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SECTION B - Derry City Council

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APPENDIX 1/5: TESTING TO BE CARRIED OUT BY THE CONTRACTOR (CONTINUED)<br />

Clause Work, Goods or Material Test<br />

Frequency of<br />

Testing<br />

Test<br />

Certificate<br />

Comments<br />

Series 500<br />

501 Pipes for drainage and service ducts Product certification<br />

scheme applies<br />

Vitrified Clay ` Required for<br />

pipes not quality<br />

Concrete-<br />

PC/SRC<br />

Concrete<br />

Prestressed<br />

Iron- cast<br />

Not<br />

exceeding<br />

900 mm dia<br />

marked by an<br />

UKAS or<br />

equivalaent<br />

accredited body<br />

listed in Appendix<br />

B<br />

Iron- ductile<br />

PVC-U<br />

GRP<br />

Plastics, see Table 5/1<br />

Corrugated Steel Manufacturers test Required<br />

Corrugated<br />

steel bitumen<br />

protection<br />

Not<br />

exceeding<br />

900 mm<br />

dia<br />

(AASHTO)<br />

Other materials Required BBA certification (or<br />

equivalent) applies<br />

503 Pipe Bedding Grading and fines<br />

content<br />

Water-soluble sulphate<br />

(WS) content (N)<br />

Oxidisable sulfides<br />

(OS) content and toal<br />

potential sulphate<br />

(TPS) content (N)<br />

Resistance to<br />

fragmentation (N)<br />

1 per week Required<br />

5 per source<br />

5 per source<br />

1 per source<br />

120

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