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Singapore Standards Package/Series ISO IEC

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SS 213:2022 [Current]

Specification for unplasticised PVC pipes and fittings for soil, waste and vent applications

...The following information shall be shown in lettering of minimum height 5 mm: a) Manufacturers identification; b) Classification sanitary; c) Nominal size; d) Batch identification; and e) The number of this Singapore Standard 5 i...
...Requirements and performance tests for shallow floor traps shall be in accordance with BS EN 1253-1...
...1 Tetrahydrofuran (THF) NOTE 1 CAUTION Extremely flammable May form explosive peroxide Irritating to eyes and respiratory system NOTE 2 Work with this solvent is to be carried out in a well-ventilated fume cupboard...

SS 233:2013 [Current]

Specification for flexible rubber tubing, rubber hose and rubber hose assemblies for use in LPG vapour phase installations

...4 Performance 8...
...1, with a crushing force of 340 N, after removal of the force, the hose shall not show subsequent deformation of collapse, nor shall it leak when subjected to an internal air pressure of 0...
...10 Resistance to bending When tested in accordance with ISO 10619-1 using a minimum radius of curvature of five times (5x) the outer diameter of the test specimen, the deformation in the outside diameter shall be not greater than 10%...

SS 245:2014 [Current]

Specification for glass reinforced polyester sectional water tanks

...2 Performance of panels Mechanical and physical tests (see Table 2) shall be conducted on specimens taken from actual production panels...
...In all cases, all the individual values derived from testing of the indicated number of specimens shall be used to determine conformance with the detailed requirements...
...They shall conform to the requirements as set out in the whole of SS 375...

SS 246:2016 [Withdrawn]

Specification for fused and unfused adaptors

...NOTE 2 The enclosure of an insulation encased class II appliance may form a part or whole of the supplementary insulation, or reinforced insulation...
...forming to the corresponding standard is in full engagement with the adaptor...
...1, modified] NOTE More information concerning small parts can be found in BS 60695-2-11:2001, 3...

SS 254-0:2001 [Withdrawn]

Electrical apparatus for explosive gas atmospheres - General requirements (Users can refer directly to relevant parts of IEC 60079)

...form a layer; 450 C where coal dust is not expected to form a layer (for example due to sealing or ventilation), provided that a) the actual maximum surface temperature is marked on the apparatus, or b) the symbol X is placed after the certificate re...
...form is compatible with the plastic material of the enclosure...
...form is compatible with the material used for the enclosure...

SS 254-1:2001 [Withdrawn]

Electrical apparatus for explosive gas atmospheres - Flameproof enclosures (Users can refer directly to relevant parts of IEC 60079)

...The gap shall be uniform through the conical part...
...The diameters of the cylindrical surfaces of the two parts forming the flameproof joint, and their tolerances, shall ensure compliance with the relevant requirements for the gap of a cylindrical joint as given in table 1...
...form and quality of fit Medium or fine tolerance quality according to ISO 965-1 and ISO 965-3 b Threads engaged 5 Depth of engagement Volume <100 cm 3 Volume >100 cm 3 5 8 mm a Where the pitch exceeds 2 mm, special manufacturing precautions may be nec...

SS 254-10:2003 [Withdrawn]

Electrical apparatus for explosive gas atmospheres - Classification of hazardous areas (Users can refer directly to relevant parts of IEC 60079)

...If a flammable material is released in a way that forms a mist (for example, by spraying) an explosive atmosphere may be formed below the flashpoint of the material, for example...
...4 Availability of ventilation The availability of ventilation has an influence on the presence or formation of an explosive gas atmosphere and thus also on the type of zone...
...All relevant information used should be referred to...

SS 254-11:2003 [Withdrawn]

Electrical apparatus for explosive gas atmospheres - Intrinsic safety “i” (Users can refer directly to relevant parts of IEC 60079)

...Simple apparatus shall conform to all relevant requirements of this standard but need not be certified and need not comply with clause 12...
...Its terminals shall conform to 6...
...1; 4) non-metallic enclosures and enclosures containing light metals when located in the hazardous area shall conform to 7...

SS 254-14:2005 [Withdrawn]

Electrical apparatus for explosive gas atmospheres - Electrical installations in hazardous areas (other than mines) (Users can refer directly to relevant parts of IEC 60079)

...formers and safety isolating transformers Requirements IEC 61024-1:1990, Protection of structures against lightning Part 1: General principles IEC 61024-1-1:1993, Protection of structures against lightning Part 1: General principles Section 1: ...
...1 explosive atmosphere mixture with air, under atmospheric conditions, of flammable substances in the form of gas, vapour, mist or dust, in which after ignition, combustion spreads throughout the unconsumed mixture 3...
...2 explosive gas atmosphere mixture with air, under atmospheric conditions, of flammable substances in the form of gas or vapour, in which after ignition, combustion spreads throughout the unconsumed mixture 3...

SS 254-2:2002 [Withdrawn]

Electrical apparatus for explosive gas atmospheres - Pressurized enclosures 'p' (Users can refer directly to relevant parts of IEC 60079)

...formation of the enclosure ducts, if any, or connecting parts, a safety device shall be fitted to limit the maximum internal overpressure to a level below that which could adversely affect the type of protection...
...If the manufacturer does not provide the safety device, the apparatus shall be marked "X" and the description documents shall contain all necessary information required by the user to ensure conformity with the requirements of this standard...
...2 The safety devices required by this standard (see table 3) form safety related parts of a control system...

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