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“Step Out From the Old to the New”

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“The Right to Information, The Right to Live”

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“Knowledge is such a treasure which cannot be stolen”

“Invent a New India Using Knowledge”

है”ह”ह

IS 15876 (2009): Ships and marine technology - Manholeswith bolted covers [TED 17: Shipbuilding]

[5 15876 : 2009ISO 5894 : 1999

Indian Standard

S IPS AND MARINE TECHNOLOGY - MANHOLESWITH BOl ED COVERS

ICS 47.020.10

© SIS 2009

B UREAU Of I N Di A N STANDARDSMANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG

"NEWDELHI 110002

Apri/2009 Price Group 4

ts 15876: 2009@SO 5894: 1999

Indian Standard

SH~PS AND MAR~NE TECHNOLOGY MANHOLESW~TI., BO TED COVERS

1 Scope

This International Standard specifies requirements for watertight and oillight manholes of the current type withbolted covers, for general shipboard use other than for pressure vessels.

It specifies the dimensions for the holes in the prating and the number, size and position of the fasteners. All formsof manhole, whether of raised coaming, surface mounted or recessed cover types, shall conform to th~se principalparticulars.

The details of the manholes shall be the responsibility of the manufacturer.

NOTE Users of this International Standard should note that, whi:e observing the requirements of the standard, they shouldat the same lime ensure compl iance with such statutory requirements. rules and regulations as may be applicable to theindividual ship concerned.

2 Normative reference

The following normative document contains provisions which, through reference in this text , constitute provisions ofthis tnternationat Standard. For a dated reference, subsequent amendments to, or revisions of, the publications donot app ly. However, parties fa agreements based on this International Standard are encouraged to investigate thepossibility 'of applying the most recent edition of the normative document indicated below. For an undatedreference, the latest edition of the normative document referred to applies. Members of ISO and lEG maintainregisters of currently valid International Standards. .

ISO 262: 1998, ISO general-purpose me/ric screw threads - Selectedsizes for screws, bolts and nuts.

3 Typical forms, nominal sizes and dimensions

All dimensions are given in milimetres.

Manholes shall be classified as type 0 or E according to nominal sizes (see Figures 1 to 3 and Table 1).

The dimensions of the manholes and the spacing of the fasteners shail be in accordance with Figures 1 to 7 andTables 1 and 2.

The nominal size 1.1 .< b 1, shall correspond to the length and breadth of the clear opening as given in Figures 1 to·3.

The thread of fasteners (nuts and bolls) shall be in accordance with ISO 262.

NOTE 1 Figure 1 shows examples of surface mounted and raised coaming forms of manholes.

The recessed form of manholes shall be similar. In order to ensure interchangeability of covers and gaskets, thedimensions of these components and the fastener coord inates shall also be as given in this International Standard.

NOTE 2 Figur,,: 1 shows welded studs as an example. Other reliable joints between the studs and plate ring are perrnisslbla,

1

IS 15876: 2009ISO 5894: 1999

Key

Cover

2 Gasket

3 Plate rinq

4 Raised coarrunq

I •

Lz x 0 2 H2O

~~ ~ ;::

L1

Key

1 Fastener M20, hole 2' 24 mm2 Clear o'pening

Figure 2 - Manhole with cover type 0 (oval)

rs ~5876 : 2009~SO 5894: 1999

IIt

~'1

IIII

I(

II

Key

1 Fastener M20. hole 0 24 mm2 Clear opening

Figure 3 - Manhole with covbr type E (elliptical)

3

IS 15876: 2009ISO 5894: 1999

Table 1 - Types, nominal sizes, preferences and s izes

Dimensions in mlillrnetres

Nominal size SizeType

Preference 1 Pre ference 2 L, L2 L3 b, b2 b3

- 450 x 350 a 450 470 570 350 370 4700 600 x 400 - 600 620 720 400 420 520

- 800 x 600 800 820 920 600 620 720E - 800 x 400 800 830 930 400 430 530

a Nat sunable as access opening; lhe sizesare 100 small. A safe passing through cannot be ensured.

4 Fastening details

Detai ls of fastener coordinates for manholes of types 0 and E are given in Figures 4 to 6 and In Table 2.

Figure 4 - Fastene r coordinates for manhole typ e 0 , nominal sizes 450 mm x 350 mm and600 mm )( 400 mm (shown 600 mm x 40 0 mm )

