This specification specifies the technical requirements and test methods for barium, sodium and potassium glass used in military electronic devices. This specification is applicable to barium, sodium and potassium glass used in military electronic devices. SJ 20036-1992 Specification for barium, sodium and potassium glass used in military electronic devices SJ20036-1992 Standard download decompression password: www.bzxz.net
This specification specifies the technical requirements and test methods for barium, sodium and potassium glass used in military electronic devices. This specification is applicable to barium, sodium and potassium glass used in military electronic devices.

GB 191-1985 Pictorial markings for packaging, storage and transportation
GB 9000.1-1988 General principles for chemical analysis methods for electronic glass
GB 9000.2-1988 Analysis of silicon dioxide in electronic glass
GB 9000.6-1988 Analysis of barium oxide in electronic glass (barium sulfate gravimetric method)
GB 9000.9-1988 Flame photometric determination of potassium oxide, sodium oxide and lithium oxide in electronic glass
GB 9000.10-1988 Atomic absorption analysis of lithium oxide, sodium oxide and potassium oxide in electronic glass
GB 9622.1-1988 Test method for density of electronic glass - sink-float method
GB 9622.2-1988 Test method for average linear thermal expansion coefficient of electronic glass
GB 9622.4-1988 Test method for softening point of electronic glass
GB 9622.5-1988 Test method for annealing point and strain point of electronic glass
GB 9622.8-1988 Test method for temperature TK-100 when volume resistivity of electronic glass is 100MΩ.cm
GB 9622.11-1988 Test method for chemical stability of electronic glass against water

Military Standard of Electronic Industry of the People's Republic of China FL5971
SJ20036-92
Locks for Military Electronic Components
Specification for Barium sodium potassium glass formilitary electronic devices and componentsPublished on 1992-02-01
China Electronics Industry Corporation
Implementation on 1992-05-01
Military Standard of Electronic Industry of the People's Republic of China Specification for Barium sodium potassium glass formilitaryelectronicdevicesandcomponents1 Scope
1.1 Subject Content
SJ20036--92
This specification specifies the technical requirements and inspection methods for locks, sodium and potassium glass for military electronic components. 1.2 Scope of Application
This specification applies to sodium and potassium glass for military electronic components. 2 Reference documents
GB191--85
GB 9000.1--89
GB9000.2---88
GB 9000.6--88
GB9000.9—-88
GB 9000.10--88
GB9622.188
GB 9622.2--88
GB 9622.4---88
GB9622.5--88
GB9622.8-88
GB9622.11-88
3 Requirements
3.1 Chemical composition
Packaging, storage and transportation pictorial symbolsbzxz.net
General principles for chemical analysis of electronic glass
Analysis of silicon dioxide in electronic glass
Analysis of oxidation in electronic glass (sulfuric acid lock weight method) Potassium oxide, sodium oxide and Flame photometry of lithium oxide Atomic absorption analysis of lithium oxide, sodium oxide and potassium oxide in electronic glass Test method for density of electronic glass Floating and sinking method Test method for average linear thermal expansion coefficient of electronic glass Test method for softening point of electronic glass
Test method for annealing point and strain point of electronic glass Test method for temperature Tk1o when volume resistivity of electronic glass is 100Ma·cm Test method for chemical stability of electronic glass against water This glass is basically composed of silicon dioxide, potassium oxide, sodium chloride and barium oxide. The specific composition shall comply with the provisions of the contract or be agreed upon by the supply and demand parties. 3.2 Physical and chemical properties
3.2.1 The linear thermal expansion coefficient of glass in the range of 0-300℃ shall be (85.0±2.0)×10-1/℃. 3.2.2 The density of glass shall be 2.610±0.025g/cm. 3.2.3 The softening point of glass shall be 685±10℃. Issued by China Electronics Industry Corporation on February 1, 1992, and implemented on May 1, 1992
3.2.4 The annealing point of glass shall be 485±10℃. 3.2.5 The strain point of glass shall be 445±10℃. SJ20036-92
3.2.6 The temperature Tk-10 when the volume resistivity of glass is 100MQ·cm shall not be lower than 255℃. 3.2.7 The level of water resistance and chemical stability shall not be lower than level 1. 3.3 When glass is processed into powder, its particle size shall be determined by negotiation between the supplier and the buyer. 3.4 Glass powder shall be clean and free of dust, impurities or sticky dirt. 4 Quality Assurance Provisions
4.1 Inspection Responsibility
Unless otherwise specified in the contract or order, the contractor shall be responsible for completing all inspections specified in this specification. If necessary, the ordering party or the superior appraisal agency has the right to inspect any inspection item described in this specification. All products must meet all the requirements of Chapter 3 and Chapter 5 of this specification. The inspections specified in this specification shall become an integral part of the contractor's entire inspection system or quality program. If the contract includes inspection requirements not specified in this specification, the contractor shall also ensure that the products submitted for inspection meet the contract requirements. Quality consistency sampling does not allow the submission of products that are known to be defective, nor can the ordering party be required to accept defective products. 4.2 Inspection classification
The inspections specified in this specification are divided into:
a. Identification inspection;
b. Quality consistency inspection.
