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YY 0713-2009 English PDF

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YY 0713-2009: Dental gypsum-bonded casting investments
Status: Obsolete

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
YY 0713-2009	English	399	Add to Cart	3 days [Need to translate]	Dental gypsum-bonded casting investments	Obsolete	YY 0713-2009

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Basic data

Standard ID	YY 0713-2009 (YY0713-2009)
Description (Translated English)	Dental gypsum-bonded casting investments
Sector / Industry	Medical Device & Pharmaceutical Industry Standard
Classification of Chinese Standard	C33
Classification of International Standard	11.060.10
Word Count Estimation	10,118
Date of Issue	2009-06-16
Date of Implementation	2010-12-01
Adopted Standard	ISO 7490-2000, IDT
Regulation (derived from)	Industry standard filing Notice 2009 No. 9; industry standard filing Notice 2013 No. 6 (No. 162 overall)
Issuing agency(ies)	State Food and Drug Administration
Summary	This standard specifies the dental gypsum binder casting investment material classification and performance requirements and the corresponding test methods.

YY 0713-2009: Dental gypsum-bonded casting investments

---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.
Dental gypsum-bonded casting investments ICS 11.060.10 C33 People's Republic of China pharmaceutical industry standards YY 0713-2009/ISO 7490.2000 Combined with dental plaster casting investments (ISO 7490.2000, IDT) Posted 2009-06-16 2010-12-01 implementation State Food and Drug Administration issued

Foreword

All technical contents of this standard is mandatory. This standard is identical with ISO 7490.2000 "Dental gypsum bonded casting investment material." This standard is based on ISO 7490.2000 re-drafted. Original International Standard ISO 1562.1993 has been ISO 22674.2006 replaced so in this standard references were modify. This standard was proposed by the State Food and Drug Administration. This standard by the National Standardization Technical Committee of Dental Materials and Devices and equipment. This standard is drafted by. State Food and Drug Administration, Peking University Medical Device Quality Supervision and Inspection Center. The main drafters of this standard. Lin Hong, Li Yuan, Sun Zhihui, Zheng Gang, Zhang. YY 0713-2009/ISO 7490.2000 Combined with dental plaster casting investments

1 Scope

This standard specifies the classification and performance requirements of dental gypsum bonded casting investment material and the corresponding test methods.

2 Terms and definitions

The following terms and definitions apply to this standard. 2.1 A powder mixture consisting of silica and calcium sulfate hemihydrate and/or other refractory component. NOTE. powders may include small amounts of modifier. Category 3 Combined with dental plaster casting investments are classified as follows. --- Type 1; for inlays and crowns. --- Type 2. for full and partial denture base port. Some of the material is not limited to this category of one type.

4 Requirements

4.1 Appearance powder 6.1 Test by naked eye observation, the powder should be uniform, no lumps and foreign matter. Liquidity 4.2 hours when By 6.2 test, the cured material is at least the diameter of type 1 60mm, Type 2 at least 40mm. 4.3 clotting time Press the test measured 6.3 clotting time and coagulation time manufacturers should provide no greater than 20%. If the manufacturer provide for A time range, the coagulation time should the value of the intermediate time range no greater than 20%. 4.4 Compressive strength Press Test 6.4, the compressive strength of the material of a minimum type of 2.3MPa, type 2 minimum 2.6MPa. 4.5 cured line expansion 6.5 Test Press, curable plant expansion should provide a value no greater than 20%. If the manufacturer provide for a range of values, The measured value should be in the middle of the range of values differ by not more than 20%. 4.6 linear thermal expansion coefficient By 6.6 test, linear coefficient of thermal expansion material manufacturer should provide a value no greater than 20%. If the manufacturer provide for a range of values Wai, the measured value should be in the middle of the range of values differ by not more than 20%. 5 sampling, test environment and reconcile 5.1 Sampling Take the same batch sufficient retail packing material at least 5kg. In addition to sealing the packaging material should not give up. If Bulk powder is then mixed thoroughly before testing and should be stored in a moisture-proof container. YY 0713-2009/ISO 7490.2000

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