Part 4. Determination of phthalic anhydride content. Titrimetric method
GOST R ISO 17070-2017 Leather. Chemical tests. Method for determination of tetrachlorophenol-, trichlorophenol-, dichlorophenol-, monochlorophenol-isomers and pentachlorophenol content

Association Francaise de Normalisation

NF T20-811:1983 Butadiene for industrial use. Determination of tert-butyl-catechol (tbc). 4-(1,1-dimethylethyl)-1,2 benzenediol. Spectrometric method.
NF T20-814:1987 Buadiene for industrial use. Determination of active tert-butyl-catechol (tbc). (4-(1,1-dimethylethyl)-1,2-benzenediol). High performance liquide chromatographic method.

Magyar Szabványügyi Testület

MSZ KGST 1676-1979 Determination of phthalic acid content in hydrogenated phthalic acid

CZ-CSN

CSN 83 0572-1963 Determination of bivalent phenols in phenol waste waters

PL-PKN

PN C04602-05-1989 Water and waste water Tests for phenols Determination of phenol, cresols and xylenols in water by gas chromatography

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