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है”ह”ह

IS 14317 (1995): Shipbuilding - Preformed rigidpolyisoyanurate foam thermal insulating materials [TED 17:Shipbuilding]

IS14317:1995

JI77c9vm

am ite;r;r +JT tw-t~~l - m

Indian Standard

SHIPBUILDING - PREFORMED RIGID POLYISOCYANURATE FOAM THERMAL

INSULATING MATERIALS - SPECIFICATION

ICS 47.020.05

0 BIS 1995

BUREAU OF INDIAN STANDARDS MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG

NEW DELHI 110002

October 1995 Price Group 3

Shipbuilding Sectional Committee, TE 17

FOREWORD

This Indian Standard was adopted by the Bureau of Indian Standards, after the draft finalized by the Shipbuilding Sectional Commmittee had been approved by the Transport Engineering Division Council.

Preformed rigid polyisocyanurate foam is used for thermal insulation on board ship. Its properties can be varied widely in the process of manufacture to meet both general and specific demands. The general properties of this insulating material shall remain unchanged when accidentally exposed to liquids like fuel oils, diesel oil, lubricating oils, hydraulic oils, freon, salt water etc, normally used on board ships.

This standard covers preformed rigid plastic foams for thermal insulation intended for use on curved and flat surfaces operating at temperatures from 40“ to 80” C. This standard does not cover in-situ formed or sprayed foams.

The Committee responsible for the preparation of this standard is given in Annex B.

For the purpose of deciding whether a particular requirement of this standard is complied with, the final value, observed or calculated, expressing the result of a test or analysis, shall be~rounded off in accordance with IS 2 : 1960 ‘Rules for rounding of numerical values revised’. The number of significant places retained in the rounded off value should be the same as that of the specified value in this standard.

IS 14317 : 1995

Indian standard

SHIPBUILDING - PREFORMED RIGID POLYISOCYANURATE FOAM THERMAL

INSULATING MATERIALS - SPECIFICATION

1 SCOPE

This standard covers the requirements, methods of sampling and test of preformed rigid polyisocyanurate foam slabs, cut and moulded set tions for thermal insulation suitble for use at temperatures upto a range from - 40°C to + 80°C on board ships.

2 REFERENCES

The following Indian Standards are necessary ad- juncts to this standard.

IS No.

1%:1966

3069 : 1994

3346 : 1980

11239

(Part 2) : 1985

(Part 4) : 1985

(Part 5) : 1985

Title

Atmospheric conditions for test- ing (revised)

Glossary of terms, symbols and units relating to thermal insula- tion materials

Method for the determination of thermal conductivity of thermal insulation materials (two slab guarded hot-plate method) (@St revision)

Method of test for cellular ther- mal insulation materials : Part 2 Dimensional stability

Part 4 Water vapour transmission rate

Part 5 Volume percent of open and closed cells

(Part 11) : 1985 Part 11 Compressive strength

(Part 12) : 1988 Part 12 Horizontal burning char- acteristics

(Part 14) : 1992 Part 14 Determination of flam- mability by oxygen index

132% : 1992 Surface spread of flame for ther- mal insulation materials - Method of test

14307

(Part 1) : 1995

(Part 2) : 1995

(Part 3) : 1995

(Part 4) : 1995

Shipbuilding - Deck covering, thermal and acoustic insulation materials - Methods of test : Part 1 Toxicity index

Part 2 Smoke index

Part 3 Non-combustibility

Part 4 Flame penetration

3 TERMINOLOGY

For the purpose of this standard, the definitions of the terms, symbols and units given in IS 3069 : 1994 shall apply.

4 MATERL4I.A

The materials shall consist of fluorocarbon blown rigid polyisocyanurate foam based on the reaction product of poly-function polyol with a compatible isocyanate together with such catalysts and cell modifier as necessary to meet the requirements as laid down in this standard.

5 REQUIREMENTS

5.1 The materials shall conform the requirements given in Table 1 when tested in accordance with the methods prescribed in co1 4, Table 1.

