Some standard content:
ICS1.048.20
National Standard of the People's Republic of China
G1/T 15724. 1~15724.2—1995
Laboratory glassware
Laboratory glassware-Beaker
Issued on October 24, 1995
Implemented on July 1, 1996
Issued by the State Administration of Technical Supervision
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National Standard of the People's Republic of China
Laboratory glassware
Laboratory lassware Beaker
This standard is not equivalent to the international standard 15038191S25 Laboratory dry ring instrument Subject content and scope of application
GD/T1724.1955
Burning.
This standard specifies the overall product quality, technical requirements, traceability, inspection rules, packaging, pre-transportation and production. This standard is applicable to laboratory glass.
2 Reference standards
Packing conditions, transportation, indication, calibration
Batch inspection, counting, sampling, serial number and market information (applicable to inspection of consecutive batches) GB2828
GE 6S8F
Test method for heat shock test of glassware, test method and classification of glass with water-reducing liquid GU 6FS2
Base Rui in S (water-resistant particle test method and grade G312213 glass equipment expression method
C=/15726 variable Rui instrument internal stress control test method 15728 drum glass and hydrochloric acid corrosion resistance more quantitative test method and classification Q1? Equipment installation system external measurement defect terminology
2 port 30002 glass two-level science line thermal joint non-coefficient test method transportation 3 product packaging
3.1 machine type
divided into low-type burnout and high-type burnout, 3.2 specification series
3. 2.1 Low-yield Xiaogan rod
Low-burning specification series: 5.1C.2550,cc, 150.55, 400.500, 603.800.1339.2cc0.3(0cEu
3.2.2 Molding good cup
High-type teaching system: 50.100,1:0.250,193.300,00800.1c33.2000.30ccm3.3 Volume
Must be effective under the state code
Burned full-inch narrow sequence super reverse The standard narrow quantity is 16% of the full mouth narrow quantity and the standard shot equal quantity. The two sides should not be less than 1mn, and the volume difference should be large. Note: The beaker does not retain the Ding meter, the narrow quantity system must be detected, and there is no phase in the block process. No standard CML, 3.4 structure opening and size
National Hanging Technology Supervision Bureau 1955-10-24 approved
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3.4.1 Upper opening
CH/15724.1-1995
The maximum diameter of the upper opening of the beaker should be 5~15% larger than the outer diameter of the beaker. The transition of the upper edge of the beaker should form a curved line, and the non-parallelism between the upper opening and the grinding surface should be greater than 2*.
3.4.2 Transition radius between the upper and lower parts
For a beaker equal to or greater than 250mL, the transition radius is 10-15% of the outer diameter of the beaker. For a beaker less than 250mL, the transition radius is not less than 5% of the outer diameter of the beaker.
3.4. 3.4.3.1 For the dimensions of the beaker, see Figure 1 and Table 1. 3.2.3.2 For the dimensions of the high-type beaker, see Figure 2 and Table 2. Table 2 Note: The outer diameter and the overall height of the beaker shall be ±5% of the nominal diameter of the beaker. B, T 15724.1:-1995 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0
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4 technical requirements
4.7 quality
GA/T 15724.1:1995
the environment should also have appropriate chemical repair and installation stability of borosilicate glass preparation method, good use of 3.3 through silicon glass processing. 4.1.1 Chemical properties The physical and chemical properties of the glass should meet the requirements of Table 3. The maximum expansion coefficient of the glass should be within 20-30℃. The heat shock of the beaker should be within 5℃. The monitoring method of CB6579 can be used. 4.1.2 The color-reducing agent should be colorless and transparent, with a green color change point. 4.2 The optical density should not exceed 130nm/cm. 4.3 Appearance requirements
The beaker cannot be rotated or shaken
4. 3. 2 Stock
5.$×1*K-
When the water of nominal capacity is poured out, water will form a thin stream and there will be no water drops on the outside of the beaker. Put the beaker full of water on a piece of paper and continue to drink water. When water flows out, it will not flow out from other parts. The area of the bubble is no more than 10mmx10mm. .: The bubbles of am shall not be denser than those specified in Table 4, Table 4
5n-- sc
250--500
G09- 3
: 1---. 5
U. 3-1. U
.1~1.6
1, J~3. U
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GB/15724.1—1995
Continued Table 4
Method: Bottom front proof includes the shape of the bottom and the affected area. 4.3.4 Nodule
5. 5~-3. n
8. 1 - 8. 1
.1~13. U
Length 0.=raml can be a daily symptom, no more than 2 in an area of 10 ram×10 mm, and the 20.5mm nodule cat shall not exceed the current limit of Table 6.
:0~t50
2505G:1
4. 3.5结
. F -- .. 0
G. 5 ~-2. n
2. 1~3. 1
G.5--3. 3
3. - --4. 0
D. 5~ k. 0
结0.3m cannot be measured daily, and shall not exceed within an area of 10cm×10mm! The time shall not exceed the specified value in the table
53--156
25.0--500
559~1000
2 000--5Jco
Society: Standard material should be 5GMm.
