GB/T 27804-2011 English PDF

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GB/T 27804-2011: Calcium fluoride
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 27804-2011	229	Add to Cart	3 days	Calcium fluoride	Valid

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Basic data

Standard ID: GB/T 27804-2011 (GB/T27804-2011)
Description (Translated English): Calcium fluoride
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G12
Classification of International Standard: 71.060.50
Word Count Estimation: 10,177
Date of Issue: 2011-12-30
Date of Implementation: 2012-06-01
Quoted Standard: GB/T 191-2008, GB/T 5195.6-2006, GB/T 5195.8-2006, GB/T 5195.10-2006, GB/T 6678, GB/T 6682-2008, GB/T 8170, HG/T 3696.1, HG/T 3696.2, HG/T 3696.3
Regulation (derived from): Announcement of Newly Approved National Standards No. 23 of 2011
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 the requirements for calcium fluoride, test methods, inspection rules and signs, labels, packaging, transport and storage. This standard applies to the manufacture of optical glass, optical fiber, enamel, ceramics and other materials used in calcium fluoride.

GB/T 27804-2011: Calcium fluoride

---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.
Calcium fluoride ICS 71.060.50 G12 National Standards of People's Republic of China Calcium fluoride Issued on. 2011-12-30 2012-06-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. The standard proposed by China Petroleum and Chemical Industry Association. This standard by the National Standardization Technical Committee of Chemical Inorganic Chemical Technical Committee (SAC/TC63/SC1) centralized. This standard was drafted. CNOOC Tianjin Chemical Research Institute, Foshan Municipal Quality Supervision and Testing Center, Fluoride Chemical Co. has Ltd., Zhejiang Chemical Research Institute Co., Ltd. The main drafters of this standard. Li Guangming, Zhang Gao Qi, Ye Wenhao, Shiwan Jun, Zhuhai Yun. Calcium fluoride

1 Scope

This standard specifies the requirements for calcium fluoride, test methods, inspection rules and signs, labels, packaging, transport and storage. This standard applies to the manufacture of calcium fluoride optical glass fiber, enamel, ceramics and other materials used.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 191-2008 Packaging - Pictorial signs Determination of GB/T 5195.6-2006 phosphorus content of fluorite Determination of GB/T 5195.8-2006 fluorite silica content Determination of GB/T 5195.10-2006 fluorite iron content phenanthroline spectrophotometry GB/T 6678 General Principles for Sampling Chemical Products Laboratory use specifications and test methods GB/T 6682-2008 Analysis GB/T 8170 repair numerical representation about rules and limit values \u200b\u200band judgment HG/T 3696.1 inorganic chemical products, chemical analysis standard solution, Part 1 - Preparations. The standard solution Preparation HG/T 3696.2 inorganic chemical products, chemical analysis standard solution, Preparations Part 2. Impurity Standards Preparation of the solution HG/T 3696.3 inorganic chemical products, chemical analysis standard solution, Preparations Part 3. Formulation and preparation Preparation products 3 formula, relative molecular mass Formula. CaF2 Molecular Weight. 78.07 (according to 2007 international relative atomic mass)

4 Classification and designation

Calcium fluoride divided into two categories. Class Ⅰ. mainly used in the manufacture of optical glass, optical fiber and other raw materials. Ⅱ class. mainly used for enamel, ceramic and other raw materials.

5 Requirements

5.1 Appearance. white powder. 5.2 Analysis of indicators of calcium fluoride according to the standard testing shall comply with the technical requirements in Table 1. ......

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