5.2 Sizes and Dimensions

Slabs and sections may be supplied in sizes as agreed to between the purchaser and the supplier. The internal diameter of the pipe- sections shall be the outside diameter of the pipe. The information on outside diameter of the piping shall be supplied by the purchaser to the supplier.

5.3 Tolerance

The dimensions of the product supplied shall not deviate from those specified by more than the tolerances given in Table 2.

Table 1 Requirements for Preformed Rigid Polyisocyanurate Foam Thermal Insulating Materials

(Clauses 5.1,7.1 and 7.2)

Sl No.

(1)

i) ii)

iii)

iv)

v)

vi)

vii)

viii)

ix>

x)

fi) xii)

xiii)

characteristic Requirement

wtl Marl

(2) (3) (4) Apparent density, kg/m3 32 72

Thermal conductivity W/m.k “C 0.02

Compressive strength, kN/m’ 172 -

Dimensional stability, percent - 1

Water absorption, percent by vol - 6

Water transmission, ng/Pasm vapour

a) Moulded sections - 1.5

b) Cut surface (with two surfaces skins intact) - 4.4

Flammability, mm - 25

Flame penetration, min 20 -

Smoke index - 50

Oxygen index 30 -

Toxicity index - 5

Surface spread of flame class10rc1ass2

Non-combustibility Conformity to 6.1

Method of Test, Ref lo IS

(5) 11239 (Part 5) : 1985

3346 : 1980

11239 (Part 11) : 1985

11239 (Part 2) : 1985

11239 (Part 9) : 1985

11239 (Part 4) : 1985

11239 (Part 12) : 1988

14307 (Part 4) : 1995

14307 (Part 2) : 1995

11239 (Part 14) : 1992

14307 (Part 1) : 1995

13286 : 1992

14307 (Part 3) : 1995

Table 2 Dimensional Tolerances for Slabs and Pipe-Sections-and Lags

(Clause 5.3)

gaps exists between abutting legs. The ends shall be flat and normal to the longitudinal exits of the lag.

All dimensions in millimetrea. NOTE-Novaluesarespecified for theirwidth on theouter and inner faces.

Sl No. Dimensions Slabs Ptpc-Scctions

(1) (2) (3) (4)

i) Length *3 +2

ii) Width -c3 *2

iii) Thickness +2 +2 -0

iv) Internal diameter - +1.0 -0

v) Difference in lengths of diagonals of rectangular slabs, Max 5 -

6 WORKMANSHIP AND FINISH

6.4 Moulded Components

All moulded components shall be free from grease or other mould release agent that will adversely reduce the adhesion of insulation, mastics and ad- hesives.

6.5 Colour Identification

Rigid polyisocyanurate foam shall be supplied coloured pink.

7 TEST 6.1 General

7.1 TypeTests

Slabs and sections shall be strong, rigid and uniform to resist damage during handling. Each piece shall be of symmetrical shape and free from visible defects, such as, warping, swelling or bowing that would adversely affect its service qualities.

6.2 Pipe Sections

The type tests shall be carried out on the material to check the conformity with the requirements of the specification as given in Tables 1 and 2. Fresh type tests shall be carried out whenever there is any change in the formulation of the material.

7.2 Production Test

Pipe-sections shall be supplied in two semicircular pieces and the bore shall be concentrically placed. The longitudinally mating surfaces shall be flat and in the same plane, so. that when two pieces are put together no gaps exist between the mating surfaces.

All the tests specified in Tables 1 and 2 (except thermal conductivity, water absorption and water vapour transmission rate) shall constitute produc- tion tests.

8 PACKING AND MAREING

6.3 Radiused and Bevelled Lags 8.-l Packing

The mating bevelled edges shall be flat, so that when they are put together to form a cylinder no

The material shall be packed as agreed to between the purchaser and the supplier.

