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GB/T 22593-2008 English PDF

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GB/T 22593-2008: Water treatment reagent -- General rules for the determination of limiting viscosity number
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Basic data

Standard ID GB/T 22593-2008 (GB/T22593-2008)
Description (Translated English) Water treatment reagent -- General rules for the determination of limiting viscosity number
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard G76
Classification of International Standard 71.040.40
Word Count Estimation 6,685
Date of Issue 2008-12-23
Date of Implementation 2009-09-01
Quoted Standard GB/T 6682
Regulation (derived from) National Standard Approval Announcement 2008 No.21 (Total No.134)
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 general method of water treatment agent limiting viscosity number measured. This standard applies to the determination of limiting viscosity number of water treatment agents.

GB/T 22593-2008: Water treatment reagent -- General rules for the determination of limiting viscosity number


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Water treatment reagent. General rules for the determination of limiting viscosity number ICS 71.040.40 G76 National Standards of People's Republic of China Water treatment agent limiting viscosity number determination General Posted 2008-12-23 2009-09-01 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 of Chemical Water Treatment Chemicals Branch (SAC/TC63/SC5) centralized. This standard is drafted by. CNOOC Tianjin Chemical Research & Design Institute, Tianjin Pacific Technology Co., Ltd. The main drafters of this standard. Bai Ying, Zhu Zhuanjun, Shaohong Qian, Li Lin. Water treatment agent limiting viscosity number determination General

1 Scope

This standard specifies the general method of water treatment agent limiting viscosity number measured. This standard applies to the determination of limiting viscosity number of water treatment agent.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 6682 analytical laboratory use specifications and test methods (GB/T 6682-2008, ISO 3696. 1987, MOD) Principle 3 Blank solution selected will be formulated into a dilute solution of water treatment agent, using an Ubbelohde viscometer its limiting viscosity number.

4 Reagents and materials

This standard reagents and water, unless otherwise specified, shall use analytical reagent and in line with GB/T 6682 three water requirements. 4.1 Sodium hydroxide solution. 80g/L. Sodium thiocyanate 4.2. 101g/L. 4.3 sodium nitrate solution. 85g/L.

5 instruments and equipment

5.1 Ubbelohde viscometer (Figure 1). capillary diameter 0.50mm (± 2%). When the (30 ± 0.1) ℃, distilled water flowing through the timing marking E, F The time is more than 100s. 5.2 constant temperature water bath. temperature control (30 ± 0.1) ℃. 5.3 Thermometer. (0 ~ 50) ℃, indexing is 0.1 ℃. 5.4 Stopwatch. minimum scale value of 0.1s. 5.6 Acid filtration funnel. G3,40mL. Step 6 Analysis 6.1 blank solution Choose the appropriate blank solution based on water treatment chemicals product-related standards. 6.2 Determination of flow time of the blank test The clean, dry Ubbelohde viscometer is placed perpendicular (30 ± 0.1) ℃ in constant temperature water bath, so that the entire submerged underwater D ball. By G3 Acid solution was filtered through a funnel to add blank Ubbelohde viscometer filling marking G, far between H. Constant temperature 10min ~ 15min. M is a shroud Hose, by clips. Wash the ear with the ball blank solution into C ball marking E above, open M tube, measured with a stopwatch blank solution flows

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