Standard No.:	GB/T 7962.14-2010
English Name:	Test methods of colourless optical glass—Part 14:Resistance to acid
Chinese Name:	无色光学玻璃测试方法　第14部分：耐酸稳定性
Chinese Classification:	N05    Material and component for instrument and meter
Professional Classification:	GB    National Standard
ICS Classification:	81.040.01 81.040.01    Glass in general 81.040.01
Issued by:	AQSIQ
Issued on:	2011-1-14
Implemented on:	2011-5-1
Status:	valid
Superseding:	GB/T 7962.14-1987 Colourless optical glass test methods; Resistance to acid
Language:	English
File Format:	PDF
Word Count:	4000 words
Price(USD):	110.0
Delivery:	via email in 1 business day

1 Scope This part of GB/T 7962 specifies the test conditions, steps and classification methods for the resistance to acid of colourless optical glass. This part is applicable to the test on resistance to acid of colourless optical glass. 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 693 Chemical reagent - Sodium acetate trihydrate GB/T 6682 Water for analytical laboratory use - Specification and test methods HG/T 3476 Chemical reagent - Acetic acid 36% 3 Terms and definitions For the purposes of this part, the following term and definition apply. 3.1 resistance to acid RA capability of glass to resist erosion of acid solution

Foreword i 1 Scope 2 Normative references 3 Terms and definitions 4 Principle 5 Apparatus and reagents 6 Sample 7 Test steps 8 Classification of results