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GB/T 36265-2018 English PDF (GBT36265-2018)

GB/T 36265-2018 English PDF (GBT36265-2018)

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GB/T 36265-2018: Infrared optical glass

This Standard specifies the classification, naming, requirements, test methods, inspection rules, marking, packaging, transportation and storage of infrared optical glass. This Standard is applicable to infrared optical glass material that is used to manufacture infrared optical component.
GB/T 36265-2018
GB
NATIONAL STANDARD OF THE
PEOPLE REPUBLIC OF CHINA
ICS 81.040.10
Q 37
Infrared Optical Glass
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ISSUED ON. JUNE 7, 2018
IMPLEMENTED ON. MAY 1, 2019
Issued by. State Administration for Market Regulation of the PEOPLE
Republic of China;
Standardization Administration Committee of the PEOPLE
Republic of China.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative References ... 4
3 Terms and Definitions ... 5
4 Classification and Naming ... 5
5 Requirements... 6
6 Test Methods ... 8
7 Inspection Rules ... 10
8 Marking, Packaging, Transportation and Storage ... 11
Appendix A (informative appendix)... 12
Appendix B (normative appendix) ... 14
Infrared Optical Glass
1 Scope
This Standard specifies the classification, naming, requirements, test methods, inspection rules, marking, packaging, transportation and storage of infrared optical glass.
This Standard is applicable to infrared optical glass material that is used to manufacture infrared optical component.
2 Normative References
The following documents are indispensable to the application of this Standard. In terms of references with a specified date, only versions with a specified date are applicable to this Standard. The latest version (including all the modifications) of references without a specified date is also applicable to this Standard.
GB/T 191 Packaging - Pictorial Marking for Handling of Goods
GB/T 7962.7 Colorless Optical Glass Test Methods - Examination Method for Extent of Stripe
GB/T 7962.8 Test Methods of Colorless Optical Glass - Part 8. Bubble
GB/T 7962.14 Test Methods of Colorless Optical Glass - Part 14. Resistance to Acid
GB/T 7962.15 Test Methods of Colorless Optical Glass - Part 15. Resistance to Humidity
GB/T 7962.16 Test Methods of Colorless Optical Glass - Part 16. Linear Thermal Expansion Coefficient, Transformation Temperature and Yield Point Temperature GB/T 7962.18 Test Methods of Colorless Optical Glass - Part 18. Knoop Hardness GB/T 7962.20 Test Methods of Colorless Optical Glass - Part 20. Density GB/T 14148-2011 Glass Blank of Ophthalmic Lenses
GB/T 32561.2 Measuring Method for Chalcogenide Infrared Optical Glass - Part 2. Degree of Stripe
GB/T 32561.3 Measuring Method for Chalcogenide Infrared Optical Glass - Part 3. Impurity
the test value of n4 and n10.6 and the nominal value of n4 and n10.6.
6.2 Infrared Transmittance
Infrared transmittance can be obtained through the test conducted in accordance with GB/T 36403; the average transmittance of required band can be calculated. 6.3 Impurity
Medium-wave infrared optical glass. conduct the test in accordance with impurity test method stipulated in GB/T 7962.8.
Long-wave infrared optical glass. conduct the test in accordance with impurity test method stipulated in GB/T 32561.3
6.4 Degree of Stripe
Medium-wave infrared optical glass. conduct the test in accordance with stripe degree test method stipulated in GB/T 7962.7.
Long-wave infrared optical glass. conduct the test in accordance with stripe degree test method stipulated in GB/T 32561.2.
6.5 Surface Defect
Conduct the inspection with measuring instrument and magnifier (division value ??? 0.02 mm).
6.6 Crack
Please refer to Appendix B for the method of testing cracks in infrared optical glass. 6.7 Edge Chip
Conduct the inspection with measuring instrument and magnifier (division value ??? 0.02 mm).
6.8 Dimensional Deviation
Deviation of length and diameter. conduct the test with measuring instrument (division value ??? 0.1 mm). Randomly select 3 different positions and conduct the test; take the average value of the results.
Deviation of thickness. use measuring instrument (division value ??? 0.1 mm) to measure the thickness of two symmetrical dots on the same meridian (5.0 mm from the edge); calculate the deviation of thickness; there shall be at least 4 measuring dots on each model; the maximum value of the thickness deviation shall be taken.
6.9 Resistance to Humidity
7.4 Sampling and Determination
Sampling and determination shall be implemented in accordance with stipulations in Chapter 7 in GB/T 14148-2011.
8 Marking, Packaging, Transportation and Storage
8.1 Marking
8.1.1 In terms of each batch of products, the certification shall indicate manufacturer?€?s name and address, product standard number, nameplate, specification, quantity, batch number, exit-factory number, inspection data and exit-factory date.
8.1.2 In terms of each batch of products, the packing list shall indicate manufacturer?€?s name and address, product standard number, nameplate, specification and quantity. 8.1.3 The external packaging box shall indicate manufacturer?€?s name, address and trademark, product nameplate, specification, quantity, shipment date, standard number and pictorial marking of packaging shall comply with stipulations in GB/T 191. 8.2 Packaging
Isolation packaging shall be adopted in single piece of product; products shall be tightly placed in the internal packaging box. Packaging box shall be tightly filled up. 8.3 Transportation and Storage
8.3.1 Products shall be stored in dry and ventilated warehouse; keep away from rain and humidity.
8.3.2 During transportation, products shall not be collided or shaken; products shall be handled slightly.

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