Some standard content:
Scientific and editorial classification (version):
This standard is revised only 155138:333# material
This standard is revised only 1593 new single. GB/T 4676-20C3
Taking into account the original content and the operability of the standard, this standard has added practical and feasible content on the basis of adopting the international standard. The differences are reflected in that this standard is consistent with 3.1, 4.2, 4.3 (paragraph 1) of the previous standard 5.1 (except 7.2.2.18, 1.3; 3.2.4.3 (paragraph 2) of the previous standard 8.1.:3%, but the added drawings and scales are all the changes in the international standard. The contents of this standard are all in line with the actual additions: This standard replaces (/T767-15H general standard) Material sampling method 3: Compared with the vehicle standard (H14376184), the changes in the production cost are as follows: the original content has been modified! The single chapter has been expanded to explore the exact applicable scope.
Added broad \ technical and definitions.
Added 3 items in "general users", and changed Beijing 1.5 to! "Selection and storage" · Recorded results. The expression of the pusher was modified according to international standards, and the content of the attack light in the identification standard was modified. The form of the information appendix is as follows: Appendix 4. Add Table 2 and Table 2: Adjust the sampling and the amount of the sample. The characterization of the light particle size of the grinding mill adopts C5/T24%1 and B. The following 238 provisions. The single force method is added to the "equal quality interval sampling method" and the loss is the most complete. The provisions for the sampling of the sub-sampling shovel are added. | "Reduction and increase of household" "\ Xiong four-point method" This standard records 4 informative appendixes,
This standard was proposed by China Machinery Industry Federation, this standard is the national standard of Beitou Technical Committee 6 13, this international note is from the national seven sand area limited liability company Jiang Gongke, this bad super grass person: Xiang Fu:, Xiao Xiuling, Wu Xiaozhan, He Ying. This note was first released in 2007,
Ordinary abrasive sampling method
GR/T 4676—2003
This standard specifies the general provisions for sampling of common sealants, sampling tools, sampling methods, number of samples, and product classification, maintenance, etc. This standard applies to abrasives: non-abrasive steel series and carbide series products can be collected for reference: 2 Normative References
The clauses in the following documents are used as detailed clauses in this standard through the use of technical specifications. All references to the standard documents will be changed in the following format. No single version (including the contents of the manual) or version is applicable to this standard. However, it is encouraged that the latest version of this document be used after studying the standard. The latest version of the standard B/T9:70 is applicable to the international group. The following terms and definitions are applicable to the products produced by the same manufacturer. 3. 2
delivery batch
a certain number of products delivered to customers at one time: a delivery batch consists of one or more production batches, and can also be composed of a part of a production batch as the first part.
inspection batch
a certain number of products sampled in the inspection batch, 3.4
sumple
a certain number of products collected from the inspection batch are used for physical and chemical analysis to determine whether the products meet the requirements of the packaging, 3.5
increment
taken from the packaging unit at one time:
halk sample
the total amount of all samples taken from the same specification inspection batch
test sanaple
six samples taken are prepared into a sample for analysis, 3. B
Packing unit packagedunilt
A small package with a certain volume that can be filled through a needle hole GB/T 4676—2003
4 General provisions
4.1 The sampling method specified in this standard or the method for determining the average quality of a batch of products: 4.? The relative difference in the basic particle size (quality) of two samples obtained by the wave method specified in this standard for the same batch of products shall not be greater than 8. 4.3 The various tools and instruments used in the process of separation and inspection shall only be tested and maintained within the limits of the standards. 4.4 During the separation operation, no contact with the sample shall occur. The product shall not be changed. 4.5 In case of dispute, the two parties shall reach an agreement on the selected plan before implementing the sampling. The content agreed by both parties shall comply with the provisions of this standard. 4.6 For sampling in the food, take 5 samples per bag. For bags with less than 5 weight, take 100 samples per bag. 4.7
5 Sampling tools
5.1 Sampler
The sampler is made of seamless steel pipe or tube, with an inner diameter of 25mm, a length of about 80cm, a flame head at one end and a T-shaped handle at the other end: drill holes in the steel pipe with a hole spacing of 50. The diameter of the hole should be close to the maximum particle size of the sampled product. However, the following are suitable for consideration: For dry F20P25, use a diameter of 1Fmm; for F1e.s and weaker materials, use a diameter of m.
An alternative block-type sampler is made of F4 (PI12) with fine separation. This sampler is also made of continuous steel pipe, with an inner diameter of about 25mm and a length of about 25mm. The end is a short-end shape. Note that the shape and size of the sampler can be selected according to the specifications, or it can be made using the information provided in the recording. 5.2 Sampling shovel is used to make a sample of stainless steel, blast furnace and other metal materials. The shape is shown in Figure 1 and the dimensions are shown in Table 1. Size 1/mm. Sampling shovel shape. Sampling specification dimensions. Capacity/m. Use the production island insurance two. The first pair of R is not large!