4

IS 15876: 2009ISO 5894: 1999

-( r I._ ._ "-z

~l"'=l

/ -Q I .Q r-:.I I -

ts ~ 5$1~ : ~~~~tso 5$~4}: 11~~~

Table 2 - Fastener coordinates and] numbers

Dimensions in millimelres

Type 0 E

\\lominal sizes 450 x 350 600 x 400 800 x 600 800 x 400

\\lumber of·fasiteners 16 20 26 ,24

Cool"dinaites L4 ±0,5 260 335 437 437olf fasteners

48b4 ±O,5 47 49 46

Ls ±O,5 218 298 409 386

bs ±0,5 135 135 142 122

Ls ±0,5 142 231 356 311

bs ± 0,5 194 201 224 175

L7 ±0,5 48 143 282 226

b7 ±0,5 215 236 287 211

La ±O,5 - 48 194 137ba ±0,5 - 240 327 233Lg ±0,5 - - 98 46bg ±0,5 - - 340 244

Auxiliary sizes (el) - - - 890(e2) - - - 490(r) 215 240 340 -

(m) 50 100 100 -

IS 15876 : 2009ISO 5894: 1999

5 Geometrical design of the ellipses

AB : Large axis

CD: Small axis

B

Figure 7 - Des ign of the ellipses

6 Materials

Cover plate. rinQ and/or coarnrnq shall be of ship's quality mild steel or shall be of equivalent welding qual ity.Minimal tensile strengt h' 400 N/mrn2,

Studs ana screws snall be of steel and of mechanical property class 4 8 min imum and 4.6 minimum respectively.

Studs. screws and nuts of equivalent corrosion-resistant steel are permissible.

The gaske t material shall be suitable for service in contact with oil, sea water and fresh water.

7 Quality of manufacture

The steel plate and sections shall be flat and free from pitting, reasonably clean and sufficiently smoothfor a satisfactory [omt to be made without recourse to machining the surface.

The gasf:et rnatenal shall have a thickness appropriate to the intended service.

The dimensional accuracy of the manho le cover, and of the gasket and of the drilling and spacing of the holes forfasteners shall De such as to ensure interchangeability of these components (see also Table 2).

The access openings shal l be free from rouqh edges or surfaces likely to cause inju ry to the hands .

7

US '1l5875: 2009rso 58~41: '1l S99

8 IDesignatioL1l

Manholes with bolted covers conforming to this International Standard shall be designated by the followingindications, in the order given:

a) denomination: manhole;

b) number of this International Standard: ISO 5894;

c) type (code letter), as specified in clause 3;

d) nominal size. as specified in clause 3.

EXAMPLE

Designation of a manhole with a bolted cover in accordance with this International Standard. type O. with the nominal size600 mm x 400 mm: .

Manhole ISO 5894 - 0 - 600 x 400

8

. GMGIPN-:"39BIS/ND/09-300 .I

Shipbuilding Sectional Committee TED 17

NATIONAL FOREWORD

This Indian Standard which is identical with ISO 5894 : 1999 'Ships and manne technology -- Manholeswith bolted covers' issued by the International Orqanizauor: for Standardization (ISO) was adopted by theBureau of Indian Standards on the recommendation of the Shipbuilding Sectional Committee and approval ofthe Transport Engineering Division Council.

The text of ISO Standard has been approved as suitable for publication as an lndian Standard withoutdeviations. Certain conventions are, however, not identical to those used in Indian Standards. Attention isparticularly drawn to the following:

a) Wherever the words 'International Standmd' appear referring to this standard, they should be read as'Indian Standard'.

b) Comma (,) has been used as a decimal marker III the International Standard while In Indian Standards,the current practice is to use a point (.) as the decimal marker.

In this adopted standard relerenco appears to the tollowmq tnternatronal Standard for which lndran Standardalso exists. Tho corresponding Indian Standard, which IS to be substituted In Its place, IS listed below alongwith Its degree of equivalence for the edition indicated:

Internat.onal Standard

ISO 262: 1998 General purpose metncscrew threads -- Selected sizes forscrews, bolts and nuts

Corresponding Indian Standard

IS 4218 (part 4) : 2001 ISO Generalpurpose metric screw threads: Part 4Selected sizes for screws. bolts andnuts (second revistom

Degree of Equivalence

Identical

For the purpose of deciding whether a particular requirement of this standard is compiled with, the finalvalue, observed or calculated expressing the result of a test or analysis, shall be rounded off in accordancewith IS?: 1960 'Rules tor rounding off numerical values (revised)'. The number of siqnitrcant places retainedin the rounded off value should be the same as that of the specified value in this standard.

Bureau of Indian Standards

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

Copyright

BIS has the copyright of all its publications. No part of the these publications may be reproduced inany form without the prior permission in writing of BIS. This does not preclude the free use, ir. thecourse of implementing the standard, of necessary details, such as symbols and sizes, type or gradedesignations. Enquiries relating to copyright be addressed to the Director (Publications), BIS.

Review of Indian Standards

Amendments are issued to standards as the need arises on the basis of comments. Standards arealso reviewed periodically; a standard alongwi th amendments is reaffirmed when such review indicatesthat 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 oredition by referring to the latest issue of 'BIS Catalogue' and 'Standards: Monthly Additions '.

This Indian Standard has been developed.from Doc No.: TED 17 (654).

Amendments Issued Since Publication

Amend No. Date 'of Issue

BUREAU OF INDIAN STANDARDS

Text Affected

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