This standard specifies the requirements, test methods and inspection rules for lithium hydroxide monohydrate, as well as marking, packaging, transportation and storage. This standard applies to lithium hydroxide monohydrate produced by industrial methods. GB/T 8766-2002 Lithium hydroxide monohydrate GB/T8766-2002 Standard download decompression password: www.bzxz.net

CS.77.150.99
National Standard of the People's Republic of China
G8/T8766—2002
Replaces GB/T8766—
Lithium hydroxide monohydrate
Lithium hydroxide monohydrate2002- 08-23 Issued
People's Republic of China
General Administration of Quality Supervision, Inspection and Quarantine
Implemented on 2003-03-01
GB/T Br662002
This standard is revised on the basis of the existing national standard GB/18766985 monohydrate or lithium oxide\. The quality level of the monohydrate oxygen treatment products and the requirements of users for product quality are compared with GB/137661S88. The main changes of this standard are as follows:
One product brand, T1 brand, is used in the same place. This brand is equivalent to the American Carp nratint:af Arvelica standard (1-44C)
The chemical composition of each brand is adjusted accordingly: Appendix A is added.
From the date of implementation, this standard replaces G and K. The additional Appendix A in this standard is the thermal conductivity specification. This standard is implemented by the National Nonferrous Metals Industry Association. This standard is issued by China National Institute of Industrial Standards and Metrology and Quality, and drafted by Xinli Salt Factory, China National Chemical Corporation, and Jiangxi Wang Factory. The main contributors to this standard are: Yu Qiugen, Ji Yuedi, Shangling, He Ya, Peng Qiuhua, Zhang Xianxiao, and the latest version of the standard replaced by this standard; -GB A7RF—1SNN.
1 Scope
Lithium hydroxide monohydrate
GR/T 8766:-2002
This standard specifies the requirements, test methods and inspection rules of lithium hydroxide monohydrate, as well as marking, packaging, shipping box and storage. This standard applies to lithium monohydrate produced by industrial methods. 2 Normative references || TT || The clauses contained in the following documents become the clauses of this standard through reference in this standard. For documents with a date indicated, all subsequent amendments (excluding errors) or revisions are not in accordance with this standard. However, it is encouraged that the relevant departments reach an agreement with the relevant departments for the use of new versions of these documents. For documents with a date indicated, their version is applicable to this standard: GB/T1SC Cargo packaging mark
CB/TI packaging storage and transportation pictorial mark
GB/T63S3 transport packaging receiving and sending mark
G1/T1164-1989 Lithium carbonate, lithium hydroxide monohydrate chemical analysis method 3 requirements
3.1 Product classification (brand)
The chemical composition of lithium hydroxide monohydrate is divided into national brands, LiOH-H,O·TI, LiOH·HCT2,I.iCH·HO-1 and LiOHh +H,O-2.
3.2 Chemical composition
The chemical composition of monohydrated hydroxide should be in accordance with the requirements of Table 1. Table 1
Chemical composition
: LIOH Nutrition
T,H --T3
LiOH. HU-1
1a(H . H,OL2
After each group, not more than
G, 0:0
Electrochemical content: 3.2%.
3.3 Appearance
Product is a color-coated product: It has sound properties, and the test method for the presence of impurities is limited.
