|
US$209.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 7896-2008: Test method for optical grade synthetic quartz crystal
Status: Valid GB/T 7896: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 7896-2008 | English | 209 |
Add to Cart
|
3 days [Need to translate]
|
Test method for optical grade synthetic quartz crystal
| Valid |
GB/T 7896-2008
|
| GB/T 7896-1987 | English | 239 |
Add to Cart
|
2 days [Need to translate]
|
Testing method for optical--Grade synthetic quartz crystal
| Obsolete |
GB/T 7896-1987
|
PDF similar to GB/T 7896-2008
Basic data | Standard ID | GB/T 7896-2008 (GB/T7896-2008) | | Description (Translated English) | Test method for optical grade synthetic quartz crystal | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | Q65 | | Classification of International Standard | 73.080 | | Word Count Estimation | 9,912 | | Date of Issue | 2008-06-30 | | Date of Implementation | 2009-04-01 | | Older Standard (superseded by this standard) | GB/T 7896-1987 | | Quoted Standard | GB/T 7895-2008 | | Regulation (derived from) | National Standard Approval Announcement 2008 No.11 (Total No.124) | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies test methods of artificial optical crystal. This standard applies to performance testing of artificial optical crystal. | GB/T 7896-2008: Test method for optical grade synthetic quartz crystal---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Test method for optical grade synthetic quartz crystal
ICS 73.080
Q65
National Standards of People's Republic of China
Replacing GB/T 7896-1987
Test methods for artificial optical crystal
Posted 2008-06-30
2009-04-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard replaces 7896-1987 "artificial optical crystal test method" GB/T .
The standards are compared with the GB/T 7896-1987 the following major changes.
--- To increase the "scope 1";
--- Added "2 Normative references";
--- Added "3 artificial optical crystal size, orientation, and rotation";
--- Increased "four pairs of crystal";
--- Added "5 crack";
--- Added "9 stripes";
--- Remove the "sample taken" (Chapter 1 of the original standard);
--- Modification of the "Standard Test Method for inclusions" (the original standard in Chapter 2, Section 6 of this standard);
--- Modify the "optical homogeneity test methods" (the original standard Chapter 4, Chapter 8 of this standard);
--- Modify the original standard term "spectral transmittance" as "spectral transmittance."
This standard is proposed and managed by China Building Materials Federation.
This standard was drafted. Shimmering Special Crystal Technology Co., Ltd. Zhejiang Quartz Crystal Optoelectronic Technology Co., Ltd.
The main drafters of this section. Wang Xiaogang, Huatai Chen, Yin Lijun, Sun Zhiwen, Zhang Shaofeng, Chuan Xu, Sheng Yongjiang.
This standard was first published in 1987.
Test methods for artificial optical crystal
1 Scope
This standard specifies the test method for optical synthetic quartz crystal.
This standard applies to optical performance test artificial quartz crystal.
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard. However, according to research encourages the parties to the agreement
Study whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
GB/T 7895-2008 artificial optical crystal
3 artificial optical crystal size, orientation, and rotation
3.1 Artificial optical crystal and the seed crystal size
Use accuracy of 0.02mm vernier caliper measurement of each dimension of artificial quartz crystal.
3.2 Artificial optical crystal orientation of the seed crystal
Artificial optical crystal orientation of the seed crystal X-ray direction finder should be used for testing.
3.2.1 instruments and appliances
X-ray direction finder, directional accuracy ± 30 ".
3.2.2 Test procedure
Directional instrument calibration, respectively, adjusted to the appropriate counter tube angle (2θ), the corresponding standard sheet discharge to the sample stage, and adsorption using a vacuum pump,
Shake the hand wheel forward or backward to find the peak, the display angle θ can be. The test sample is placed in a sample seed stage, measured three times.
3.2.3 Results
Calculate the average of three measurements.
3.3 rotation
3.3.1 original crystal according to FIG. 1 rotation determination.
Figure 1 optical rotation synthetic quartz crystal
3.3.2 When the crystal plane is destroyed, discrimination method shown in Table 1.
Table 1 instruments discrimination crystal rotation method
L-D-measuring instruments quartz crystal
The cone of light polarization analyzer was contractile ring (eyepiece clockwise rotation) diverge ring (eyepiece clockwise rotation)
Polariscope polariser polarizer is rotated counterclockwise rotate clockwise
Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 7896-2008_English be delivered?Answer: Upon your order, we will start to translate GB/T 7896-2008_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time. Question 2: Can I share the purchased PDF of GB/T 7896-2008_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 7896-2008_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet. Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. If you need your currency to be printed on the invoice, please write an email to [email protected]. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay. Question 5: Should I purchase the latest version GB/T 7896-2008?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 7896-2008 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.
|