GB/T 22593-2008Water treatment reagent - General rules for the determination of limiting viscosity number (English PDF)
水处理剂 极限粘数测定方法通则
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
December 23, 2008
Implementation date
September 1, 2009
Scope
GB/T 22593-2008 is the English-translated version of 水处理剂 极限粘数测定方法通则.
GB/T 22593-2008 is the Chinese standard "Water treatment reagent - General rules for the determination of limiting viscosity number". Its scope clause reads: 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. Its clauses include reagents and materials; instruments and equipment.
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Document preview — GB/T 22593-2008
National Standard of the People's Republic of China
- ICS
- 71.040.40
- Classification
- G 76
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Normative references
- 4 Reagents and materials
- 5 instruments and equipment
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) °C, 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) °C.
5.3 Thermometer
(0 ~ 50) °C, indexing is 0.1 °C.
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) °C 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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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
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