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4.3.6 Scratches and injuries
GB/T 15724. 1
No serious internal scratches and injuries are allowed. The length of the minor scratches shall not exceed the provisions of the table? Table 7
Scratches
Tax times. mL
5C--150
25~50c
60C--1 c20
2 )~ 4X:
4.3.7 Tea marks
No serious stripes are allowed (sealing quality comparison). 4.3.8 Titanium bait and mosquito scraps
Allowed to exist
4.3.9 The edge of the glass is full
The single person is in mm
The edge of the glass should be melted (including 25ml) and the total length should not be more than 3mm higher than the drop
4.3.1025ml. The burnt mark below is made of the same material, and no serious appearance that can be observed by the naked eye is allowed. 5 Test method
Measure with a vernier caliper with an accuracy of U. 02 mm 5.2 Material
5.2.1 Expansion coefficient
According to the provisions of ZBQ3CD32.
5. 2.2 Water resistance
According to the provisions of B6588
5.2.3 Acid resistance
According to the provisions of GB/T1=728
5. 2. 4 Resistance to sudden change
Technical code GB-6580
5.3 Internal stress
GB/T1572G regulations
5.4 Appearance requirements
Use the vernier caliper with an accuracy of 0.02 plus m and a 10-fold digital microscope to inspect the thin skin by pricking with a needle. The pierced thin skin is thin. Specifications and specifications
6.1 Inspection categories
Product inspection is divided into factory inspection and type inspection.6.2 Factory inspection (or delivery inspection)
6.2.1 Inspection requirements
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GB/T 15724.1--1995
Production date! When the product is delivered, the product should be inspected according to the requirements of Table B. The qualified products are allowed to be delivered to the customers. When the product is delivered, there should be a meeting to check the inspection items or to ask the customers. 6.2.2 Batch test. The products of the same type delivered at the same time are considered as a batch. 6.2.3 Sampling method. The product should be inspected according to GB-2828. 6.2.5 Inspection level. According to the general inspection level.
6.2.5 The highest quality level
Qualified quality level (AQI.) is 5.
6.3 Type inspection
6.3.1 Inspection items and requirements
Factory-made
Type inspection
The items of type inspection have been changed to all items of the system and requirements. When the test method in Chapter 5 is used for testing, the order meets the requirements. 6.3.2 When one of the following conditions occurs, type inspection shall be carried out; the design of new products or old products for production can be fixed.
After formal production, if there are significant changes in structure, materials, and technology, which may affect the product performance, during normal production, regular or regular production inspection shall be carried out. Type inspection shall be carried out at least once a year: the product has been in production for more than half a year, and when production is resumed: When there is a big difference between the inspection result and the last type inspection, the national quality supervisor shall visually mark the time for type inspection and the subsequent batch inspection. All samples exceeding the standard shall be taken within ten times the quantity of the sample, and the sampling shall be carried out in accordance with 6.2.4. The inspection samples in Article 4.1 shall be prepared according to the difference samples and the required samples in Article 5.2. Inspection shall be carried out according to the specified items in Article 6.4. If all items meet the requirements, the batch of products shall be marked with qualified marking, packaging, transportation and storage. 7.1 Marking 7.1.1 Beaker label The approximate capacity graduation table can be printed on the outside of the beaker body, see Appendix A (special item); a. Label: cloth or 100” Manufacturer’s name or legal standard Standards and standards GB/T 15724:1—1995
When the material is not recognized, the material should be marked: d
The shaft should have a place where it is suitable for sealing. 7.1.2 Other packaging marks
The outer packaging should comply with the relevant provisions of GR191
Product name, this standard number, specification number, net weight, gross weight, volume: manufacturer name, registration mark, production date: d factory, telephone number.
7.2 Packaging
7.2.1 Inner packaging
The inner packaging is a paper box with labels on both ends (product name, specification, quantity. However, the packing quantity should be a multiple of ten. Large paper scraps, foam bags, etc. can be used. Or fill.
7.2.2 Outer packaging
Outer packaging should be box, the sum of length, width and height should not exceed 1.5m, and should be rectangular. The outer packaging should be sealed, and the packaging tape should be tied into a car shape. The packaging should meet the requirements of transportation.
7.3 Transportation
This product is a gas-free material. The packaging should not be disturbed during transportation. Transportation should be properly equipped. 7.4 Storage
The product packaging should be stored indoors. The stacking height should not be more than ten layers. It is strictly forbidden to contact with strong acids, strong oxidants, and double chemicals. Standards and technical network
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Additional instructions:
GB/T 15724.1—1995
Appendix A
Capacity division of beaker
Testing parts)
This standard was proposed by China Light Industry General Association
This standard was drafted by Huang from Beijing Instrument Factory, and was jointly drafted by Dajin Glass Instrument Factory, Shanghai Glass Instrument Factory and Qianchuan Glass Instrument Factory. The main drafters of this standard are Liu Jiajun, Zheng Limei, Chen Tingzhen, Guo Zhanlin and Qian Xiuting.
