QB/T 2623.8-2003 Soap test method Determination of phosphate content in soap
Some standard content:
ICS 71.100
Classification number, Y43
Alternative number: 13174-2004
Light Industry Standard of the People's Republic of China
QB/T 2623.8—2003
Test methods for soapsWww.bzxZ.net
Determinalion of phosphate content in soaps
Testmetliodsofsoaps
Determinalion of phosphale content in snapsPublished on December 11, 2003
National Development and Reform Commission of the People's Republic of ChinaImplemented on May 1, 2004
QB/T2623.62003
Technical standard is the eight prohibited standards in the QT2623 Bibizhuo test method series standards. This series of standards is modified by sub-item standards, and the names of the standards are marked below:
QB/T 2623.1
QD/T 2623.2
QR/T2623.3
OB/T 2033.4
00/T 2623.3
Fertilizer test method
Fertilizer layer test method
Fertilizer research method
Fertilizer research method
QB/T2623.6
Fertilizer layer test method
QB/T2623.7
Fertilizer test method
Determination of free alkali content in fertilizer products
Determination of total alkali content in fertilizer products
Fertilizer Soap: Determination of total alkali and total lipid content in fertilizers. Determination of moisture and hair content. Oven method. Determination of insoluble matter in fertilizers. Determination of oxide content in fertilizers. Titration method. Determination of iodine and unsaturated fat in fertilizers. QB/T2623.8. Test method. This standard is transferred from China National Standardization Center for Detergents. This standard is drafted by: National Special Detergent Inspection Center.
This is the first time to publish.
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QB/T 2623. 8—2003
In order to reduce the phosphorus content in household sewage, the country will take measures to stop the phosphorus content in different regions! At the same time, the government departments will approve the green product logo in the sewage treatment products. To check whether detergents contain linalin, scientific and industrial research methods are required. The national standard GB/T13171-1997 Laundry Detergents "Appendix B" is a relatively simple method. However, there are many household detergents, and many of them are made of raw materials. Some raw materials will interfere with the detection, making the standard test method results very difficult to verify, and soap is an example. For this reason, this standard combines the characteristics of other products and proposes a range for the content of linalin in such traditional detergents. QB/T2623.8-2003 Soap Test Test method Determination of phosphate content in fertilizers This standard specifies the method for determining the phosphate content. This standard is used for the determination of phosphate content in fertilizers, fragrances, transparent detergents, and detergents containing natural fats and acids. 2. Specification References The following documents become the provisions of this standard through the use of this standard. All subsequent revisions (excluding those of the previous revision) or amendments are not applicable to this standard. However, the latest versions of these documents, including those referenced by this standard, are applicable to this standard. QD2623.1-2003 Fertilizer test method for determination of fertilizer content 3 Principle
After the fertilizer is acidified, extract the water-insoluble fat with ether, take a certain volume of the solution, add ammonium sulfate-sulfuric acid solution and precipitate, heat in boiling water at a depth of 45mm, hydrolyze the polymagnetic acid to polymagnetic acid and add indole, measure the absorbance by spectrophotometry at a wavelength of 650nm, and obtain the actual absorbance of PO4 (PO4, product), and calculate the relative content of the product. 4 Reagents and materials
Unless otherwise specified, only reagents and water considered to be analytically pure should be used in the analysis. 4. Hydrochloric acid (GB/T622) about 1mol/L 4.2 Hydrochloric acid (GB/T1584).
4.8 Ammonium sulfate-sulfuric acid solution, 7.2g/L solution (MoO4HO (GB/657》7.2 water-, M concentration is H50=101ol/L sulfuric acid (GB/T625) 400ml water to release 1000mL of this solution-sulfuric acid concentration is HSO.=4mol/, each- has about 6g trioxide (MvO)
4. 4 Anti-b: hemic acid, 25g/L solution, every 2, people ~ 3 people low use. 4.5 Branched two standard solution (containing 1mL P0s [.00m) Carbon-supported gas (KH.P04) 0BT1274) was dried for 2h in a large dryer (110-2) billion: 1.917g (about .0), added hydrolyzed, transferred into 1wm cover, diluted with water until mixed. 4.8 Standard dioxygen solution (containing 10 POs per 1 mE) Accurately pipette the standard dioxygen solution (4.510.mT) into a 101ml volumetric volume, dilute to 100°C, and mix. 5 Apparatus
Shoudi Experimental Equipment
5.1 Burner, 150ml.,
5.2 Graduated sample bottle, 100, 20mT, 1000rl5.3 Divider, 250mL.
5.4 Steel, slightly boiling
5.5 Hard glass test tube, 25mm×200mmH KANY KA=
QB/T2823.8··2003
5.6 Spectrophotometer, 3501u~800m6 procedure
The same sample is measured in parallel.
6. Preparation and preservation of samples
Prepare according to 3.4 of QB/T2623.120K13, and store the samples only. 6.2 Test
Weigh 1% of the test sample in 5.1) and weigh to 0.001g6.3 Determination
6.3.1 Take the separated fatty acids
Test sample as 100mT of water, heat it to dissolve, and add hydrochloric acid dropwise while stirring: 4.1) Adjust the water content to below 2 and test with 11 test paper. After the selected part is cooled to 30~℃, add 4.215U of vinegar, transfer the mixture to 250mL of separation bucket, rinse the ring with 50mL of water, and then separate the mixture into the separation bucket. After sufficient rinsing, separate the mixture. Put the lower aqueous phase into another separation bucket, add oil-free (4.2! ml. Wash with water 1~2 times, change the water after the night into 250mL of 5.2! Wash the mixture once in the same separation bucket. After separation, sweep the water containing the product to the above-mentioned bucket, and then add water.
B.3.2 Preparation of standards
Separately transfer pentoxide. Micro-standard solution (4.6>0mL. 2.0mL, 4.0mL, 6.0mL, 8.0mL, 10.0mE, 15.0mL, 2n.0mL) to the test palm (5.5), add to 25ml, add the following according to the following formula: 4.3) 1ml. and hypertensive slow drop (4.1) 2mL, boil (5.4) for 4Smin, and transfer to 100 mL: S.2, dilution rate, wet spoon: mountain spectrophotometer with 20mm colorimetric cell, water "-season ratio, measure the absorbance of the solution at a wavelength of 650mm, the absorbance of the test solution containing the main chemical disulfide standard solution minus six m. Set up the photometric adjustment of the test solution with the absorbance of the five oxygen barriers (drink) as the horizontal axis, and draw the detection system. 6.3.3 Determination of nitrate magnetic salt || tt || Transfer according to 6.3.1 to deal with the water-soluble 25.m, ten test camp 5.5), technical 6.3.2 column word measurement The absorbance of a given solution is called a fastness test (not as good as a test without a net absorbance test). The net absorbance of sulfur pentoxide (g) in the standard industry system must be obtained. The total sulfur pentoxide content in the three points is expressed as a mass fraction and calculated according to formula (1): × 250
m, × 25
wherein;
… The test solution has an absorbance equivalent to that of sulfur pentoxide, so it is 1m,--the mass method of the test, g.
The absolute difference in precision obtained under the conditions of
three independent measurements is not more than 0.1%, and is greater than 0.1% of the case does not exceed the edge s% as a prerequisite:
8 Test report
The test report consists of the following items.
a) All the information required for the complete sample: b) The number of the used formula (the reference of the standard) 2
The medicine and the formula are expressed:
Test conditions:
The conditions specified in this standard or any conditions provided by the standard, as well as any published tests that may affect the results
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QB/T2623.82003
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