GB/T 3260.2-2000 Chemical analysis method of tin - Determination of iron content
Some standard content:
:1 3266.22C0
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GL'T 1-5197:
11: 1728 1987
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South China Industry and Science
Chasing food products next analysis point according to the standard to change the industry and science
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General rules of public light enterprise law
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International Academy of Engineering China Limited,
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National Standard of the People's Republic of China
Tin chemical analysis method
Determinition of iron
Methods Por cheinlcal analysy or tinDetermionticn ot iron contentThe standard specifies the method for the determination of iron content in the method. The method is used as the whole specification: 0-63mm long:? Method summary
GP T 3260.2·-2200
RG T :2 ::5?
The material is emulsified with hydrogen to produce HSS. The red compound is mixed with 1.1-1.0% impurities and the spectrophotometry is measured at the wavelength of the wavelength. The colorimetric solution contains 1 m lead, 0.2 m lead, 0.3 m potassium, 1 m potassium, and a certain degree of purity. The sodium content is less than 1 m, and the reagent can be used to eliminate the interference. Hydrochloric acid p., 19g/mL:.
3.2 Oxygen can be %
3.3 Hydrochloric acid ·
3.5 Discount sodium ruthenate solution 23gL)
3.6 Alcohol flow shallow (100kt.!
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3.8 Hydroxy acid tablet solution 100gL:
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3.11 Heat standard liquid: transfer 1CC gold country style 9S.), 2CGmL burning material.t blood, 1 Ling,,).1 peroxide, add all the solution to drive out the formation: cold state water wash blood collection, transfer: container cover building shell, rice sample Liu degree mixing, this liquid 1. Iron content 3.12 cooked standard liquid: than 0.cCm4 freeze level 50cm]. Put in the mold, add 2ml. Put (3.11. Le selected air to filter the liquid than 1 ml. Contains 1 limit method
Analysis steps
.1 Materials
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G/T 3260.2--200G
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4.3.5 simple 2 wine, use the reduced medium test liquid micro-capacity, enter m. teaching no: 1\dense special winter limit uniform liquid transfer 2: m. volume amount, water compilation army moment management: install m436 and change the price reduction into the absorption with the test material life space F war test limit as the small piece sequence wave center setting its light collection no, with the price out of the output deduction of the drink section 1.1 up the mountain to send the room to draw
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5 analysis results are described in the calculation:
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CB/T 3260.22000
firewall original · absorption light harmonic method type wide chain quantity
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In the case of non-conference shares, all control the following theft and other items can be used. The fast reduction of the Sa collection can not be less than 20ml.
consumption, non-bed standard set of absorption complete degree, its certificate does not exceed the limit of absorption 1. The range of economic waves does not "live" elegant liquid flow absorption degree common standard deviation high liquid wave light limit 3 54.
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GR:T 3260.2 2000
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A5.3.1 Test material (A5.1F:30 r. Burn the needle, add 4ml. Former age 13 mt J water A3.6). Bring. Low office comfort and stability! Beautiful, the device is sent to the day! Evaluation, take F pin cold, into m1. Load: A1: into 1T. Hydrogen flow melt, low quality you door grid 3 low net
5I or 1umL Yong (A36:, slightly hot dissolve: take off the cold. Move the swimming pool into ml. or ml through #! Dilute with water to 1 degree, mix!
A5.3.2 Make Sichuan Bao gas ethylene quickly increase the fire, hand stock production absorption change light falling instrument center 4K, 3am, with the standard run capital wave series state, with water adjustment, measure the swimming wave! Photometric, reduce the cloud with the sample of the air self-diagnosis of the absorption of the absorption, the above work line Li village into iron paint point AE.41I final preparation
A5. 1. 1 transfer 0,3. 50,1. 30, 7. 5℃, 16. 30, 12. 5℃, 5. 0n nt. tube standard solution divided into 1,; F-*-group 100 mL volume only that city.t person m. just ask A3.5). with water to the carmono about. 5.4.2 The two books are marked with the same standard and the light is collected. The scientific standard is to seek the degree of fire as the professional standard. The light is reduced to zero "limited to deep liquid light shop as a single line
16 Analysis result expression
direct formula A policy of the combination of the amount:
In the formula, the diameter of the test solution is checked on the line; the volume of the test solution, m.
·---·The quality of the test sample·
Original energy is to make a small amount of small effect: at 0. Time, send tea to five decimals.
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GI5/1 3260. 2—2000
Attached is the working state of the instrument
Use the following X-shaped original to measure the absorption light position of the sheet. 151
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