Certified reference material definition

Certified reference material means a reference material prepared by a certifying body or a party independent of the laboratory with ISO/IEC 17034 accreditation.

Certified reference material means a reference material prepared by a certifying body.

Certified reference material means a reference material one or more of whose property values are certified by a technically valid procedure, accompanied by or traceable to a certificate or other documentation that is issued by a certifying body.

Examples of Certified reference material in a sentence

• The agreement should develop processes and mechanisms to achieve regulatory coherence, including early consultations, impact assessments and regulatory reviews.

• Certified reference material (“CRM”) and blanks were inserted with samples prior to analysis.

• Certified reference material (milk-based infant/adult nutri-tional formula powder, SRM 1849a, NIST®) was purchased from LGC Standards (Molsheim, France).

• Certified reference material BCR-610 (ground water) was obtained from The Institute for Reference Materials and Measurements of Joint Research Centre (Geel, Belgium), LGC6016 ( estuarine water) from LGC-Standards (Teddington, UK).

• If an analyst uses a previously authenticated reference material, the analyst will initial the authentication data cover sheet indicating that he/she has looked at the authentication paperwork.4.2 Qualitative Reference Material Authentication4.2.1 Certified reference material may be obtained from ISO Guide 34 or 17034 approved providers that are included on the supply service list.

• Certified reference material also used to check lasersizer.• Laser obscuration is monitored for each sample.• Balances calibrated annually.• Sample weighed before, during, and after - if doesn’t match up: re-sieve.• Samples are re-sieved if deemed necessary (see above).

• Certified reference material (CRM) assayed values were also verified from the original certificates and used to measure the accuracy of the batches of samples submitted from the drill core.

• Certified reference material (blanks and standards) were submitted into the sample stream at a rate of 1 in 20 to 25 samples (1 in 50 prior to 2008).

• The main points raised include:• Laboratory method is UKAS accredited to IOS17025.• Certified reference material (although not a great representation of marine sediment) used in lasersizer, Mastersizer serviced annually, and three samples run through the lasersizer.• Sieves are certified, balances calibrated annually and checked daily.

• Certified reference material SRM 1486 Bone Meal was purchased from the National Institute of Standards and Technology (NIST - Gaithersburg, MD, USA).

More Definitions of Certified reference material

Certified reference material. (CRM) means a reference material, accompanied by documentation issued by a delegated body and providing one or more specified property values with associated uncertainties and traceabilities, using valid procedures (16);

Certified reference material means reference material as referred to in Articles 5(3)(j) and 17(3)(j) of Regulation (EC) No 1829/2003 and corresponds to any material or substance, one or more of whose property values are certified for calibration or quality control of methods. It is accompanied by a certificate that provides value of the specified property, its associated uncertainty and a statement of metrological traceability;

Certified reference material means reference material, accompanied by a certificate, one or more of whose property values are certified by a procedure which establishes traceability to an accurate realisation of the unit in which the property values are expressed, and for which each certified value is accompanied by an uncertainty at a stated level of confidence;

Certified reference material means reference material, accompanied by a certificate, having a value, measurement of uncertainty and stated metrological traceability chain to a national metrology institute.

Certified reference material. (CRM) means a reference material in cannabis or similar non-cannabis matrix prepared at a known concentration by a certifying body or a party independent of the laboratory with ISO/IEC 17034 accreditation. The laboratory will calculate the percent recovery of the certified reference material based on measured concentration relative to the known concentration.