GB/T 21882-2008 English PDF

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GB/T 21882-2008: Liquid dyes -- Determination of the viscosity
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 21882-2008	169	Add to Cart	3 days	Liquid dyes -- Determination of the viscosity	Valid

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Basic data

Standard ID: GB/T 21882-2008 (GB/T21882-2008)
Description (Translated English): Liquid dyes -- Determination of the viscosity
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G55
Classification of International Standard: 71.100.01; 87.060.10
Word Count Estimation: 7,795
Date of Issue: 2008-05-15
Date of Implementation: 2008-11-01
Regulation (derived from): National Standard Approval Announcement 2008 No.8 (Total No.121)
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 method for measuring the viscosity of the liquid dye. This standard applies to the determination of the viscosity of the liquid dye.

GB/T 21882-2008: Liquid dyes -- Determination of the viscosity

---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.
Liquid dyes. Determination of the viscosity ICS 71.100.01; 87.060.10 G55 National Standards of People's Republic of China Determination of the viscosity of the liquid dye Posted 2008-05-15 2008-11-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

The standard proposed by China Petroleum and Chemical Industry Association. This standard by the National Standardization Technical Committee Dye (SAC/TC134) centralized. This standard was drafted. State Key Laboratory of Fine Chemicals, Dalian University of Technology, Shenyang Chemical Research Institute. The main drafters of this standard. Kiran piano, Peng Xiaojun, Shen Jiong day. Determination of the viscosity of the liquid dye

1 Scope

This standard specifies the method for determination of the viscosity of the liquid dye. This standard applies to the determination of the viscosity of the liquid dye.

2 Terms and definitions

The following terms and definitions apply to this standard. It is the internal friction of the fluid, and the other layer is a layer of fluid flow relative movement of resistance. Expressed in Pa · s.

3 instruments and equipment

3.1 rotational viscometer; measurement error is less than ± 0.5%; 3.2 Super bath. temperature fluctuation range of not more than ± 0.5 ℃; 3.3 Thermometer. indexing 0.1 ℃; 3.4 Container. Select the appropriate container according to the requirements of the instrument.

4 Test Procedure

4.1 Depending on the size of the sample viscosity, and select the appropriate rotor speed. 4.2 The vertical rotor immersed in the sample center, so that the liquid level marking to the rotor. 4.3 The test sample container and the rotor thermostat to 25 ℃ ± 0.5 ℃, and maintain the sample temperature uniformity. 4.4 Starting viscometer, when the rotational viscometer stable, the readings are recorded. 4.5 Two parallel test results shall be less than or equal to 2% of the arithmetic average of the test results.

5 Test Report

The test report includes the following. a) the name of the measured liquid dye; b) number of this standard; c) Test conditions; Name d) the use of the instrument, model; e) test results; f) during the test of exceptional circumstances; g) difference between the present method; h) date of the test. ......

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