5.3 Container
GB/T467E—2003
The sample tray size is generally about 20r deep and 1:11. It can also be made into a rectangle and used in conjunction with a divider. Its size should also be matched. The sample tray is made of stainless steel, copper, alloy steel, aluminum alloy, etc.
6.1 Sample efficiency
The number of sample portions to be taken for inspection of each batch of products is shown in Table 2
Sampling for batch product inspection
Product batch tray/r
>1n-20
>2u--40
6.2 Sample efficiency
The sample efficiency of the sample shall not be less than/piece
The number of each sample portion is shown in Table 3. The relative error of the quality of each sample taken from the same batch of oil with the same specifications shall not exceed 1u%. Table 3 Sample quantity
The chicken will be again
F12 (PI and 2.8m)
F46 (P50) --F220iP220) :5.6: mm--C, C45 mmt np4n)~50n(11 5ca);:G 45 m
FP2 JC>[fine C.cl u
The net sampling method is used. The sampling method is divided into the uniform interval rubber fence method and the equal mass point interval two sampling method. 1.1 Uniform interval sampling method
The left batch of products is placed on site, and the form section is divided into sections according to the uniform interval to take samples. This method is applicable to the state of uniform storage of products. The size of the product storage area can be calculated by the following formula: the length of the product storage area
sampling area:
the number of samples (pieces)
the maximum number of samples to be taken, and then the samples are taken by machine in each area. 7.1.2 The method of sampling at equal quality intervals
at the production site of the batch of products, select the sections and the number of samples taken in each section according to the quality meter. This protection method is applicable to the product stacking state - the specific procedure is, first determine the selected section. In general, a certain area (code) is estimated to be a certain area, and then the area is determined according to the batch of production. The following formula is used to calculate the number of samples that should be taken for each ton of product. The number of samples per ton of product is not calculated according to the product measurement (): The number of samples per ton of product is calculated according to the total number of samples (): The number of samples of drilling tools is divided into the mother product quality plate (1) according to the K31 heat determination and repair as an integer, then the number of samples of the product to be collected is: For example, a batch of F100 brown steel for export in Rong Enterprise is divided into 0t (100t) and stored in the warehouse A stall 20B stall 121. Stack 3t.For other physical and chemical conditions, the standard is collected.
Micro Table 3 stipulates that the 16 prices to be selected are determined by the sampling version. Formula (2) The mountain grass product is collected at the side of 0, three-center price samples, and the rates are 0.4, 2, .2, 5, 8, .3, and 3.2 respectively. Do the math and you will get about 2, 5, and 3. A, 3, and 8, 5: the price of each portion.
7.2 Sampling operation
7. 2. 1 Standard
7.2.11 Record the name of the product to be sampled, the quality or transportation conditions, and the precautions. 7.2.1.2 Determine the sampling efficiency.
7.2.1.3 Discuss the sampling method and policy implementation, 7.2.1.4 Determine the sample bin size, the method of subdivision, 7.2.2 Required operations
7.2.2.1 Sampling and retention
Take the sample from the sampler, and place it in the material at a 45-degree angle to the water flow direction. Then rotate the selector 1° to make the hole longer. Wait for the product to enter the tube and then collect the sample. Do not rotate the tube to avoid sample leakage. If the sample is too light, the above requirements can be repeated several times. Pour the collected samples into the pusher. Then combine the obtained values into a final group.
7.2.2.2 Sampling shovel sampling
Use the shovel to open the surface of the material, and then use the material chain to "pull" the sample randomly from the material. The sample is put into the sampler. After that, the sample is connected to form a large sample. 8.1 Binary divider reduction method
6.1.1 Binary divider
8.1.1.116 The grid can be divided into two parts. The formula is shown in Figure 2, and the specifications are shown in Figure 1..1.1.2 The divider is made of high-quality materials such as good materials. The material is required to be shrinkable, non-deformed and resistant to screen damage, with a smooth surface, smooth grooves, and no corrosion.||t 8.1.2 Divide the sample into two parts through a divider. 1.2.2 Place the sample and the sample in a divider to divide the sample into two parts and randomly divide them into two parts. 1.2.3 The total weight of the sample is 1.25 times the amount to be tested. 4 Use a two-part divider. CB/T4676—2003 CB/T4676—2003 Part code 416 Dimensions of each part of the two-part divider G=0, 5
Note 1 The dimensions of each part can be proportionally expanded or reduced. No.
