Safety System Standards

Ownership of technical specifications and standards for warranted discipline (including system safety standards)... 

A four-step hierarchy in the U.S. government s system safety standard requirements... 

Having considered how safety cases could be viewed in terms of the hypothesis and ehallenge approach used by science, this section looks briefly at its compatibility with three well-known system safety standards or regulatory requirements. Note that this is intended to illustrate how the hypothesis and challenge approach can fit (or not) existing standards and regulatory requirements it is not a eomplete analysis. 

In general today s established system safety standards tend to be focused on development activities, or maintenanee of particular products or specific items. Typical safety standards in widespread use such as lEC 61508 (lEC 2010), Def Stan 00-56 (MoD 2007a) and DO-178B (RTCA 1992) generally cover service only in terms of maintenance or evolution of a system originally developed to the standard. 

The final session picks up on another recurring theme safety standards. This year, we take a look at CE marking requirements, as well as reviewing significant updates to two important systems safety standards lEC 61508 and DO-178C. 

The company has extensive expertise in system safety (dating to 1988) and provides consulting services in all safety-critical sectors. They provide both training courses and webinars in system safety and are fully conversant with all system safety standards. They can develop specific training to meet client needs as well as provide standard training in all areas of system safety analysis. 

Schock, H. E., Jr. 1993. Regulation and system safety standards. Hazard Prevention (2nd Quarter) 29. 

Keywords Safety-related embedded system, safety standard, road traffic... 

When illegal residues have been found in monitoring studies conducted by the FDA or USD A, the reason has often been that no U.S. tolerance had been requested for that particular pesticide in that specific crop. For example, an imported crop would be deemed to be adulterated and would be seized at the port of entry into the United States if found to contain a pesticide residue in the absence of a tolerance in that crop. This is so even if tolerances have been set for the same pesticide in several crops grown in the United States and the pesticide had been used to control a pest that does not exist in the United States. Furthermore, an international maximum residue level (MRL) might already have been estabUshed for that pesticide—crop combination under the Codex system of standards for food of importance in international trade. The U.S. GAO issued two reports on food safety and pesticides in 1991 (89,90). 

NEMA/1CS7.1/1995 Safety standards for construction and guide for selection, installation and operation of adjustable speed drive systems ... 

Do not comply with the health and safety standards of your industry Do not comply with the relevant environmental regulations Do not have a system to assure the quality of supplies Are not committed to continuous improvement Are financially unstable... 

MG 2 Safety Standard for Construction and Guide for Selection, Installation, and Use of Electric Motors and Generators MG 10 Energy Guide for Selection and Use of Polyphase Motors VE 1 Cable Tray Systems... 

Since the resources for data collection systems will be provided by senior management it is essential that information from the system is fed back to policy makers at this level. It is also important that the system indicates the problem areas as well as the successes. Many organizations have drifted to a state where safety standards have fallen to below acceptable levels over time as a result of suppression of information feedback to senior managers. This may be carried out with good intentions, but its long-term effect can be disastrous. 

The long-term widespread use of DDT over a number of years demonstrates one typical Soviet trick - abusing loopholes in the rules. DDT was actively used for decades, while not being on lists of permitted substances, a situation condoned by the Health and Epidemiological Services and their on-site agencies. Pesticide use systematically was not in accordance with the permissible standards in the USSR. In 1976 the USSR introduced a System of Labor Safety Standards Harmful Substances, Classification and Overall Safety Requirements, according to which all harmful substances were broken down into four risk classes, taking into account several different indices (table 1.5). 

NASA, Safety Standard for Hydrogen and Hydrogen Systems, Report NSS 1740.16, Office of Safety and Mission Assurance, Washington, 1997, Chap. 2. 

U S. Department of Defense, MIL-STD-882-C, "Military Standard System Safety Program Requirements," Washington, DC, January 1993. 

The primary document outlining risk assessment methods in the U.S. Department of Defense is a Military Standard, Ref. 39. This document requires a well-documented system safety program, based on risk assessment methods to be included in all new Department of Defense systems and facilities. Hazards analyses of the systems are mandated by this publication. 

Russia (U.S.S.R.) GOST 12.1.010-76. Occupational Safety Standards System, Explosion Safety. General Requirements. State Standards Committee of the USSR, Moscow, U.S.S.R., 1984. 

MIL-STD-882D, Department of Defense Standard Practice for System Safety (DoD, 2000)... 

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