IS 6043 (1970): Copper Phosphate - Zinc Phosphate Dental ... · PDF filefree from lumps or...

Click here to load reader

  • date post

    31-Oct-2019
  • Category

    Documents

  • view

    0
  • download

    0

Embed Size (px)

Transcript of IS 6043 (1970): Copper Phosphate - Zinc Phosphate Dental ... · PDF filefree from lumps or...

  • Disclosure to Promote the Right To Information

    Whereas the Parliament of India has set out to provide a practical regime of right to information for citizens to secure access to information under the control of public authorities, in order to promote transparency and accountability in the working of every public authority, and whereas the attached publication of the Bureau of Indian Standards is of particular interest to the public, particularly disadvantaged communities and those engaged in the pursuit of education and knowledge, the attached public safety standard is made available to promote the timely dissemination of this information in an accurate manner to the public.

    इंटरनेट मानक

    “!ान $ एक न' भारत का +नम-ण” Satyanarayan Gangaram Pitroda

    “Invent a New India Using Knowledge”

    “प0रा1 को छोड न' 5 तरफ” Jawaharlal Nehru

    “Step Out From the Old to the New”

    “जान1 का अ+धकार, जी1 का अ+धकार” Mazdoor Kisan Shakti Sangathan

    “The Right to Information, The Right to Live”

    “!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता है” Bhartṛhari—Nītiśatakam

    “Knowledge is such a treasure which cannot be stolen”

    “Invent a New India Using Knowledge”

    है”ह”ह

    IS 6043 (1970): Copper Phosphate - Zinc Phosphate Dental Cement [MHD 8: Dentistry]

  • IS: 6043.1970

    Indian Standard SPECIFICATION FOR

    COPPER PHOSPHATE - ZINC PHOSPHATE DENTAL CEMENT

    Dental Materials Sectional Committee, CDC 52 Chairman

    COL N. N. BERY Representing

    Ministry of Health, Family Planning, Works, Housing & Urban Development

    Members DR N. K. AGRAWAL

    D R P. K. B~su SHRI D. A. BOND

    S H R I DESMOND DE B E Y N A C SHEEN ( Alternate )

    DR ( MRS ) T. M. S. GINWALLA DR P. R. GUPTA

    DR G. N. KOTHARE

    In p;;er;;L )capacity ( Dental College d Hospital,

    Dr Ahmed Dental College & Hospital, Calcutta Dental Products of India Ltd, Bombay

    Nair Hospital & Dental College, Bombay Directorate General of Technical Development,

    New Delhi Unichem Laboratories Ltd, Bombay

    SHRI P. G. VYAS ( Alternate) SHRI BHUPENDRA B. PATEL Dental Corporation of India, Bombay.

    SHRI NARENDRA M. PATEL ( Alternate ) DR G. B. SHANKWALKAR BRIG WARDEV SINGH

    Government Dental College and Hospital, Bombay Directorate General Armed Forces, Medical Services

    SHRI D. DAS GUPTA, Director ( Chem )

    .

    ( Ministry of Defence ), New Delhi Director General, IS1 ( Ex-o&o Member)

    Secretary DR G. M. SAXENA

    Deputy Director ( Chem ), IS1

    Filling Material Subcommittee, CDC 52 : 1 Convener

    DR S. RAMACHANDRA Department of Health, Government of Mysore, Bangalore

    Members DR N. K. A~RAWAL In personal capacity (Dental College @ Hospital,

    Lucknow ) DR P. K. BASU SHRI D. A. BOND

    Dr Ahmed Dental College & Hospital, Calcutta

    SHRI S. R. SETHNA ( Alternate ) Dental Products of India Ltd, Bombay

    DR G. N. KOTHARE SHRI P. G. VYAS ( Alternate )

    Unichem Laboratories Ltd, Bombay

    I N D I A N S T A N D A R D S I N S T I T U T I O N MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG

    NEW DELHI 1

  • IS : 6043 - 1970

    SPECIFICATION FOR COPPER PHOSPHATE - ZINC PHOSPHATE

    DENTAL CEMENT

    0. F O R E W O R D 0.1 This Indian Standard was adopted by the Indian Standards Institu- tion on 7 December 1970, after the draft finalized by the Dental Materials Sectional Committee had been approved by the Chemical Divi- sion Council.

    0.2 In the preparation of this standard, assistance has been obtained from US Federal Specification U-C-198 a ‘ Copper and zinc phosphate dental cement ‘, USA.

    of 1957, published by the General Services Administration,

    0.3 For the purpose of deciding whether a particular requirement of this standard is complied with, the final value, observed or calculated, express- ing the result of a test or analysis, shaIl be rounded off in accordance with IS : 2-1960*. The number of significant places retained in the rounded off value should be the same as that of the specified value in this standard.