Note 2, the three-dividing device is mainly used for F220 (P220) points with light abrasive particles, No. 1 can be used for strong composite materials with fineness of mm 2 grid division method
8.2.1 Sample division shovel
Made of stainless steel and other metal materials to support the sample. See 3. Specification scale pressure table 5 country 3
Sample division shovel style
Storage operation
Part km
Table sample division specification size||tt ||Village original thick electric m
CH/T4676—2003
Live hand product standard
223[46 taels with 0.343rm
1 fee with a thickness of 4mm
8.2.2.1 Place the sample on a dry, flat and uniform electrode (steel cover. Change the plate) and push it into a long pile half pile hall, F22C (1220) and with a thickness of 10mm-~1-mF40 and a narrow 1mm: the product is determined according to the sample, the highest original seat should be more than 25. | |tt||8.2.2.2 Divide the flat pile into grids of not less than 25 grids, as shown in Figure. 8.2.2.3 Use a baffle (materials can be plate, steel plate, wave end plate, wooden board, hard wall, etc., 5 degrees 1 force--3 add) and a sample shovel to the bottom of the large sample, take an equal amount of a shovel from each grid and combine it into a reduced sample. When the number of plates is large, divide the large sample into several equal parts, and then continue the above force method operation. Repeat the operation until the sample obtained is 1.25 of the required control, X
8.3 Circle chain quartering method| |tt||Figure 4 Schematic diagram of network reduction
8.3.1 Combine the sample sheets into a large sample and mix them thoroughly.3.2 Put the large grid into a good device, slowly drop it from the real market, and stack it into a national shape. Then use half-board material to flatten the national shape and divide it into 4 equal parts. Take the diagonal part as the reduction product, and do this repeatedly until the test rod is obtained. See Figure 5. The surface of the material board must be clean and flat. Three: Flattening medical single time classics and material full of one effect 5-dimensional four-division diagram
GB/T 4676—2003
Sample Storage
Samples should be stored in containers that will not change the properties of the product and will not be exposed to harmful substances, and should be accompanied by labels. The contents of the labels include: Product name:
Product specifications;
Product manufacturing unit;
Product batch:
Sampling location!
) Sampler:
g) Joint sample;
b) Other relevant information.
The samples should be kept in safekeeping for 3 hours.
A.1 Detailed sampling device
(Informative Appendix)
Common sampling methods for stored materials
A1.1 Selector sample Figure A.1. Dimensions See Table A.1 Figure A, below Sampler sample Figure
Capsule A1 Sampling required file dimensions
Sampling volume
Degree /mm
Outer diameter ×
Aperture/mcPitch/r00
Effect: Less length Original: rnu
A1.2 The sampler is made of stainless steel, alloy steel, lead alloy and other materials. A.2 Sampling method
Thickness/am
A.2.1 Pick up the sampler and push the sampler sleeve toward the tip to cover the hole. Function and instrument
CH/T 4676—2003
Applicable/Product specification
.125 uu
S0.126 10.0
1.2.2 On the material hole, insert it into the material at a 4~~5\ angle, and the depth should be no less than 2/3 of the material layer. Take samples from the bag, the sampling depth should be at least 1/5 of the material layer (the machine can be turned on halfway) 2.3 Lift the tube, wait for the output to pass through the material hole and fill the grid, then take out the sampler. A, 2, 4 Pour the obtained sample into the sample container. 1.2.5 Squeeze the obtained sample into a large sample.1 Sampling shovel
Made of stainless steel or other metal materials. See sample size table 5 country 3
Sampling shovel style
Storage operation
Part km
Table sampling size
Village thickness m
CH/T4676—2003
Active hand product standard
223[46 taels with 0.343rm
1 fee with a thickness of 4mm
8.2.2.1 Place the sample on a dry, flat and uniform electrode (steel plate). Push it into a long pile of half piles. The product is determined according to the sample size. The maximum original seat should be over 25.
8.2.2.2 Divide the flat pile into grids of not less than 25 grids, as shown in Figure 8.2.2.3 Use a baffle (materials can be plate, steel plate, wave end plate, wooden board, hard wall, etc., 5 degrees 1 force--3 add) and a sample shovel to reach the bottom of the large sample, take an equal amount of a shovel from each grid and combine them into a small sample. When there are many plates, divide the large sample into several equal parts, and continue the above force method to reduce the sample in batches. Repeat the operation of weighing multiple boxes until the sample divided is 1.25 of the required control value. X
8.3 Circular chain quartering method
Figure 4 Schematic diagram of network reduction
8.3.1 Combine the sample pieces drawn from the table into a large sample and mix them thoroughly.3.2 Put the large grid into a cold machine and slowly drop it from the real business plate to form a national shape. Then use half a plate material to flatten the national shape and divide it into 4 equal parts. The diagonal part is used as the reduction product. Repeat this operation until the specified test rod is obtained, see Figure 5. The surface of the material plate must be clean and flat. Three: Flattening medical single time standard and full material one effect 5 Schematic diagram of circular quartering method
GB/T 4676—2003
Sample Storage
Samples should be stored in containers that will not change the properties of the product and will not be exposed to harmful substances, and should be accompanied by labels. The contents of the labels include: Product name:
Product specifications;
Product manufacturing unit;
Product batch:
Sampling location!
