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GB/T 23977-2009: Dyestuffs -- Determination of content of salt -- Conductance method
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 23977-2009 | English | 189 |
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Dyestuffs -- Determination of content of salt -- Conductance method
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GB/T 23977-2009
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Basic data | Standard ID | GB/T 23977-2009 (GB/T23977-2009) | | Description (Translated English) | Dyestuffs -- Determination of content of salt -- Conductance method | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G55 | | Classification of International Standard | 71.100.01; 87.060.10 | | Word Count Estimation | 8,870 | | Date of Issue | 2009-06-02 | | Date of Implementation | 2010-02-01 | | Quoted Standard | GB/T 2374-2007; GB/T 6682-2008 | | Regulation (derived from) | National Standard Approval Announcement 2009 No.8 (Total No.148) | | 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 determining the amount of dye salt with conductivity meter (as NaCl) is. This standard applies to the dye content (NaCl) is determined. | GB/T 23977-2009: Dyestuffs -- Determination of content of salt -- Conductance method---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.
Dyestuffs. Determination of content of salt. Conductance method
ICS 71.100.01; 87.060.10
G55
National Standards of People's Republic of China
Determination of the amount of the dye salt conductivity method
Posted 2009-06-02
2010-02-01 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. Zhejiang Ruihua Chemical Co., Ltd., Anhui Fengyang dye Chemical Co., Ltd., Shenyang Chemical Research Institute, National dye
Material Quality Supervision and Inspection Center.
The main drafters of this standard. Wang Yong, Nguyen GB , Zhihua, Kiran piano, Ruanfang Ping, Ma Junqing.
Determination of the amount of the dye salt conductivity method
1 Scope
This standard specifies the method for determining the amount of the dye of salt with conductivity meter (as NaCl) of.
This standard applies to dye salinity (as NaCl) were measured.
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.
General conditions GB/T 2374-2007 Determination of dyes provisions
GB/T 6682-2008 analytical laboratory use specifications and test methods (ISO 3696. 1987, MOD)
Principle 3
Within a certain range of concentration, the salt content of the solution was positively correlated with the electrical conductivity, the higher the salinity, the greater the osmotic pressure of the solution, the conductivity is also more
Big. Dubbed a certain concentration of the dye solution or suspension, by measuring the electrical conductivity of the solution, you can calculate the salt content of the sample.
4 Equipment and Materials
Equipment and materials shall comply with GB/T 2374-2007 the provisions relating to equipment and materials; experimental water should comply with GB/T 6682-2008
The three water requirements.
a) conductivity meter.
b) analytical balance. a sense of the amount of 0.0001g.
c) volumetric flask. 100mL, 250mL, 500mL, 1000mL.
d) a single marking straw. 10mL, 20mL, 50mL.
e) Sodium chloride, analytical grade.
5 measurement method
5.1 Standard curve preparation work
5.1.1 Preparation of standard solutions
Accurately weighed sodium chloride 1g (accurate to 0.0005g), dissolved in water to 1000mL volumetric flask, dubbed 1000mg/L
The standard solution. Single marking straw from Pipette 50mL solution, were placed in 100mL, 250mL and 500mL flask
Diluted with water to the mark, dubbed 500mg L, 200mg/L, 100mg L solution//. Then a single straw from marking solution 100mg/L of
Solution Pipette 50mL, 20mL, 10mL in three 100mL flask, diluted with water to the mark, formulated as 50mg/L,
20mg/L, 10mg/L of standard solution.
5.1.2 Determination of standard solution
Determination of the file in accordance with this standard 5.1.1 formulated standard solution conductivity δx with conductivity meter, respectively.
5.1.3 Draw the standard curve
Values \u200b\u200bare plotted according to the conductivity of the standard solution of sodium chloride concentration and the measured conductivity - concentration curve.
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