2

8.2 Marking

The packages shall be legibly and indelibly marked with the following information:

a) Name of the manufacturer and recognized trade-mark, if any ;

b) Length, thickness, width/nominal bore of the material;

C) d)

IS 14317 : 1995

Details of facing, if any; and

Batch or lot number.

9 SAMPLING

The method of drawing representative samples of the material and criteria for conformity shall be as prescribed in Annex A.

ANNEX A

(Clause 9)

SAMPLING OF PREFORMED RIGID POIXISOCYANURATE FOAM THERMAL INSULATING MATERIALS

A-l SCALE OF SAMPLING

A-l.1 Lot

All the material of the same density produced under essentially the same conditions of manufac- ture shall be grouped and each such group shall constitute a separate lot.

NOTE - The purchaser and the supplier may mutually agree to term the material manufactured during a certain period as a lot. It is recommended that an 8 -hour production under essentially same conditions may be termed as a lot.

A-2 DETERMINATION OF SAMPLE SIZE

A-2.1 Tests for the conformity to the requirements of the specification shall be done on each lot separately. For each of the characterstic listed in Table 1, only one slab shall be tested from a lot of any size. For size and dimensions and workmanship and finish, the number of slabsto be selected from a lot shall be in accordance with Table 3.

A-2.2 The samples shall be selected at random from the lot and to ensure randomness of selection, random number tables shall be used. In case such a table is not~available, the following procedure may be adopted.

Starting from any slab in the lot, count them as 1, &3, up to F and so on, where F is the integral part of N/n (N being the lot size and n being the number of slabs to be selected). Every rth slab thus counted shall be withdrawn from the lot to give samples for test.

A-3 NUMBER OF TESTS

A-3.1 From each of the samples selected according to A-2.2, test specimens necessary for carrying out the various tests specified in this standard shall be taken, care being exercised to exclude some amount of wool from the top of the slab.

A-3.2 Tests for the determination of all charac- teristics specified in this standard shall be con- ducted on each of the test specimens drawn from the slab as obtained under A-3.1.

A-3.3 Criteria for Conformity

The lot shall be declared as conforming to the requirements of this standard if the different test results obtained under A-3.2 meet the cor- responding requirements given in the standard in- dividually.

Table 3 Scale of Sampling (Clause A-2.1)

R~UiMlIClIl Lot size (Iv)

h r .

uplo 201 to300 301 to 500 501 to 800 801 to900 1300 t above

(1) (2) (3) (4) (5) (61 (7>

No. of slabs to be sekcted (n)

9 Si and dimensions 5 6 7 8 9 10

ii) Workmanship finish 5 6 7 & 9 10

3

IS 14317:1995

ChOhlllPl Cm K K L~HANA

Members

SHRI B. C. BAK.SHI

ANNEX B

(Foreword)

COMMITTEE COMPOSITION

CDR D. KUMAR (,4l&mdre) SHRI S. N. BA~~I

SHRI S. K BOSE (Alremure)

SHRI S. K BHA~ SHRI K K TWARI (&We)

SHRI SUBIR CHAKRAVAR~

SHRl s. CHAKRAvARTy (Altemaze)

DEPV~Y CHIEF SURVEYOR

SHRI k K CHOP&+ SHRI D. G. SARANGDHAR (Alfemure)

SHRI JAVWANT Y. CHOWGULE

SHRl k R. I. HAVALDAR (AlternOte)

HEAD OF DESIGN DEPARTMENT

HEAD OF STANDARD CELL (Alternate)

SHRI A. K SEN

SHRI G. StmRh%~ (&cmate) SHRI P. R. GOVIL

SHRI M. K AGARWAL (Alremare) R. ADM Y. N. INAMDAR

SHRI JOSEPH ISAAC

SHR~ U. S. BHOWMICK (Alternate)

SHRI MADAN I.&_ KOCHAR

SHRI P. K BANERJEE (Alternate)

CMDE R. K BHATIA CMDE N. P. GLWIA (Al-e)

