BuDding a nd Sanitary Pipes In Asbestos C~ment

L.N. 10 0( 1986

Q UALITY CO/liTROI. (UI'ORTS. I~U'ORTS AND LOCAL GOODS)

ACT. 1971

(ACT No. XIII 0 ." 1971 )

BuDding a nd Sanitary Pipes In Asbestos C~ment

Order. 1.986

(Order No. MI5 of 1986)

IN exercise of the powers ronfcrred by ~ion 3 of the Ouality

Control (Elc:ports. Imports and Local Goods) Act. 1971 the Malta Board

of Standards has made the (ollov.'ing order:·

1 T his order may be ciled as the Building and Sanilary Pipes in

Asbestos Cement Order, 1986 and may be referred 10 asO rdcr No. M 15

of 1986.

1.2 This o rder shall bC'COme operati,'c on a dale afte r the lapse o f

twen ty days from the day on which il is laid on the T able of the H ouse of

Represen tati\'CS which date shall be nOlified by the Board in the

Gazette.

1 This order applies 10 asbestos ce ment pipes of nom inal dia-

meter.; ranging from 50 to 300 mm used in building. such as rainwater .

sanitary and sewer connections up to the connection with the main or

common sewer.

1 The pipes sho uld be made essentially of an inorganic hydrau·

lie binder reinforced by asbes tos fibres to which othe r fibres may be

addcd. Thc use of Crocidalyte ( Blue) type ,lSbestos and/or Amosi\e

(Brown) type asbestos is pro hib ited.

1

The pipes ma y be of tWO types

4.1.1

Pipes with socket

4.1.2

Pipes wi th plain ends

1 The eX"ternal surface of the pipes Sh~l ll be regula r 'lnd the

internal surface shall be regular <ln d smooth . If necessary. the pipes shall

be coated internally and/or externally with a suitable coa ting.

1 The nominal diameter of the pipescorrcsponds to the int ernal

diameter (OO rc). tolerances not being taken into account. lbe series of

nominal diameters is shown in Table I.

6.1.1

1llc o\lality is defined by

whe re

Dr is the value corresponding to the maximum or mini·

mum in ternal diameter . in miUime tre:s. of the spigot end of the pipe

o r thcir socket: Dt is thc \lalue of the specified internal diameter. in

mill tmetres of the spigot end of the pipe o r the socket.

6.1.1.1 T he Ollality shall be with in the foll owing limits ac·

co rdin g 10 the nominal diame ter

for nominal diame ters less than 100

0.975 to 1.025

for nom inal diameter.> from 100 to 300

0.98 101.02

6.2 The nominal thicknesses and thc iT tolerances are given In

T able 2.

6.3 For pipes with plain end s. the nominallcnglh corresponds 10 Nominal k""h

the length measured between the ends of the pipes. For pipes with

socke t . see figu re I in the case of a pplied soc ke t and figure 2 in the case

o f a monolithic pipe.

The series of nominal lengths is !>hown in Table 3. The nominal

lengt h of 5.00 m only applies to pipes of nom inal diame ter equal to or

greater than J5Omm.

6.3. 1 The tolerance on the nominal length shall be

Upper deviation: <- IOmm

Lowe r deviation: - 2Omm

1\.4 Wh en tested in accordance wilh the me thod laid down 10 lnt<:mall1)dnoulic

pte .... fC

paragraph 8.1. the pipes shall have no fissure . 1cHkage or sweating.

!igh!n ... .

6.5 When tested in accordancc with th e me thod refc rred to in T ...... · ......

paragraph 8.2. the pipes shall indica te a minimum unit crushing st rength """"m,.

of25 N/mml .

6.6 Whcn tested in accordance wit h the method referred to in L.,."i,udinol

paragraph 8.3. the pipes shall indicate a minimum unit bcndingstrength t-di ....

of 16 N/mml. This test is limited to pipes with a nominal diameter less

than o r equal to ISO.

1 No impon ed or 10011 building Hn d sanitary pipe in asbestOS M or k"p.

cemen t shall be sold. offered or exposed for sale unless it shows clearly

and easily legible

7. 1. 1 the manufacture r's mHrk;

7. 1.2 the words "Danger _ Contains Asbestos" or their

equivalent in Maltese " Periklu - FihH I·Asbestos".

1 The inte rnal h)'draulic pressure tightness test shall be carned M

out on whole pipes. including the sockets if the pipes are socketed.

8.1.1 The pi pes shall be placed on a h}'drau lic press. the

water tightness at the ends being ensured by an appropriate device .

The hydra ulic pressure shall be measured by a pressure gauge

calibrated to gi,'c accurate readings. A manomete r graduated to at

least 0.01 M Pa is re<:ommcnded.

8.1.2 The hydraulic pressure is raised gradually up to 0.05 M

Pa . Th is pressu re is maintained ro r60$CCOods loeheck thallhere is

no fissure , leakage or sweating.

8.2 The transverse cru sh ing test shall be carried out as de-

scribed in I. S.0 . 391 : 1982 .

8.3 The longitudinal bending tcst shall be carried out as

described in I.S.O . 391 : 1982.

T ABLE I

Nominal ])lamdel"S (nun)

50; 60: 70; 80: 100; 125 : ISO; 200: 250: 300

TA I3 LE 2

Nomi nal Thicknt'SWS and Tolera n«s

NomiRl I w . n

" "",inat

To"'""",,

(mm )

·''''kkn ... ("""l

Diamn< r

.. 1.5

1.0

,

+ 2.0

- 1.5

TABLE 3

Nominal Lf: ngths (m)

0.50; LOO : I.SO; 2.00: 2.50: HlO: 4.00: 5.00

N .......... ltngth

I>iomMl "'",,,"

I

Jl--

"

,

.,,~ .. I

FCIIf1I2

Il'J'I'lIbli ~ .. "",·T"'I'iml ,"I-TqI'It,1 • K.,,1I1" -

l'I<bIifhtd b, lit< in/o rmQ/wn [)i" if"," . 1(4)/iI,,,

",,,,,n,

p,,'nli'8 r""

M"""", ~1 " ... po:rijll.I·( h<'" _ ,.,,"""'., Ih. c", ...