Documentation changes

A JHA documents procedures that can be used to review job methods and uncover hazards that may exist in the workplace. JHAs can also be used to document changes in work tasks. Some solutions to potential hazards may be physical changes that eliminate or control the hazard or a modified job procedure that will help eliminate or minimize the hazard. 

The control which you exercise over external documents is somewhat limited. You cannot for instance control the revision of such documents therefore all the requirements concerning document changes will not apply. You can, however, control the use and amendment of external documents. You can control use by specifying which versions of external documents are to be used and you can remove invalid or obsolete external documents from use or identify them in a way that users know that they are invalid or obsolete. You can control the amendment of external documents by controlled distribution of amendment instructions sent to you by the issuing agency. 

Don t use concessions to change documents - change the document or use a change note. 

Failure investigation procedure Nonconforming material review procedure Customer complaints procedure Quality system document change procedure Specification change procedure Maintenance procedures... 

Provide a means for collecting design change and document change requests. 

Table 5.2 and Figure 5.14 not only document changes in solvent use but also in the demand for other selected substances. The changes are given relative to the amount used in the laboratory stage. Reference values are one kilogram of product (columns 3... 

These considerations require an expanded scope for a monitoring program, involving measurements of ancillary environmental conditions in addition to mercuiy data if the objective is not just to document changes in mercuiy concentrations, but also to gain insight into links between emissions and concentration trends in biota. These issues are addressed in each chapter. 

The objective of this study was to document changes in Cu-Zn tailings during one year of exposure to oxidizing conditions. The primary factor affecting the rate of tailings acidification is the primary mineralogy. 

There are a number of measurements documenting changes in NO and NO. in the stratosphere after the Mount Pinatubo eruption and which have been attributed to the removal of oxides of nitrogen due to reactions on aerosol particles. For example, a decrease in stratospheric NOz after the eruption followed by a return to normal levels has been reported (e.g., see Van Roozendael et al., 1997 and De Maziere et al., 1998). Similarly, NO decreases of up to 70% were reported, as well as increases in gaseous HN03 (much of that produced on the sulfate particles is released to the gas phase) (e.g., see Coffey and Mankin, 1993 Koike et al., 1993, 1994 David et al., 1994 Webster et al., 1994 and Rinsland et al., 1994). 

Critical systems (HVAC, compressed air and gas, water, steam) should be reviewed for documented changes. 

Experimental studies have documented changes in drug response caused by increases or decreases in the number of receptor sites or by alterations in the efficiency of coupling of receptors to distal effector mechanisms. In some cases, the change in receptor number is caused by other hormones for example, thyroid hormones increase both the number of 3 receptors in rat heart muscle and cardiac sensitivity to catecholamines. Similar changes probably contribute to the tachycardia of thyrotoxicosis in patients and may account for the usefulness of propranolol, a 3-adrenoceptor antagonist, in ameliorating symptoms of this disease. 

Document changes/modifications are reviewed and approved by the [design department], which has access to all pertinent background information upon which to base its review and approval. 

Product and document changes are reviewed to verify that there is no degradation of quality. Document changes are distributed at the proper time to the appropriate point in the system to ensure that work and functions are accomplished in accordance with requirements. 

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