Material inventory system

Fig. 1 Sample output from a material inventory system.

SPC on manufactured products SQC on laboratory operations communicate with corporate CIM system improved QA/QC on products reduced testing costs correlate laboratory analyses and process measurements faster solutions to production problems tested in laboratory faster notification of backlog problems improved electronic data interchange capabiUties automated communication with inventory, ordering, and materials planning systems... 

The Failure and Inventory Reporting System (FIRS) program was developed by the Geological Survey Division of the U.S. Department of the Interior for safety and pollution prevention devices on offshore structures that produce or process hydrocarbons. The program collected data on mechanical and some electromechanical systems on offshore oil platforms. About 8,000 failure events were documented. Access has been limited to internal materials management system use. No real-time access or periodic output products have been available. 

Just-in-time inventory systems will reduce the quantities of stored hazardous materials. 

Raw materials must always be approved by the Quality Unit before use by production. Each lot of raw material should be sampled and the laboratory should perform at least an identity test in addition to verifying from the supplier Certificate of Analysis (COA) that the lot test results conform to the excipient manufacturer s specification. Upon approval, the status of the lot is changed from unapproved or quarantine to approved or available. The raw material lot status can be identified by use of approval labels on the container or pallet, movement of the raw material lot to the approved section of the warehouse, or by changing the lot status in a computerized inventory system. 

Because of the batchwise nature of electronic materials processing and the long process sequences, a supervisory system is essential. This system collects information on the state of the system gives status of work in progress schedules work based on process priorities, product requirement, equipment readiness, and materials availability and controls product and raw material inventories. Materials handling concerns the physical movement of wafers through the fabrication line via various mechanical means [32] and is therefore primarily a mechanical engineering problem. The control of the individual unit operations and the incorporation of local control functions in... 

The inventory system needed is FIFO, which is desirable when inventories are subject to obsolescence or deterioration or when they consist of raw materials that fluctuate widely in value. The capital investment for a typical aisle-rack storage system having a 5000-pallet capacity (1 deep) is 65 per stored pallet (this does not include lift-truck investment). 

Depending on the requirements of the operation, this system may also include breakdown or aggregation of inventory received into smaller or larger stock keeping units (SKUs) for onward distribution. It may also include interfaces to purchase order systems, labeling applications, automated materials handling systems such as sortation systems, stock location systems, automated storage and retrieval systems. Radio Data Terminals (RDTs), Radio Frequency Identihcation units... 

NRC/U.S. Coast Guard coordinate numerous information services, systems, and centers to assist in emergency response. Included are the Marine Safety Information Center, Hazard Assessment Control System, Chemical Hazard Response Information System, Oil and Hazardous Materials-Technical Assistance Data System, Structural and Nomenclature Search System, and Pollution Equipment Inventory System. 

Processes with integrating action most commonly encountered in a chemical process are tanks with liquids, vessels with gases, inventory systems for raw materials or products, and so on. 

Most companies using a hazardous materials identification system have found that the best way to affix HMIS labels is to assign a person in the receiving department the responsibility for inventorying and affixing the HMIS labels. This can be accomplished in two ways, as described in c and d. 

Chemical inventory and tracking systems provide current information on the site s hazardous chemical and material inventories. A properly integrated inventory and tracking system can support other environment, safety, and health requirements (directives). This is a continuous process performed from acquisition, through storage and use, to final disposal. 

Sites comply with Department of Transportation (DOT) requirements (49 CFR 172.329), as do the suppliers of the chemicals. In addition, transportation requirements are found in OSHA regulations (29 CFR 1910.120 (q), 1910.1200, 1910.176, 1910.178). However, it is good practice to have specific procedures for the internal transportation of materials, which avoid or minimize the potential for spills. These procedures should be properly documented. Transportation also is often tracked in the site chemical inventory systems. 

A make-to-demand manufacturer makes fixed products with fixed processes but sets up and initiates those processes only when there are sufficient orders (i.e., known demand) in the system. This scenario may occur when there is a large catalog of fixed products with variable demand or when the catalog offers a few products with several options. The distinguishing factor is that orders are batched and the facility is set up for a run of a specific product or option suite. The planning problem for make-to-demand involves complex trade-offs among customer satisfaction, product volumes, materials inventories, and facility setup times. 

The implementation of CMMS and EAM will include an inventory system that totally supports the requirements of maintenance and the storeroom. Maintenance inventory wfll be managed to ensure that the right part is available at the right time without excessive inventory levels. Information from aU available sources will be used to determine optimum stock levels. A continuous review of stock levels will be made to eliminate excess inventory and obsolete parts. Inventory reductions will be achieved through more partnerships with suppliers and vendors that establish joint commitments to purchase based on responsive service and fast delivery. Positions within MRO material management and procurement wfll increase in their importance and level of technical knowledge to perform effectively... 

Let the outstanding orders correspond to the jobs in the queueing system. In the inventory system, each of these orders will materialize (or arrive —become available to supply demand) after a lead time. This corresponds to a queueing system with an infinite number of servers, so that any job will be served immediately on arrival. Hence, the overall cycle time of each job in the system is simply its service time, which corresponds to the lead time of orders in the inventory system. 

The exchange or transfer of chemicals between laboratories at an institution depends on the kind of inventory system and central stockroom facilities in place. Some institutions encourage laboratory workers to return materials to the central stockroom for redistribution to other workers. The containers may be sealed or open a portion of the material may have been used. Materials from containers that have been opened are often of suffi... 

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