Material certifications

Match batch size to container size of critical components, using an integral number of whole containers, where possible Double check materials being added to reactor Complete batch loading sheets for each batch run Use of operator sign-off sheets Preweigh reactants before transferring to reactor Verify raw materials (certificate of analysis for critical materials)... 

All aspects of the material s chemical, mechanical and physical properties which are included in the specification should be capable of measurement and certification. For critical duties all material supplied should be fully tested and certified by competent approved, independent test laboratories. All items of plant should be purchased with material certification. Additional certification is required in cases where the fabricator, in manufacturing an item of plant, used techniques such as welding or heat treatment which may affect the corrosion behavior of the construction materials. 

All bought-in items of plant, especially those supplied without adequate materials certification, should be subject to random inspection. Portable instruments are available for many types of non-destructive examination, chemical analysis and mechanical testing of fabricated items of plant. 

Lindstrom RM (1998) Reference material certification by prompt-gamma activation analysis. Fresenius J Anal Chem 360 322-324. 

Kane JS, Potts PJ (1997) ISO Guidelines for reference material certification and use, Geostds Newslett The Journal for Geostandards and Geoanalysis 21 51-58. 

As usually viewed by the reference material producers, a fundamental philosophy of certification rests on the concept of independent methodology, which is the application of theoretically and experimentally different measurement techniques and procedures to generate concordant results leading to one reliable assigned value for the property. Such assigned values are thus method-independent. Extractable concentrations are generated by specific procedures and are thus method-dependent, an idea that has to be rationalized with the fundamental method-independent concept in reference material certification work. 

Material certification study Study that assigns a reference value ( true value ) to a quantity (concentration or property) in the test mate-... 

A546 Material certificate for casing MAT CER CA c 1 1 lyes (true) Oi no (false)... 

If specified, the vendor shall furnish material certificates that include chemical analysis and mechanical properties for the heats from which the material is supplied for pressure-containing castings and forgings, impellers and shafts. Unless otherwise specified, piping nipples, auxiliary piping components, and bolting are excluded from this requirement. 

Material certifications—The vendor s physical and chemical data from mill reports (or certification) of pressure parts, impellers, and shafts. 

Tubing should be supplied with a material certification sheet for material construction and rugosity and be precleaned and capped. Handle material in such a way as to prevent introduction of contaminants into the piping system. 

For packaging materials certification, it is sufficient to review the results of three suppliers. 

Material certification To assign a consensus Used as part of a... 

Mass Assignment. It is performed using specific MS calibrants. Calibrants should be well-characterized reference materials. Certification and handling of these... 

The procedure would typically include an inspection checklist, calibration procedure, test equipment stipulations, and documentation requirements (e.g., inspection certificates, calibration certificates, hazardous area certification, EMC/RFI certification, material certificates). 

Project Quality Plan Software Quality Assurance Program Functional Design Specification Hardware Design Specification Software Design Specification Software Module Design Specification Software Review Software Module Test Records Hardware Test Records Integration Test Records Instrument Spccs/Data Sheets Instrument Calibration Records Material Certificates... 

To be able to EC mark a product, the manufacturer must undergo, for each product and type of valve, a conformity assessment comprising the EC type or design examination and the assurance of the production quality system. The manufacturer must also demonstrate the quality compliances of all sub-suppliers and ensure that all critical parts (or at least pressure-retaining parts) are fully traceable and accompanied by a material certificate. Procedures to certify conformity to PED are carried out by a notified body approved by the member states of the European Community. With completion of the assessment, the manufacturer may stamp the EC mark on the product. 

About the materials, PED defines the pressure-retaining parts for the valves in the technical file of each valve type. Typically, for an SRV, this would be body, bonnet, disc and nozzle but could be different depending on the type of SRV. These parts must satisfy material requirements and have an EN10204 3.IB (now 3.1) material certificate, and are therefore traceable. 

While most manufacturers provide a 3.1 (EN 10204) material certificate for traceability per PED on the body, bonnet, nozzle and disc only as being the pressure retaining parts, one could argue that this should be extended to all parts which truly contain the pressure, including bolts, studs and nuts. The code is not explicit on the matter and it is up to the user to evaluate the issue. 

Type of study A = analytical study, C = collaborative trial, M = monitoring study, P = study on the effect of food processing/preparation, R = Reference material certification, O = other studies, including investigations on element uptake/distribution/biotransformation and biological activity. 

The cost and complexity of validation is often underestimated and can cause delays in bringing the product to market. Validation requirements for a project should be identified as early as possible in the project life cycle to ensure that adequate time and cost is allowed to complete them successfully. It is particularly important to establish the documentation required from suppliers and contractors working on the project, and the extent to which they will be required to play a part in the validation process. For example, if material certification is required for equipment components, these must be ordered from the supplier s own stockholders with the raw materials, and cannot be obtained retrospectively. 

Material certification study Method performance study Proficieucy test Z Score... 

Koeber, R., Linsinger, T.P.J., Emons, H. An approach for more precise statements of metrological traceability on reference material certificates. Accred. Qual. Assur. 15,255-262 (2010)... 

Material certificates are normally only required where the materials of construction were specified on the instrument specification/data sheets to comply with process or environmental requirements (e.g., valve bodies and trims). 

Materials certificates or other method of material verification... 

Flandling and approval of contractor s drawings, purchase orders, subcontracts, and materials certification. 

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