COLORLESS OPTICAL QUALITY INDEX

All colorless optical glass will be inspected according to Chinese standard GB903-87 and GB7962.1-7962.23-87.
Index
Grade
Item
Light
constant
Air
bubble
Stripe
Stress
Light absorb
Uniform
Unity
Superior
1～2category
A～B
grade
A～B
grade
2 grade
Conform to national standard
First-class
1～2category
A～B
grade
1C
2 grade
Conform to national standard
Qualified
3category
C grade
1C
3 grade
Conform to national standard
Remarks
We can produce not only the above item but also the products with special requirements.
  Copyright @2008 Nantong JINGXIN Optical Gless Co.Ltd　　pyf@ntjxgb.com  11109295@QQ.com