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After formal production, if the structure, materials and process have changed significantly, which may affect the performance of the product, the product shall be registered regularly or regularly. The type inspection shall be carried out at least once a year: if the product is in production for more than half a year, the product shall be returned when the production is resumed! If the inspection result is significantly different from the last type inspection, the national quality supervisor shall mark the type inspection result. 633 Sampling and subsequent batch specifications
All samples shall be taken within ten batches, and the sampling shall be carried out according to 6.2.4. The inspection samples in Article 4.1 shall be prepared according to the difference samples and the required samples in Article 5.2. Inspection shall be carried out according to the specified items in Article 6.4. If all items meet the requirements, the batch of products shall be marked with qualified marking, packaging, transportation and storage. 7.1 Marking 7.1.1 Beaker label The approximate capacity graduation table can be printed on the outside of the beaker body, see Appendix A (special item); a. Label: cloth or 100” Manufacturer’s name or legal standard Standards and standards GB/T 15724:1—1995
When the material is not recognized, the material should be marked: d
The shaft should have a place where it is suitable for sealing. 7.1.2 Other packaging marks
The outer packaging should comply with the relevant provisions of GR191
Product name, this standard number, specification number, net weight, gross weight, volume: manufacturer name, registration mark, production date: d factory, telephone number.
7.2 Packaging
7.2.1 Inner packaging
The inner packaging is a paper box with labels on both ends (product name, specification, quantity. However, the packing quantity should be a multiple of ten. Large paper scraps, foam bags, etc. can be used. Or fill.
7.2.2 Outer packaging
Outer packaging should be box, the sum of length, width and height should not exceed 1.5m, and should be rectangular. The outer packaging should be sealed, and the packaging tape should be tied into a car shape. The packaging should meet the requirements of transportation.
7.3 Transportationbzxz.net
This product is a gas-free material. The packaging should not be disturbed during transportation. Transportation should be properly equipped. 7.4 Storage
The product packaging should be stored indoors. The stacking height should not be more than ten layers. It is strictly forbidden to contact with strong acids, strong oxidants, and double chemicals. Standards and technical network
All practical standards and industry information are provided below
Additional instructions:
GB/T 15724.1—1995
Appendix A
Capacity division of beaker
Testing parts)
This standard was proposed by China Light Industry General Association
This standard was drafted by Huang from Beijing Instrument Factory, and was jointly drafted by Dajin Glass Instrument Factory, Shanghai Glass Instrument Factory and Qianchuan Glass Instrument Factory. The main drafters of this standard are Liu Jiajun, Zheng Limei, Chen Tingzhen, Guo Zhanlin and Qian Xiuting.
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After formal production, if the structure, materials and process have changed significantly, which may affect the performance of the product, the product shall be registered regularly or regularly. The product shall be inspected at least once a year: if the product is in production for more than half a year, it shall be inspected when the production is resumed! If the inspection result is significantly different from the last type inspection, the national quality supervisor shall mark the inspection result for the type inspection. 633 Sampling and subsequent batch specifications
All samples shall be taken within ten batches, and the sampling shall be carried out according to 6.2.4. The inspection samples in Article 4.1 shall be prepared according to the difference samples and the required samples in Article 5.2. Inspection shall be carried out according to the specified items in Article 6.4. If all items meet the requirements, the batch of products shall be marked with qualified marking, packaging, transportation and storage. 7.1 Marking 7.1.1 Beaker label The approximate capacity graduation table can be printed on the outside of the beaker body, see Appendix A (special item); a. Label: cloth or 100” Manufacturer’s name or legal standard Standards and standards GB/T 15724:1—1995
When the material is not recognized, the material should be marked: d
The shaft should have a place where it is suitable for sealing. 7.1.2 Other packaging marks
The outer packaging should comply with the relevant provisions of GR191
Product name, this standard number, specification number, net weight, gross weight, volume: manufacturer name, registration mark, production date: d factory, telephone number.
7.2 Packaging
7.2.1 Inner packaging
The inner packaging is a paper box with labels on both ends (product name, specification, quantity. However, the packing quantity should be a multiple of ten. Large paper scraps, foam bags, etc. can be used. Or fill.
7.2.2 Outer packaging
Outer packaging should be box, the sum of length, width and height should not exceed 1.5m, and should be rectangular. The outer packaging should be sealed, and the packaging tape should be tied into a car shape. The packaging should meet the requirements of transportation.
7.3 Transportation
This product is a gas-free material. The packaging should not be disturbed during transportation. Transportation should be properly equipped. 7.4 Storage
The product packaging should be stored indoors. The stacking height should not be more than ten layers. It is strictly forbidden to contact with strong acids, strong oxidants, and double chemicals. Standards and technical network
All practical standards and industry information are provided below
Additional instructions:
GB/T 15724.1—1995
Appendix A
Capacity division of beaker
Testing parts)
This standard was proposed by China Light Industry General Association
This standard was drafted by Huang from Beijing Instrument Factory, and was jointly drafted by Dajin Glass Instrument Factory, Shanghai Glass Instrument Factory and Qianchuan Glass Instrument Factory. The main drafters of this standard are Liu Jiajun, Zheng Limei, Chen Tingzhen, Guo Zhanlin and Qian Xiuting.
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