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SN/T 2704.3-2010: Cutting fluid and machining process waste fluid. Part 3: Determination of nitrite. Ion chromatography
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| SN/T 2704.3-2010 | English | 209 |
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Cutting fluid and machining process waste fluid. Part 3: Determination of nitrite. Ion chromatography
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SN/T 2704.3-2010
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Basic data | Standard ID | SN/T 2704.3-2010 (SN/T2704.3-2010) | | Description (Translated English) | Cutting fluid and machining process waste fluid. Part 3: Determination of nitrite. Ion chromatography | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | E45 | | Classification of International Standard | 75.100 | | Word Count Estimation | 8,855 | | Date of Issue | 2010-11-01 | | Date of Implementation | 2011-05-01 | | Regulation (derived from) | National Quality Inspection (2010) 582 | | Issuing agency(ies) | General Administration of Customs | | Summary | This standard specifies the cutting fluid and machine fluid nitrite excretion measured ion chromatography marsh France. This standard applies to oil cutting fluid and machine fluid nitrite excretion was measured. | SN/T 2704.3-2010: Cutting fluid and machining process waste fluid. Part 3: Determination of nitrite. Ion chromatography
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Cutting fluid and machining process waste fluid.Part 3. Determination of nitrite.Ion chromatography
People's Republic of China Entry-Exit Inspection and Quarantine Standards
Cutting fluids and excretions machines - Part 3.
Determination of Nitrite Ion Chromatography
Part 3. Determinationofnitrite-Ionchromatography
Issued on. 2010-11-01
2011-05-01 implementation
People's Republic of China
The State Administration of Quality Supervision, Inspection and Quarantine released
Foreword
SN/T 2704 "machine cutting fluids and excretions" series of standards are divided into the following sections.
--- Part 1. Determination of phosphate ion chromatography;
--- Part 2. chlorine, bromine ion chromatography;
--- Part 3. Determination of Nitrite Ion Chromatography;
--- Part 4. Determination of mercury in mercury analyzer method.
This section SN/T 2704 Part 3.
This section according to GB/T 1.1-2009 write.
This section proposed and managed by the National Certification and Accreditation Administration Committee.
This section was drafted by. People's Republic of China, Shenzhen CIQ.
The main drafters of this section. Liuxian Jie, Liu Li, Song Bao Liang, Ren Cong, Li Ying.
This section is the first release of the entry-exit inspection and quarantine industry standards.
Cutting fluids and excretions machines - Part 3.
Determination of Nitrite Ion Chromatography
1 Scope
This section SN/T 2704 specifies the cutting fluid and the machine excretions Nitrite determined by ion chromatography.
This section applies to oil cutting fluid and the machine excretions Nitrite Determination.
2 Terms and definitions
The following terms and definitions apply to this document.
2.1
Cutting fluid cuttingfluid
In the process, mainly from the injection cooling, lubrication, cleaning, rust and other effects of liquid workpiece and tool (or abrasive) between.
2.2
Machine excretions machiningprocesswastefluid
Machine waste generated in the process.
3 Method summary
After the sample was extracted with water twice in a separatory funnel, and the extract was determined by ion chromatography, according to Nitrite retention time qualitative standard
Standard curve quantification.
4 Reagents
Unless otherwise indicated, used in the analysis confirmed only for the gifted class pure reagents, ultra-pure water conductivity (25 ℃) was ≤0.01mS/m.
Nitrate 4.1 (ρ1.42g/mL).
4.2 nitric acid (10% volume fraction). nitric acid (4.1) was diluted.
4.3 sodium carbonate.
4.4 sodium bicarbonate.
4.5 eluent (0.0045mol/L sodium carbonate 0.0014mol/L sodium bicarbonate solution). Accurately weigh 0.4770g sodium carbonate (4.3)
And 0.1176g of sodium bicarbonate (4.4) in the beaker, diluted with water and dilute to 1000mL.
4.6 Sodium nitrite. certified reference material, drier 24h stored for use.
4.7 Nitrite standard solution (1000μg/mL). Weigh accurately 1.4997g sodium nitrite (4.6) in the beaker, diluted with water and set
Volume to 1000mL. Or direct use of certified reference materials.
5 instruments and equipment
5.1 Ion Chromatography. Electrical conductivity detector, suppressor, an anion exchange column, 25μL loop.
5.2 Analysis of balance. a sense of the amount of 0.1mg.
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