Some standard content:
1CS 71. 040. 30
Chemical Industry Standard of the People's Republic of China
Chemical Reagents
(2000)
Published on 2000-06-05
Implemented on 2001-05-01
Published by the State Administration of Petroleum and Chemical Industry
Preparation No.: 72762000
HG/T3480—2000
This standard is based on the chemical industry standard HG3481:19 Chemical Reagent Aminoacetic Acid:
This standard is for the first ten grades of biochemical reagents. The main differences between this standard and HG/T31801977 are: the name of the water-soluble base is changed to the standard.
The determination method is 1.10-non-isocyanate method instead of sulfuric acid method. Chromatographic test, PII, approximate structure number, iron, gold reduction using chemical test method standard, this cup standard from the date of implementation, at the same time, HG/T34801977. Tian standard Venice chemical industry reform policy regulations: This standard is under the jurisdiction of the National Chemical Technology Committee Chemical Test Branch. Drafting unit: Beijing Chemical Reagent Research Institute. This standard main drafters: Mei Rui Wan Qiang Beijing Lin Hao Yulin Liu Duolu This standard was issued in the first autumn of 2000, 2001.
Chemical Industry Standard of the People's Republic of China
Chemical Reagent
Aminoacetic Acid
Chemdcal Reagent
Aminvarctic Acid
Indicative Formula: H.NCH.COOH
Molecular Weight: 75.07 (according to the International Standard for the Analysis of Mass Spectrometry in 1995) 1 Scope
HG/T34802000
HGT341977
Specifies the requirements, test methods, inspection rules, packaging and marking of chemical reagents for aminoacetic acid. 2 Reference Standards
The provisions contained in the following standards are the provisions of this standard through reference in this standard. When the standard is published, the versions adopted are valid. All standards will be revised, and the use of this standard should pay attention to the availability of the latest version of the following standards. GHT6011988
603-188
97241588
CB/T U735-1588
GB/T 35
Chemical reagentsWww.bzxZ.net
Chemical reagents
Chemical test materials
Chemical reagents
Titration analysis (volume analysis) Preparation of old standard solutions for determination of impurities Preparation of preparations and products used in test methods Sampling and acceptance rules New specifications and test methods for use in laboratories (1503696:1587) Chemical reagents
General rules for determination of impurities c5035:1032
Chemical test materials
Chemical test materials!
GN/T 5741—1988
GB12648
GB_53451994
3 Properties
Chemical reagents
Chemical reagents
General method for determination of metals (tcVIS063531:1982)General method for determination of iron (tcVIS06353-1:1982)Applicable law (e9JS)333-1:82)General rule for determination of amino acids
Packaging mark
This reagent is a standard product, without water, alcohol or propylene. Specifications
The specifications of the base should conform to the requirements of Table 1. Approved by the State Petroleum and Chemical Industry Bureau on June 5, 2000 and implemented on May 1, 2001
HNCCO)
Analysis station
H value (5C 8/:25C:)
Technical analysis test
Calcination tube (with acid plate,
C) content, %
equal plate NH> content, Y
Hydrogen (the following e contains the most:%
Blood gold adjustment: with 1, [1) Content, weight %, %
5 Test
HC/T34802000
Specification for ethylene glycol
This document, unless otherwise specified, all standard instruments, standard solvents, preparations and products used shall comply with the provisions of GR/6F, GH/612 and CB/T503. Preparation: The water used in the experiment shall comply with the water specification in GB/T662-1. Samples shall be weighed accurately to the nearest g. The acid content of 5.1% is 0.2%
Weigh 0.2% of the sample (accurate to 0001%) into a dry ionized lithium flask, add 0.0 M acetic acid (glacial acetic acid) for static dissolution. 5g/L product requires 1 drop of indicator solution. Titrate the solution with standard high chloride (HCl()) 0.1MnI/1. Titrate until the solution turns sugarcane green. The net is for the test
The nitrogen content of the acid expressed as a mass percentage (X) is calculated by the formula (1): x-(VX. 07×100
×1Q0℃
Wherein: .
The volume obtained by titration with the chloral standard, mT.
In the test, the concentration of the high-purity acid standard is L, mol/L: The mass of each chloric acid standard is MHNHH/mol:
The mass of the product is the product.
5.2 New test
According to the provisions of 18648, the secondary determination is carried out by the monthly energy chromatography method. 5.2.1 Preparation of the test solution
The following reagents are used: alcohol, acetic acid (glacial acid) and ethanol (water alcohol) - water = 4 + + + 2 sample reduction: collect .1 sample, add 0ml water. Standard sample or working standard sample solution: weigh .1 frozen sample to make working standard sample, add 11ml water 5.2.2 Determination method
1 spot on the chromatography filter paper, 10L of each solution, according to the provisions of G/TG191992 61, the work is only allowed to have · spot, and it is qualified if it is consistent with the standard sample or the second standard sample. 74
5.3 pII value
Measure according to the provisions of /T.
5.4 Water solution test || tt||HG734802000
Gel connection C.5 Sample, add 10mL water, drop into the liquid pool, inorganic recovery. 5-5 Calcination residue spectrum
Take 5g sample, and determine according to the provisions of 4.1 of GB/TOY41-1988. Where: the average temperature is <800=25). The result is calculated according to the provisions of Chapter 5 of GB/TOY41-1988.
5.6 Chloride
Take 1g sample, add 25mL water, add 2ml of 25% caustic soda and 17/10% caustic soda, draw, and let stand for 1min. The turbidity of the solution should not be greater than that of the standard comparison solution. The preparation of the standard comparison solution is to take 0.03 mg of the oxide standard solution and treat it in the same way as the sample. 5.7 Salt
Weigh 0.4% sample, add 10mL water, 5ml of 95% ethanol and 1mL of 10% normal solution, and add 3ml of 250g/L chlorinated sodium sulfate under constant shaking. Dilute to 25ml. Mix well and collect for 10 minutes. The turbidity of the new solution should not be greater than that of the standard comparison solution. The preparation of the standard comparison solution is to take a standard solution containing 0.04mg (S) and treat it in the same way as the sample. 5.8 Salt
Take 1 sample and dissolve it in 10mL of water. Add 4m, hydrogen-free water, add 40g/ml, 5ml of hydroxyl radical, heat to 3UmL, use 3mT, hydrogen-free water to receive the colorimetric answer, add 2ml sodium reagent, and compare the solution with a yellow color no darker than the standard solution.
The standard lead solution is made of 0.02m(Fe) and is treated with the sample at the same time. 5.9
Take 1g of sample and put it in 15ml of water. Use 15% hydrochloric acid to adjust the pH value of the solution to 2. According to the provisions of CB/T935. The red color of the lead solution is not much darker than that of the standard solution. The standard lead solution contains 0.01m(Fe) and is treated with the sample at the same time. 5.10 Heavy metal solution
Take 1.2g of sample and put it in 2ml of water and 40% 7% acid soluble sugar. 0.2ml. None. According to the provisions of CB/T973, the color of the solution should not be too dark. The standard liquid containing 0.01mg (Pb>) is prepared. 5 polycrystalline, dissolved in water, diluted to 25, and can be treated with the same sample at the same time.
6 Test rules
According to 1. The net explosion is carried out in the collection and collection.
Packaging and marking
According to the provisions of GB15346, the packaging is carried out in a proper manner and the marking is given. The unit is taken with a belt, 2. The inner packaging form is NEY-4.NBY-=
Medium packaging form.Z5-1,Z
Net Boat Material State GC.-;
Outer packaging service form, WT-1.WT-, WB-3.75
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