) Sampler:
g) Joint sample;
b) Other relevant information.
The samples should be kept in safekeeping for 3 hours.
A.1 Detailed sampling device
(Informative Appendix)
Common sampling methods for stored materials
A1.1 Selector sample Figure A.1. Dimensions See Table A.1 Figure A, below Sampler sample Figure
Capsule A1 Sampling required file dimensions
Sampling volume
Degree /mm
Outer diameter ×
Aperture/mcPitch/r00bZxz.net
Effect: Less length Original: rnu
A1.2 The sampler is made of stainless steel, alloy steel, lead alloy and other materials. A.2 Sampling method
Thickness/am
A.2.1 Pick up the sampler and push the sampler sleeve toward the tip to cover the hole. Function and instrument
CH/T 4676—2003
Applicable/Product specification
.125 uu
S0.126 10.0
1.2.2 On the material hole, insert it into the material at a 4~~5\ angle, and the depth should be no less than 2/3 of the material layer. Take samples from the bag, the sampling depth should be at least 1/5 of the material layer (the machine can be turned on halfway) 2.3 Lift the tube, wait for the output to pass through the material hole and fill the grid, then take out the sampler. A, 2, 4 Pour the obtained sample into the sample container. 1.2.5 Squeeze the obtained sample into a large sample.1 Sampling shovel
Made of stainless steel or other metal materials. See sample size table 5 country 3
Sampling shovel style
Storage operation
Part km
Table sampling size
Village thickness m
CH/T4676—2003
Active hand product standard
223[46 taels with 0.343rm
1 fee with a thickness of 4mm
8.2.2.1 Place the sample on a dry, flat and uniform electrode (steel plate). Push it into a long pile of half piles. The product is determined according to the sample size. The maximum original seat should be over 25.
8.2.2.2 Divide the flat pile into grids of not less than 25 grids, as shown in Figure 8.2.2.3 Use a baffle (materials can be plate, steel plate, wave end plate, wooden board, hard wall, etc., 5 degrees 1 force--3 add) and a sample shovel to reach the bottom of the large sample, take an equal amount of a shovel from each grid and combine them into a small sample. When there are many plates, divide the large sample into several equal parts, and continue the above force method to reduce the sample in batches. Repeat the operation of weighing multiple boxes until the sample divided is 1.25 of the required control value. X
8.3 Circular chain quartering method
Figure 4 Schematic diagram of network reduction
8.3.1 Combine the sample pieces drawn from the table into a large sample and mix them thoroughly.3.2 Put the large grid into a cold machine and slowly drop it from the real business plate to form a national shape. Then use half a plate material to flatten the national shape and divide it into 4 equal parts. The diagonal part is used as the reduction product. Repeat this operation until the specified test rod is obtained, see Figure 5. The surface of the material plate must be clean and flat. Three: Flattening medical single time standard and full material one effect 5 Schematic diagram of circular quartering method
GB/T 4676—2003
Sample Storage
Samples should be stored in containers that will not change the properties of the product and will not be exposed to harmful substances, and should be accompanied by labels. The contents of the labels include: Product name:
Product specifications;
Product manufacturing unit;
Product batch:
Sampling location!
) Sampler:
g) Joint sample;
b) Other relevant information.
The samples should be kept in safekeeping for 3 hours.
A.1 Detailed sampling device
(Informative Appendix)
Common sampling methods for stored materials
A1.1 Selector sample Figure A.1. Dimensions See Table A.1 Figure A, below Sampler sample Figure
Capsule A1 Sampling required file dimensions
Sampling volume
Degree /mm
Outer diameter ×
Aperture/mcPitch/r00
Effect: Less length Original: rnu
A1.2 The sampler is made of stainless steel, alloy steel, lead alloy and other materials. A.2 Sampling method
Thickness/am
A.2.1 Pick up the sampler and push the sampler sleeve toward the tip to cover the hole. Function and instrument
CH/T 4676—2003
Applicable/Product specification
.125 uu
S0.126 10.0
1.2.2 On the material hole, insert it into the material at a 4~~5\ angle, and the depth should be no less than 2/3 of the material layer. Take samples from the bag, the sampling depth should be at least 1/5 of the material layer (the machine can be turned on halfway) 2.3 Lift the tube, wait for the output to pass through the material hole and fill the grid, then take out the sampler. A, 2, 4 Pour the obtained sample into the sample container. 1.2.5 Squeeze the obtained sample into a large sample.
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