4.3 Identification inspection
Identification inspection shall be carried out in laboratories approved by the state. The inspection items shall be carried out in accordance with the provisions of Articles 3.1, 3.2, 3.3 and 3.4. The inspection methods shall be carried out in accordance with the provisions of Articles 4.3.3 and 4.3.4. 4.3.1 Preparation and quantity of samples to be inspected
When each batch of glass is melted, suitable glass is randomly selected from each furnace to prepare samples to be inspected. The preparation and quantity of samples for identification and inspection shall be carried out in accordance with the sample shape, size and method requirements specified in the relevant inspection method standards. 4.3.2 Qualification criteria
If all samples in the test meet the requirements of this specification, the batch of glass is considered to be qualified. Otherwise, twice the number of samples are made from the same batch of materials, and the items that failed in the first test are retested. If the retest still fails, the batch of glass is considered to be unqualified.
4.3.3 Chemical composition analysis method
4.3.3.1 The analysis of silicon dioxide in glass shall be carried out in accordance with GB9000.2. 4.3.3.2 The analysis of sodium oxide and potassium oxide in glass shall be carried out in accordance with GB9000.9. 4.3.3.3 The analysis of barium oxide in glass shall be carried out in accordance with GB9000.6. 4.3.4 Physical and chemical performance test methods
4.3.4.1 The test of the linear thermal expansion coefficient of glass shall be carried out in accordance with GB9622.2. 4.3.4.2 The density of glass shall be tested in accordance with GB9622.1. 4.3.4.3 The softening point of glass shall be tested in accordance with GB9622.4. 4.3.4.4 The annealing point of glass shall be tested in accordance with GB9622.5. 4.3.4.5 The strain point of glass shall be tested in accordance with GB9622.5. 4.3.4.6 The temperature Tk-1c when the volume resistivity of glass is 100Mn·cm shall be tested in accordance with GB9622.8. SJ20036--92
4.3.4.7 The water resistance and chemical stability of glass shall be tested in accordance with GB9622.11. 4.4 Quality consistency inspection
The product shall ensure that the particle size and appearance quality meet the relevant quality acceptance requirements in the contract. 4.4.1 Inspection batch
An inspection batch shall consist of products with basically the same raw materials, the same process and submitted at one time. 4.4.2 Sampling plan
From each batch of glass powder, 1 to 3 bags are randomly selected and samples are taken for particle size and appearance inspection. 4.4.3 Rejected batch
If an inspection batch is rejected, the supplier shall recall the batch of products and reprocess them to correct the defects. The batch of products shall be separated from the new batch and clearly marked as a re-inspection batch. 4.4.4 Inspection method
4.4.4.1 The particle size of glass powder is determined by standard sieve method. 4.4.4.2 The appearance of glass powder is inspected by visual method. 4.4.5 Inspection period
The ordering party shall inspect the received products. If the inspection results do not conform to this specification, it shall be reported to the supplier within one month from the date of receipt of the product, and the supply and demand parties shall negotiate to resolve the problem. 5 Delivery preparation
5.1 Packaging and packing
5.1.1 Unless otherwise specified in the contract or order form, the glass powder should be packed in a firm, sealed, moisture-proof plastic bag, and then packed into a plastic bag after heat sealing to form an inner and outer double-layer package. The certificate of conformity should be placed between the inner and outer packages and then sealed for the second time. Then put it into the outer packaging box according to the contract requirements for storage and transportation. 5.1.2 The storage and transportation diagrams on the outer packaging should comply with the relevant provisions of GB191. 5.2 Marking
In addition to the special markings required by the contract or order form, each inner and outer package should be marked with: Product name:
Standard code:
Quantity:
Name or code of the packing personnel;
Name of the manufacturer;
f. Production date;
The package should have a product certificate of conformity stamped by the quality department. g.
5.3 Transportation and storage
During transportation, vibration, mechanical damage, corrosion, and snow and rain should be avoided. Glass should be stored in a clean, dry, ventilated warehouse with a temperature of -10 to +40°C and a relative humidity of no more than 75%, and there should be no corrosive gas. 6 Notes
6.1 Intended use
The barium, sodium and potassium glasses specified in this specification are intended for use in the electrical insulation sealing of electronic components. 6.2 Contents of order documents
The following contents shall be stated in the contract or order: a.
Name and number of this specification,
Product name and type;
Quantity;
Requirements;
Packaging and packing.
Additional remarks:
SJ20036--92
This specification is proposed by the Science and Technology Quality Bureau of China Electronics Industry Corporation. This specification is under the jurisdiction of China Electronics Technology Standardization Institute. This specification was drafted by China Electronics Technology Standardization Institute and State-owned 774 Factory. The main drafters of this specification are Lin Jingbo and Liu Chengjun. Project code: B95001.
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