    1. SCOPE

    1.1 This standard prescribes the requirements and the methods of sampling and test for copper phosphate - zinc phosphate dental cement.

    2. REQUIREMENTS

    2.1 Description - The material shall consist essentially of a powder and liquid which, when mixed as directed, shall possess the working qualities specified in 2.4.2.

    2.2 Liquid Component - The liquid shall be essentially a phosphoric acid solution and shall be free from cloudiness, precipitates, deposits, or sediments. The liquid shah be furnished in bottIes in an amount 20 per- cent in excess of that necessary to combine with the total amount of powder in a bottle of full portion size, when mixed to standard testing consistency.

    *Rules for rounding off numerical values ( reuised ) .

    2

  • IS : 6043 - 1970

    2.3 Powder - The powder shall be composed basically of zinc oxide, to which has been added not less than 25 parts of cuprous oxide, and shall be free from lumps or granules. Unless otherwise specified, the powder shall be furnished in bottles, each containing 25 g.

    2.4 Cement

    2.4.1 The cement shall not be irritating to oral tissues or cause objec- tionable discoloration of tooth structure.

    2.4.2 The cement, when mixed as directed and spatulated in the usual dental manner, shall:

    a) harden or set to a condition satisfactory for dental use, b) be free from poisonous and foreign materials, c) not form lumps or granules, and d) not evolve gas.

    2.4.3 Time of Setting - The time of setting shall be not less than 4 minutes, nor more than 10 minutes, when tested as prescribed in A-3.

    2.4.4 Ultimate Compressive Strength - It shall be not less than 1 000 kg/cm2 for specimens crushed 7 days after mixing, when tested as prescribed in A-4.

    2.4.5 Film Thickness - The film thickness, tested as prescribed in A-S, shall be not more than 0.04 mm.

    2.4;6 Disintegration - The disintegration of the cement shall not exceed 0.20 percent by weight after immersion for 7 days in distilled water when tested as prescribed in A-5.

    2.4.7 Arsenic -The cement shal! contain not more than 2 parts per million of arsenic when tested as prescribed in A-6. 2.5 Instructions for Use - Adequate and accurate instructions for proportioning and manipulating the material shall accompany each package of the material. These instructions shall include the powder- liquid ratio, the temperature of the mixing slab, the rate of powder incorporation, and the time of mixing.

    3. PACKING AND MARKING

    3 . 1 P a c k i n g

    3.1.1 The solid and the liquid component shall be individually packed in well made glass bottles, which shall be securely stoppered with a screw cap properly cushioned and having an impervious liner. Each bottle shall be further sealed by a gel or similar viscous cap covering the stopper externally and extending well down the neck of the bottle,

    3

    - - - - - -It -I -

  • IS : 6043 - 1970

    3.1.2 Unit Package - This shall consist of one bottle each of powder and liquid; one measuring pipette made of good quality glass, fitted with a rubber bulb, and suitable in style and design for dispensing the liquid drop by drop; and instructions for use (see 2.5 ), contained in a cardboard box, or as agreed to between the purchaser and the supplier.

    3.2 Marking

    3.2.1 Each individual bottle shall carry a label indicating the name of the material, quantity contained, the manufacturer’s name and recognized trade-mark, if any, and the lot number.

    3.2.2 Each unit package and bulk package shall be suitably marked with the name of the material, quantity of contents and name of the manu- facturer.

    3.2.3 The bulk package and unit package may also be marked with the IS1 Certification Mark.

    NOTE -The use of the IS1 Certification Mark is governed by the provisions of the Indian Standards Institution ( Certification Marks) Act, and the Rules and Regulations made thereunder. Presence of this mark on products covered by an Indian Standard conveys the assurance that they have been produced to comply with the requirements of that standard, under a well-defined system of inspection, testing and quality control during production. This system, which is devised and supervised by IS1 and operated by the producer, has the further safeguard that the products as actually marketed are continuously checked by IS1 for conformity to the standard. Details of conditions, under which a licence for the use of the IS1 Certification Mark may be granted to manufac- turers or processors, may be obtained from the Indian Standards Institution.

    4. SAMPLING

    4.1 The method of preparing samples of the material and the criteria for conformity shall be as given in Appendix B or as agreed to between the purchaser and the supplier.

    APPENDIX A METHODS OF TEST FOR COPPER PHOSPHATE - ZINC

    PHOSPHATE DENTAL CEMENT

    A-l. DETERMINATION OF TESTING CONSISTENCY

    A-l.1 Apparatus -The type of apparatus shall be essentially that shown in Fig. 1. This apparatus consists of two flat glass plates, a weight, a gauge plug and a glass tube of inside diameter approximately 6.5 mm which will deliver 0.50 f 0.02 ml of mixed cement. The combined weight of the top plate and the weig