Question: What Are Reference Materials Used For?

What is primary reference standard?

Primary reference standards.

A reference standard for a unit of measurement is an artifact that embodies the quantity of interest in a way that ties its value to the reference base.

At the highest level, a primary reference standard is assigned a value by direct comparison with the reference base..

Who should I use as professional references?

A professional reference for an experienced worker is typically a former employer, a colleague, a client, a vendor, a supervisor, or someone else who can recommend you for employment. Recent college graduates might also tap professors, coaches, and college personnel who were advisers for your activities.

What is the difference between reference material and certified reference material?

Reference Materials that do not meet all the criteria for certified reference materials are more widely available: the principal difference is the additional evidence of metrological traceability and statement of measurement uncertainty provided on the certificate for certified reference materials.

Why can a source be categorized as reference material?

Reference sources provide answers to specific questions, such as brief facts, statistics, and technical instructions; provide background information; or direct you to additional information sources. Reference sources are not scholarly (peer-reviewed).

How do you give a good reference to a friend?

How to write a reference letter for a friendAccept if you can provide a quality reference. … Request details about the job opening. … Ask your friend about goals and objectives. … Discuss the background of your relationship. … Mention examples of skills and qualifications. … Focus on improvement and progress.More items…•

What are design reference materials?

Reference design refers to a technical blueprint of a system that is intended for others to copy. It contains the essential elements of the system; however, third parties may enhance or modify the design as required. When discussing computer designs, the concept is generally known as a reference platform.

What is reference substance?

The term chemical reference substance, as used in this text, refers to an authenticated, homogenous material that is intended for use in specified physical and chemical tests, in which one or more of its properties are compared with those of the product under examination and which possesses a degree of purity adequate …

How do you qualify a reference standard?

The reference standard should be of the highest purity possible; the drug substance may require further purification to become a reference standard (additional purification steps used for a drug substance should be fully described and included in any regulatory filing).

What is the meaning of reference?

Reference means someone or something which is a source of information about a subject. An example of reference is an encyclopedia.

How does NIST certify a reference material?

NIST Standard Reference Material® (SRM) – A CRM issued by NIST that also meets additional NIST-specific certification criteria and is issued with a certificate or certificate of analysis that reports the results of its characterizations and provides information regarding the appropriate use(s) of the material (NIST SP …

Can a personal reference be a family member?

Personal references are commonly provided by teachers, lecturers, group or club leaders, neighbours, friends and family members. … While friends and family are acceptable referees, it is better for you to select someone who is not immediate family as their opinion may be construed as being biased.

Can a character reference be a friend?

A good character reference could be from someone like a teacher or mentor. … “Close friends and family are best avoided as their reference may be biased and recruiters will be looking for something objective and impartial.

What are examples of reference materials?

While there are many different types of resources, here are a few: almanacs, atlases, bibliographies, biographical resources, dictionaries, encyclopedias (both general and by subject), handbooks, indexes, statistics, and citation guides.

What are the five major types of reference sources?

Types of Reference Sourcesbibliographies (lists of sources on specific topics)biographical sources (information on the lives of individuals)chronologies (dates and timelines for events)directories (address and phone number information)

Who should you use as references?

The 8 Best People to Choose as Job ReferencesRecent bosses. Current or previous employers speak best about your work ethic. … Co-workers. … Professors. … Friends… but only if they’re a professional reference. … Group members. … Any place you’ve volunteered. … The person you babysat for or whose lawn you mowed every summer. … High school teacher or coach you still talk to regularly.More items…•

What is character reference examples?

Here are a few examples of people who make great character references:Coworker.Co-volunteer or volunteer leader.Coach.Client or customer.Vendor or business acquaintance.Professor or academic advisor.Personal or professional mentor.Fellow student or graduate from an educational program.More items…•

What are the three types of references?

What types of references are important?Employment references include past employers, co-workers, subordinates, or clients. … Professional references are people who know you on a professional basis. … Academic references are instructors and vocational counselors.More items…

What are the general references?

General reference works—including encyclopedias, dictionaries, atlases, biographical works, and almanacs—are helpful tools for verifying facts and getting an overview. They are also useful for pinpointing keywords for searches on your topic.