This standard specifies the requirements, test methods, inspection rules and marking, packaging, transportation, storage and quality certificate of crude lead. This standard applies to crude lead produced by metallurgical furnace smelting. YS/T 71-2004 Crude Lead YS/T71-2004 Standard download decompression password: www.bzxz.net

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People's Republic of China Nonferrous Metals Industry Standard YS/T 71—2004
Issue 2004-06-17
Wet lead
National Development and Reform Commission
2004-11-01 Implementation
Y5/T71—2004
This standard is based on 6/T711992 Crude Lead> Compared with YS/T71—1995 Crude Lead 3, this standard has made the following changes: - New end-to-end (including requirements)
Regulates the large-scale twisted lead thick waste;
The North has made a reduction and modification:
For large chain The content of this standard shall be proposed and coordinated by a standardization technical committee. This standard was issued by Water Engineering Co., Ltd. The main drafters of this standard are Li Xiangze, Li Qiucheng and others. This standard is issued by the Technical Requirements for Hazardous Metal Products of Enterprises. The proposed version of this standard to replace the standard is: YE38193
Y5/T71195:
YS/T 71—2004
This standard specifies the requirements, test methods, inspection rules and markings for twisted products, including transfer certificates, storage and quality certificates. This standard is applicable to twisted products produced by smelting in metallurgical furnaces. 2 Normative references
The following documents are essential for the application of this standard and are related to the provisions of this standard. For example, the applicable documents are marked with a serial number, and all subsequent static documents are not fully controlled by the customer: or revised within ten years. However, the parties to the agreement on this standard shall consider whether the product versions of these documents are used. The latest version of the applicable documents is applicable to this standard, and the method of indicating the limit number and the method of judging the limit number are GB/T81/T1250. 70 Numbers of contract rules
1S:T248 Partial chemical composition
3 Requirements
3.: Product classification
Crude lead chemical composition grades: PCPE.UCPb4.U.3.2 Chemical composition
Chemical composition of relevant products should be specified in the table [Specification table 1
Chemical composition of relevant lead
Chemical composition
Method: New supply and demand of China have been confirmed by our people
, not too much
3.2, 2 The gold and silver in plastics are valuable raw materials, and the batch is real, and the reported content is the actual measured value. 3.2.3 The content of lead in the sales quality is the actual measured value. .
3.2.4 The screening period and impurities shall be determined according to the provisions of H817 (G/T125).
3.2.5 If the demander has special requirements for the chemical composition of the relative potential, the supply and demand parties can agree on 3.3 Physical specifications
331 The shape of the real rectangular shape is small, the whole size is small, the opening should be small, the connection should be flat, the size should not exceed 400m1, and the size should not exceed 3k%-3k%. 3.3.2 The diameter of the Australian master has the requirements or needs to be determined by the supply and demand parties. 3.4 Appearance qualitybZxz.net
The surface of the lead-acid package should be flat, without furnace protection, ice plugs and flash, and there should be no right layer, core and foreign matter inside the package. YS/T 71—2004
4 Test method
4.1 The chemical composition analysis method of the crude product shall be carried out in accordance with YS/T 41—2004. 4.2 The appearance quality of the crude product can be tested by using a mild test tool or appropriate testing tools. 5.1 Inspection and Acceptance
5.1.1 The supplier shall inspect and accept the materials according to the standards or the specifications of the order (contract), and the quality assurance department shall be responsible for the inspection.
5.1.2 The products received shall be inspected according to the standards. If the inspection results are in accordance with the specifications or the order (contract), the supplier and the buyer can reach an agreement within 10 days from the date of receipt of the products. If the inspection results are in accordance with the specifications or the order (contract), the supplier and the buyer shall reach an agreement on the inspection results. The inspection shall be conducted at the unit recognized by the supplier and the buyer. 5.2 Grouping
5.2.1 The sales shall be invoiced in accordance with the standards. The quantity of each batch of products with the same batch shall not be less than 3.5.2.2 If the buyer wishes, multiple batches of the same brand of the same product can be grouped into one inspection batch. 5.3 Inspection items
5.3.1 Chemical composition inspection and acceptance,
5.3.2 External purity quality inspection.
5.4 Sampling and sample preparation
5.4.1 Sampling
5.4.1.1 Small lead arbitration sampling
Take 1 chain from every 0 strands of the batch as energy, and every 5 chains as a group, no more than 5 straight lines are arranged in a straight line, and a diagonal line is drawn on the left and right sides. The first ingot is at one-tenth, the second ingot is at one-tenth, the third ingot is at one-third: the fourth ingot is at one-tenth, and the fifth ingot is at one-quarter. The points parallel to the long side and the diagonal are the energy points. After the sample is prepared, use the sample force method to empty the aluminum hole, and select the surface of the ingot and When the pinhole is full, it is necessary to remove all dirt and oxidation. The drilling pressure is half of the original pressure, the drill bit is straight, and the lead is not oxidized. The sampling diagram is as shown in Figure 1: Figure 1 Sampling diagram 5.1.1.2 Large-scale rough lead punching sampling
Batch to be counted, randomly collect a small amount of uncertainties, and every 5 samples can be a vertical array. On its diagonal line, take a point on the left side at three-fourths, the second chain at half, the third at one-third, the fourth at one-third, the hundredth at one-quarter. The intersection of the parallel lines of each column and the diagonal line is the pinhole point. After that, the 5-piece chain is put back in place, and the machine is used to drill the chain and the bottom of the chain to remove the stains. The hole depth is 2/3 of the overall size, and the drill bit diameter is 10mm*-12%m. When drilling, no directional agent is required, and the pin tip is made of aluminum non-oxidation rubber. 5.4.2 The sample is allowed to be less than 1mm in diameter and is sent through a magnetic field to remove the adult material. After weighing, it is divided into three portions. The portion below the sieve is about 15, and the sample should be no less than 15. The supply and demand parties should each have a duty. 5.5 Inspection result determination 5.5.1 Chemical analysis If the packaging does not conform to the provisions of this standard or the order form (company), it shall be regarded as qualified. 5.2.2 If the product quality inspection method does not conform to the provisions of this standard or the order form (company), it shall be regarded as unqualified. 6 Marking, packaging, transportation, storage and quality certificate 6 .1 Marking
Each batch of samples shall be marked with the date of delivery, the name of the manufacturer, batch number, and quantity; 6.2 Packaging
The samples may not be packed. If packed, the market supply shall be agreed upon. 6.3 Transportation and storage
During transportation and storage, the products shall not be damaged, missing, or contaminated. 6.4 Quality certificate
Each batch of samples shall be accompanied by a quality certificate: a) manufacturer name, address, and place of inspection; b) product name and brand name; d) inspection result and stamp of the technical supervision department: [》Not in compliance with the standard; 3) inspection date, factory date.
7 Order form (or standard equipment
order full standard material list minus standard equipment manufacturing also refers to the following information: a) product name;
b) chemical composition, material specifications, quality and other special requirements: brand:
quantity!
e) technical coating number;
\) others,
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