GB/T 2441.9-2001 in English

SUPERSEDED

Determination of urea-Determination of methylenediurea content-Spectrophotometric method

Issued on:2001-07-02
Implemented on:2002-01-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $180.00
$175.00

Standard No:	GB/T 2441.9-2001
Document status:	SUPERSEDED
Superseded by:	GB/T 2441.9-2010 Determination of urea—Part 9:Methylenediurea content—Spectrophotometric method
Superseded on:	2011-01-01
Title in English:	Determination of urea-Determination of methylenediurea content-Spectrophotometric method
Title in Chinese:	尿素测定方法亚甲基二脲含量的测定分光光度法
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2001-07-02
Implemented on:	2002-01-01
ICS Classification:	65.080-Fertilizers
Chinese Classification:	G21-Chemical fertilizer and chemical soil conditioner
Professional Classification:	GB-National Standard
Related Keywords:	methylenediurea content-spectrophotometric method scopethis standard spectrophotometric method method naphthalene disulfonic acid disodium salt methylene diurea
Related Topics:	Spectrophotometric testing of cobalt content Water-Photometric Determination of Cyanuric Acid Content Determination method of imine content Lufenuron content detection method Determination of copper element by spectrophotometry Dimethylurea Dimethylurea Urea spectrophotometry Dimethylurea detection Molybdenum Determination Methylene Blue Spectrophotometric Method Naphthyl urea Method for Determination of Cadmium by Spectrophotometry Thiourea Spectrophotometry - Ruthenium Spectrophotometric determination of sulfo groups Spectrophotometric Determination of Methylene Blue Method for Determination of Content by Ultraviolet Spectrophotometry gb/t2441.9 Determination of naphthalene content by spectrophotometry Is the content determined by polarimetry? Detection method of dimethylurea Dipentamethylene urea Gas phase detection of methyl urea Spectrophotometric content determination method Urea UV spectrophotometry Urea group detection method Dimethylurea Toxin Photometry cod determination + spectrophotometry Dimethylurea content Dimethyl Fluorescence The detection method of dimethylurea Spectrophotometer to measure copper element photometric toxin GBT2441.9 GB/T 2441.9-2001 GB/T 2441.9-2010 Industrial oxidation production method of dimethyl sulfoxide Vitamin C content determination by UV spectrophotometry Determination method of beryllium Spectrophotometry Commonly used methods for determining drug content using UV spectrophotometry Establishment and verification of method for determination of drug content by UV spectrophotometry Determination method of methylene blue content Dissolution determination method second method Spectrophotometric method for measuring solid nitrogen content Nitromethane content determination method Validation of UV spectrophotometric content determination methodology Detection method of dimethylurea Dimethylurea quality Method for detecting methylnaphthalene with fluorescence spectrophotometer Luciferase expression assay method Method for determination of amino content using cupric chloride method How to identify urea Urea concentration detection method Determination method of photosynthetic pigment content in ethanol Urease activity determination method spectrophotometry Spectrophotometric method for measuring oil content Spectrophotometric determination of chromium in urine Methods for determination of antibiotic content Dialkyl thiourea content test Determination method for content of methylhydrazine solution Spectrophotometric determination of nickel in urine Trimethylurea analytical method Methylene blue measurement method Spectrophotometric method for determination of cadmium Method for determining the purity of methylene blue Determination method of dimethyl sulfone content Urine routine histamine content determination method Method for determination of histamine content in urine

《GB/T 2441.9-2001尿素测定方法亚甲基二脲含量的测定分光光度法》由TC105（全国肥料和土壤调理剂标准化技术委员会）归口，主管部门为中国石油和化学工业联合会。
本标准是GB/T 2441《尿素测定方法》的第9部分。
本标准规定了用萘二磺酸二钠盐变色酸分光光度法测定尿素中亚甲基二脲含量。
本标准仅适用于尿素中含少量亚甲基二脲含量的测定。

Scope

This standard specifies the spectrophotometric method to determine the content of methylene diurea in urea by naphthalene disulfonic acid disodium salt (chromotropic acid). This standard is only applicable to the determination of a small amount of methylene diurea in urea.

More samples: YD/T 3934-2021 JGJ 94-2008 DL/T 368-2010

Sample only — not a preview of GB/T 2441.9-2001

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