Standard No.:	GB/T 7962.10-2010
Chinese Name:	无色光学玻璃测试方法　第10部分：耐X射线性能
English Name:	Test methods of colourless optical glass—Part 10:X-rays stability
Professional Classification:	N05 Material and component for instrument and meter
ICS Classification:	81.040.01 Glass in general
Issued by:
Issued on:	2011-01-14
Implemented on:	2011-05-01
Status:	VALID
Replace:	GB/T7962.10-1987 Colourless optical glass test methods; Radiation stability of radiation stable
Language:	English
File Format:	PDF
Word Count:	4000 words
Price(USD):	120 (USD)
Delivery:	via email in 1-3 business day

1 Scope

This part of GB/T 7962 specifies the test methods, test steps and data processing for the X-rays stability of radiation-resistant optical glass.

This part is applicable to the measurement for X-rays stability of radiation-resistant optical glass series 500 in GB/T 903.

2 Normative references

The following documents contain provisions which, through reference in this part of GB/T 7962, constitute provisions of this part. For dated references, subsequent amendments to (excluding correction to), or revisions of, any of these publications do not apply. However, parties to agreements based on this part are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest editions apply to this part.

GB/T 903 Colourless optical glass

3 Terms and definitions

For the purposes of this part, the following terms and definitions apply.

3.1
X-rays stability
stability of optical glass against X-ray irradiation, after X-ray irradiation, the optical density of glass will increase, so the X-ray stability is characterized by the increment in optical density

3.2
optical density
D
common logarithm of reciprocal of white light transmittance T