Inventory purpose

The EPA uniquely addresses TSCA Inventory listings for silica compounds. Silicon dioxide (Si02 commonly known as silica ) is commercially distributed in several physical forms. Because the chemical compositions of the various physical forms of silica are identical, the EPA does not distinguish them for TSCA Inventory purposes. The EPA does not consider differences in toxicity between these various physical forms as requiring separate TSCA Inventory status. Such distinctions are made at the state level particularly for silica forms with a crystalline component. 

A review of chemical databases reveals that different CASRN have been assigned to the different physical forms of Si02- The assignment of these CASRN was unrelated to TSCA. The EPA has taken the position that, for TSCA purposes, the different physical forms of Si02 are considered to be included under the TSCA Inventory listing for silica, CASRN 7631-86-9. For example, the EPA instructs the regulated community to treat silica, amorphous, fumed, crystalline-free (CASRN 112945-52-5), and silica gel, precipitated, crystalline-free CASRN (112926-00-8), as silica (CASRN 7631-86-9) for TSCA Inventory purposes. 

For TSCA Inventory purposes, the EPA distinguishes silica gel (CASRN 63231-67-4), and silica fumes, (CASRN 69012-64-2), as unique chemical substances. The EPA takes the position that manufacturers are free to describe these types of substances in promotional literature and in Material Safety Data Sheets (MSDS) in any way they wish. For example, the substance silica, crystalline, has no CASRN assigned to it and does not appear on the TSCA Inventory, but it has been listed by California under Proposition 65 as a carcinogen. The list of various forms of silica in Table 4.1 does not contain forms that are specifically described as being crystalline, but two of them (CASRN 112945-52-5 and 112926-00-8) clearly state that they are not crystalline (crystalline-free). Some suppliers may use these CAS numbers on their MSDS to assure California customers that their products are not subject to a Proposition-65 warning, even though the correct CASRN for TSCA purposes is 76310-86-9. 

Silica, amorphous, fumed, crystalline free 112945- 52-5 No Yes No For TSCA Inventory Purposes use 7631-86-9... 

Note that the Chemical Abstracts Services (CAS) Index Name, the name that would be used for TSCA Inventory purposes, for the first isomer (jasmolin I) is ... 

There is a Universal Product Code (UPC) on every product in every store. UPCs are used in a variety of ways. First of all. a UPC identifies not only the product but also what type of product it is and its manufacturer. Using the UPC. each store specifies a price that appears on the cash register when the product s bar code is scanned as you check out. Stores also use UPCs for inventory purposes. By using the UPC, the store can track products that sell quickly, or ones that rarely sell, and make sure that all products are always in stock. 

The EPA refers to a polymers description for Inventory purposes as its chemical identity In practice the chemical identity can be very different from the polymer s chemical composition, and so this term is confusing and misleading and will not be used here. 

The first condition for the polymer exemption is that the substance must meet the definition of a polymer stated in the exemption, which is not the same as a chemist s definition of a polymer. This regulatory definition is also not the same as the definition the EPA uses for Inventory purposes, andis just a small subset of that much broader definition. To keep all of the different... 

Fed. Reg. 2854 (Jan. 16, 2008) Proposed Clarification for Chemical Identification Describing Activated Phosphors for TSCA Inventory Purposes 73 FR 2854 Phosphors 1-16-08... 

Routine monitoring inside plants for inventory purposes. 

The Toxic Substances Control Act (TSCA) was enacted in 1976 to identify and control toxic chemical ha2ards to human health and the environment. One of the main provisions of TSCA was to estabUsh and maintain an inventory of all chemicals in commerce in the United States for the purpose of regulating any of the chemicals that might pose an unreasonable risk to human health or the environment. An initial inventory of chemicals was estabhshed by requiring companies to report to the United States Environmental Protection Agency (USEPA) all substances that were imported, manufactured, processed, distributed, or disposed of in the United States. Over 50,000 chemical substances were reported. PoUowing this initial inventory, introduction of all new chemical substances requires a Premanufacturing Notification (PMN) process. To be included in the PMN are the identity of the new chemical, the estimated first year and maximum production volume, manufacture and process information, a description of proposed use, potential release to the environment, possible human exposure to the new substance, and any health or environmental test data available at the time of submission. In the 10 years that TSCA has been in effect, the USEPA has received over 10,000 PMNs and up to 10% of the submissions each year are for dyes (382)... 

It is not my purpose here to elaborate on inventory management as this is a management function in its own right. From the quality management viewpoint, however, there are some factors that need to be considered. 

An inventory management system should be established - meaning set up on a permanent basis to meet defined inventory policies and objectives approved by executive management. It should be documented - meaning that there should be a description of the system, how it works, the assignment of responsibilities, the codification of best practice, procedures, and instructions. The system should be planned, organized, and controlled in order that it achieves its purpose. A person should therefore be appointed with responsibility for the inventory management system and the responsibilities of those who work the system should be defined and documented. Records should be created and maintained that show how order quantities have been calculated in order that the calculations can be verified and repeated if necessary with new data. The records should also provide adequate data for continual improvement initiatives to be effective. 

Filling out a self-assessment questionnaire such as the Myers-Briggs-Type Indicator. This personality inventory provides insights into a person s Jimgian type, which has been found to be a useful basis for purposes such as self-development, career development and career counselling. 

The discussion above lacks basic data the purpose of our inventory is mainly to raise issues that need to be addressed in the future, and to try to develop a framework that relates these issues to each other, than to supply this lacking data. Because of that, the question of whether aspects of isotopic variation discussed above can be unequivocally identified in the archaeological record in Europe cannot yet be answered. We can, however, state that some form of patterning (as opposed to random variation) can often be observed. In many cases we observe patterns without knowing the precise causes, conceivably because they are the result of more than one factor e g., a climatic and a cultural effect. 

Panels must be properly identified to know where they lit in the facility. Figure 26.20 depicts the panel-seam identification scheme used for this purpose. This numbering scheme also assures a high-quality installation, since seam numbers are used to inventory all samples cut from the FML panel during installation. The samples cut from the panels are tested to ensure that the installation is of high quality. Quality assurance and the panel-seam identification scheme are discussed in more detail in Chapter 7. 

ISO 14042 defines normalization as calculation of the magnitude of indicator results relative to reference information . The main aim of normalizing the category indicator results is to better understand the relative importance and magnitude of these results for each product system under study. For the purpose of normalization in LCA, Wegener Sleeswijk et al. [13] have made a comprehensive inventory of extractions and emissions of substances for the world level in the year 2000. The normalization in this project is based on these reference emissions and extractions. As a result the normalized score of an impact category for the cushion vinyl floor covering case is expressed as a fraction of the world problem. 

Before reading the section below, write down ten examples of where labels might be used in a laboratory and for what purpose. To help you, here is an example labels used on individual instruments, each showing a unique number, to distinguish one from another of the same kind, and to enable their identification on the laboratory equipment inventory. 

Short-term sales planning is sometimes supported by a demand fulfillment and available-to-promise (ATP) module. Its purpose is to match inventories and production orders with demands, if customers require reliable quotes with only short notice. 

---