C~pr H. K D. PATEL

SHRI K PREMKUMAR LT CDR S. S. JASWAL

SHR~ K R. R. CHOUDHARY (Alrematc)

SHRI R. SEN

SHRI A. SENGUITA

SHRI R. BHAVE (Ahnare) SHIU G. SINHA

SHRI s. K HALDER (Altemnre)

CAF~KS.S~~D sHRls.sRINIVASAN

SHRI K P. RAO (Alremure) SHRI N. S. JUDGE

Director (Transport Engineering)

Shipbuilding Sectional Committee, TE 17

Repraenring Institution of Naval Architects, Bombay

Directorate of Quality Assurance (Warship Project), Ministry of Defence, New Delhi

Garden Reach Shipbuilders & Engineers Ltd, Calcutta

DGTD, New Delhi

Calcutta Port Trust, Calcutta

DG Shipping;Bombay Indian Register of Shipping, Bombay

Small Shipownets Association, Goa

Mazagon Dock Ltd, Bombay

The Shipping Corporation of India, Bombay

Ministry of Surface Transport (SBR), New Delhi

The Institute of Marine Engineers (India) , Bombay Cochin Shimard Ltd, Cochin

American Bureau of Shipping, Bombay

D;rectorate General of Navai Designs, New Delhi

The Indian National Shipowners Association, Bombay Goa Shipyard Ltd, Goa Directorate of Standardization, Ministry of Defence, New Delhi

Chowgule Steamships Ltd, Bombay Lloyd’s Register of Shipping, Bombay

Flakt India Ltd, Calcutta

Oil & Natural-Gas Commission, Dehradun Hindustan Shipyard Ltd, Visakhapatnam

Director General, BIS (I%officio Member)

Member Secretary SHRI N. S. JUDGE

Director (Transport Engineering), BIS

(Continued on pa@)

IS 14317 : 1995

(Continued from page 4)

*D&k Covering, Partitions and Insulation Subcommittee, TJZ 17 : 6

convener SHRIkK.SEN

iuembm SHRIN.KCHLJGH(.~Z~~WZ~ toShriA.K.Sen) SHRISKBOSE

SHRISHYAMALKUMARDA~A(A~~~~I~~) SH~UG.KREHNAREDDY

SHRIR.SAN-~A~~AN (Alternate) SHRI H. M. NANDHEOLYAR CDRM.M.SINGH

CDR C.S.M.RAI(Akmate) SHRIN.SRlNIVAS

SHIU &WSHIK DAS (Al&?mOre) SHIUT.TIl-IJS

SHRI C.S.MANOJ (Almate) SHRIRAhUNM.PA'IEL SHRI S. BANSAL

SHFURAHULSOOD (Almute)

Representing The Shipping Corporation of India Ltd, Bombay

Garden Reach Shipbuilders & Engineers Ltd, Calcutta

Hindustan Shipyard Ltd, Visakhapatnam

Indian Linoleums Ltd, 24 Parganas Indian Navy, New Delhi

Lloyd Insutlations (India) Pvt Ltd, Bombay

Mazagon Dock Ltd, Bombay

The Bhor Industries PrivateLtd, Bombay U P ‘IXviba FibtegIass Ltd, New Delhi

5

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BIS is a statutory institution established under the Bureau ofIndian Standards Act, 1986 to promote harmonious development of the activities of standardization, marking and quality certification of goods and attending to connected matters in the country.

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Review of Indian Standards

Amendments are issued to standards as the need arises on the basis of comments. Standards are also reviewed periodically; a standard along with amendments is reaffirmed when such review indicates that no changes are needed; if the review indicates that changes are needed, it is taken up for-revision. Users of Indian Standards should ascertain that they are in possession of the latest amendments or edition by referring to the latest issue of ‘BIS Handbook’ and ‘Standards Monthly Additions’.

This Indian Standard has been developed from Dot : No. TED 17 ( 036 ).

Amendments Issued Since Publication

Amend No. Date of Issue Text Affected

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