Courtesy: Jewellery hall marking service, gold hallmark services Ancient Byzantine hallmarks The control or inspection of precious metals was an ancient concept of examination and marking, by means of inspection stamps (punch marks). The use of hallmarks, at first on silver, has a long history dating back to the 4th century AD—there is evidence of […]
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Courtesy: Jewellery hallmark service, gold hallmark services The testing of the jewelry as well as the marking is done in approved Assaying & Hallmarking Centres across the nation. These are private undertakings approved as well as monitored by the BIS. Legal status The mandatory status of hallmarking gold jewelry sold in India, although declared, is […]
Courtesy: Jewellery hallmarking service gold hallmark services The BIS Hallmark is a hallmarking system for gold as well as silver jewellery sold in India certifying the purity of the metal. It certifies that the piece of jewellery conforms to a set of standards laid by the Bureau of Indian Standards, the national standards organization of India. India is the second biggest market for gold and its jewellery. […]
Courtesy: ISO 12402:2006 personal flotation devices However, there is a chance that these water pressure activated inflation devices do not inflate the life jacket if a person is wearing waterproof clothing and falls into the water face-down. In these cases the buoyancy of the clothing holds a person on the water surface, which prevents the […]
Courtesy: ISO 12402:2006 personal flotation devices Life jackets for outfitting large commercial transport ventures in potentially dangerous waters, such as coastal cruises, offshore passages, and overwater air flights, consisting of either a single air chamber or a pair of (twin or double) sealed air chambers constructed of coated nylon (sometimes with a protective outer encasing […]
Courtesy: ISO 12402:2006 personal flotation devices Life jackets or life vests are mandatory on airplanes flying over water bodies, in which case they consist of a pair of air cells (bladders) that can be inflated by triggering the release of carbon dioxide gas from a canister—one for each cell. Or the cells can be inflated […]
Courtesy: ISO 12402:2006 personal flotation devices The rigid cork material eventually came to be supplanted by pouches containing watertight cells filled with kapok, a vegetable material. These soft cells were much more flexible and comfortable to wear compared with devices using hard cork pieces. Kapok buoyancy was used in many navies fighting in World War II. Foam eventually […]
Courtesy: ISO 12402:2006 personal flotation devices The oldest examples of primitive life jackets can be traced back to inflated bladders, animal skins, or hollow sealed gourds for support when crossing deep streams and rivers. Purpose-designed buoyant safety devices consisting of simple blocks of wood or cork were used by Norwegian seamen. In a letter to the Naval Chronicle, dated […]
Courtesy: ISO/TS 29001:2010 petroleum petrochemical and natural gas Documents required by the quality management system shall be controlled. Records are a special type ofdocument and shall be controlled according to the requirements given in A documented procedure shall be established to define the controls needed The ISO 9000 family of quality management systems (QMS) is a set of standards […]
Courtesy: ISO/TS 29001:2010 petroleum petrochemical and natural gas All requirements of this International Standard are generic and are intended to be applicable to allorganizations, regardless of type, size and product provided.Where any requirement(s) of this International Standard cannot be applied due to the nature of anorganization and its product, this can be considered for exclusion.Where […]