Monitoring acid and non-drug
Water
4.? The chemical composition analysis of the product is in accordance with CB/T11084.1--11064._8-19893 carbon intercalation lithium, monohydrate oxidation, lithium hydride chemical analysis method 3 thermal analysis. The analysis of water and non-box substances is carried out in accordance with the registered specifications. 4.2 The appearance quality inspection of the product shall be conducted on a daily basis. 1
CB/16766—2002
5 Inspection rules
5.1 Inspection and acceptance
5.1.1 The product shall be inspected by the supplier's quality supervision department to verify that the product complies with the provisions of this standard (or order contract) and a product quality certificate shall be issued
5.1.2 The supplier shall inspect the received product in accordance with the provisions of this standard (or order contract). If the inspection results do not conform to the provisions of this standard (or order contract), >If it does not meet the requirements, it should be reported to Hongfang within one month after receiving the product, and the supply and demand parties shall negotiate to resolve it: If the demand is in secret, the arbitration sampling shall be carried out by the demand party and the demand party:
5.2 Batch
The products shall be received in batches, and the batches shall be placed by the same mixed materials: the batch weight is the net weight, 11.5.3 Inspection items
The parent batch products shall be inspected for chemical composition and external quality: The quality consistency inspection items of each batch of production shall comply with the provisions of Table 2, Table 2
Model calibration items
Chemical composition
Appearance quality
5.4 Sample
Absorbent
2/3 of the bag
2/3 of the bag
Number of samples
Required annual inspectionbzxZ.net
Quick batch inspection
Selected batch inspection
Use a sampler without adding lubricant or hard chlorinated ethylene, and take the sample along the center of the bag to 2/3 of the bag: the collected samples are mixed and then divided into about 20)8 by quartering method.
5.5 Judgment of inspection results
5.5.1 If the chemical composition inspection result of the product is unqualified, a sample from the same company product shall be taken for each item of the annual inspection. If there is still one result that is unqualified, the batch shall be judged as unqualified. 5.5.2 If the product does not meet the quality standards, the bag is considered unqualified. 6 Marking, packaging, transportation and storage
6.1 Marking
The product should be marked with: product name, number, net weight, weight, place of origin and GB/91 Figure 13\brain corrosive material mark\G638% mark and GB/91 Figure 1-5\brain corrosive material mark. 6.2 Packaging
The product is packed in two plastic bags, which are respectively packed in plastic bags and then folded for two times, and then packed in plastic bags.
63 Transportation
The product is a damaged material. The product packaging and loading should be prevented from being damaged. Pay attention to moisture. 6.4 Purchased and stored
Products should be kept in a dry and corrosion-resistant place: the storage period should not exceed half a year. 6.5 Quality certificate
The batch production certificate should be accompanied by a quality certificate: it should be clearly stated on it: supplier name, place of certification, telephone and fax! h) Product name:
1) Product brand:
d) Product batch number:
e) Stop and calculate;
1) The results of various analyses and the inspection department have been printed g) This batch number:
h) Issue date
GR/T8766—2002
CB/T8765—2002
Appendix A
(Normative appendix)
Chemical analysis method for water-insoluble content of lithium hydroxide monohydrate This method is suitable for the determination of water-insoluble content of nickel hydroxide monohydrate. Determination range: 0.%--)1 Approx. A.2 Method Summary
The sample is dissolved in boiling water, cooled, drained, and then the substance is dried and weighed. The aqueous solution of lithium monohydrate is determined by the method. A.3 Reagents
Secondary ion water,
A.4 Sample
The lithium monohydrate sample should be placed in a container and stored in a vacuum seal. A.5 Apparatus and equipment
Flat plate, drying oven, No. 4 suction sand plate. AE analysis procedures
A.6.1 Samples
238 samples are combined, accurate to 0.C0018. Two independent determinations are carried out and the half-mean is taken. A.6.2 AE2.7 Cover the sample (A.6.1) in a 60mL plastic cup, add 400ml boiling water, stir with plastic for 5min until the sample is completely dissolved, and cool. 4.62.2 Use a No. 4 sandpaper to filter the sample (A.6.2.1). Use ice-cold beaker 3-4 times, rinse the plate in a full bucket, rinse with hot water 1-8 times, discard the solution, filter the plate at 105-110°C and bake until constant temperature: Calculate the analytical results: The content of water residues is calculated according to formula 1: Water residues () = type × 100
Wherein:
The mass of the glass plate full of water and without any dissolved matter, in grams (); r
The mass of the glass plate end, in grams (); The amount of the test material, in grams ().
The result should be expressed to the last decimal point. The decimal point is equal to 0.When the percentage is expressed to the last four digits after the minimum effective point, 4
.(A.1)
A.8 The difference between the analysis results of laboratories should not be greater than the tolerances listed in Table A, 1. Table A.1
Content of water in the purchased
3. 22 0--0, 0:0 3
>0. 0.0--0 050
>0, 050 --0. , 00
H/T 8766-2C02
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