GB/T 25011-2010 English PDF

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GB/T 25011-2010: Test method and determination for DDT content of marine antifouling paints
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 25011-2010	139	Add to Cart	3 days	Test method and determination for DDT content of marine antifouling paints	Valid

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Basic data

Standard ID: GB/T 25011-2010 (GB/T25011-2010)
Description (Translated English): Test method and determination for DDT content of marine antifouling paints
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: U05
Classification of International Standard: 47.020.05
Word Count Estimation: 6,622
Date of Issue: 2010-09-02
Date of Implementation: 2010-12-01
Quoted Standard: GB/T 3186
Regulation (derived from): National Standard Approval Announcement 2010 No.4 (Total No.159)
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the determination of DDT in marine antifouling paints (referred to DDT, including isomers and their derivatives) content by gas chromatography reagents, test procedure, , equipment, sampling and test reports results to determine the applicable standard. Determination of DDT levels in marine antifouling paints. DDT is also applicable to recognition as a biocide in antifouling paints.

GB/T 25011-2010: Test method and determination for DDT content of marine antifouling paints

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Test method and determination for DDT content of marine antifouling paints ICS 47.020.05 U05 National Standards of People's Republic of China Test and Judgment of DDT Content in Ship Antifouling Paint 2010-09-02 release 2010-12-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People 's Republic of China China National Standardization Management Committee released

Foreword

This standard is proposed by China Shipbuilding Industry Corporation. This standard is nationalized by the National Marine Ship Standardization Technical Committee Subcommittee on Marine Materials Subcommittee (SAC/TC12/SC4). The main drafting unit of this standard. China Shipbuilding Industry Corporation No. 725 research institute, Shanghai Kaolin paint factory, naval equipment technology research Institute of Environmental Protection, Tsinghua University, Ministry of Environmental Protection. The main drafters of this standard. Tao Nai-wang, Du Weina, Cao Jingyi, Huang Jun, Zhou Yunrui, Huang Ting, Li Yanwen. Test and Judgment of DDT Content in Ship Antifouling Paint

1 Scope

This standard specifies the determination of DDT (including DDT, including isomers and their derivatives) in marine antifouling paints by gas chromatography Reagents, equipment, sampling, test procedures, the results of the decision and test reports. This standard applies to the determination of DDT in ship antifouling paint, and it is also applicable to the ship antifouling paint which recognizes DDT as biocide.

2 normative reference documents

The terms of the following documents are hereby incorporated by reference into this standard. Whichever is the date of the reference file, which is followed by all (Excluding corrigenda) or revisions do not apply to this standard, however, encourage the parties to reach an agreement under this standard Whether you can use the latest version of these files. For undated references, the latest edition applies to this standard. GB/T 3186 Sampling of raw materials for paints, varnishes and varnishes and varnishes (GB/T 3186-2006, ISO 15528..2000, IDT) Basic principles The test method is mainly based on a gas chromatograph with an electron capture detector for determination. Electron capture detector is a selective detector, the halogen, S, P, N, O negative negative elements of the material, a great response, and the Non-electronegative substances, the response is very small. DDT with a strong negative charge of chlorine, the use of electronic capture detector this feature can be detected A small amount of DDT (including four forms, p, p'-DDE, o, p'-DDT, p, p'-DDD and p, p'-DDT). In this standard, samples were extracted with pure n-hexane, and 14% propyl cyanonitrile and 86% dimethylpolysiloxane were mixed Fixed liquid separation, electronic capture detector for testing, external standard method for quantitative.

4 reagent

Organic solvents should be re-steamed and chromatographed to verify the presence of non-interfering substances. The test reagents include. a) n-hexane. chromatographic purity; b) chromatographic standard sample. p, p'-DDE, o, p'-DDT, p, p'-DDD, p, p'-DDT, content 98% ~ 99% c) anhydrous sodium sulfate. analytical grade; d) Carrier gas. nitrogen, purity 99.999%, filtered by deoxidizing tube, oxygen content less than 0.0005%, hydrogen content less than 0.0001%; e) standard stock solution. accurately weighed p, p'-DDE, o, p'-DDT, p, p'-DDD, p, p'-DDT 10mg, respectively 100mL brown volumetric flask, diluted with n-hexane to the mark, mix and store at 4 ° C (sample storage period is 2 months); f) mixed standard working fluid. According to the electronic capture detector sensitivity and linear requirements, respectively, to measure a certain amount of four standard stock solution In the same volumetric flask, diluted with n-hexane to the mark, prepared into several concentrations of standard working fluid, stored at 4 ℃ Product storage period of 2 months).

5 equipment

The main equipment of the test include. a) a gas chromatograph with an electron capture detector; b) Column. φ0.32mm × 30m capillary column, coated with 14% propyl cyanide and 86% dimethylpolysiloxane mixed fixative; c) Oscillator; d) microinjector. 5 [mu] L, 10 [mu] L; ......

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