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Record W198033135

Equipment Safety: UL Ratings and More

2011· article· en· W198033135 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

aboutThe title or abstract carries a Canadian signal from the geographic lexicon.
no affNo Canadian affiliation: this work is invisible to an affiliation-only frame.
No Canadian affiliation. An affiliation-only frame, the usual design, would never have seen this work. It is one of the works that make the case for inverting the frame.

Bibliographic record

VenueThe Science Teacher · 2011
Typearticle
Languageen
FieldChemical Engineering
TopicChemical Safety and Risk Management
Canadian institutionsnot available
Fundersnot available
KeywordsCertificationScope (computer science)Product (mathematics)SAFERBusinessVariety (cybernetics)Product testingProduct certificationSafety standardsEngineeringOperations managementComputer securityComputer scienceLawReliability engineeringPolitical scienceMathematics
DOInot available

Abstract

fetched live from OpenAlex

Smart consumers look to buy appliances such as refrigerators, dishwashers, and washing machines with the familiar UL, or Underwriters Laboratories, label. Why? The UL label signifies that the appliance has been safety-tested in accordance with a specific set of standards. This ensures safer operation and built-in protection for the user. Science teachers might find themselves asking whether the same is true for science laboratory equipment--are there similar agencies that review, test, and certify this kind of equipment? The answer is yes! There are a number of Nationally Recognized Testing Laboratories (NRTLs) that certify a wide variety of products for equipment manufacturers. These requirements help ensure that products are designed for safe use in the workplace. The Occupational Safety and Health Administration (OSHA) safety standards for general industry (29 CFR 1910) require NRTL approval of certain products used in the workplace. High school labs are likely to include hot plates, power supplies, electronic balances, computers, ovens, and generators--all of which require certification by NRTLs. What exactly does NRTL certification mean? OSHA acknowledges that certain organizations have the necessary qualifications to do safety testing and certify products covered within its scope of recognition. According to OSHA, properly means the following: 1. The product is labeled or marked with the registered certification mark of an NRTL. 2. An NRTL has issued certification for the product, which is covered within the scope of an OSHA product-safety test standard. 3. An NRTL has issued the certification from one of its OSHA-recognized sites (i.e., locations). OSHA recognition in no way means the equipment has been OSHA-approved--it means that the equipment has been certified and meets certain safety-test expectations. The actual list of specific test standards can be found on the OSHA website (see On the web). Also be aware that once an NRTL certifies a product, it monitors the product, manufacturer, marketplace, and use of its certification mark. How do I know equipment is NRTL-certified? NRTLs have unique certification marks for compliance that are registered with the U.S. Patent and Trademark Office. The equipment manufacturer places the registered certification mark on products the NRTL has certified. OSHA's Typical Registered Certification Marks website provides more information (see On the web). This site contains many examples of registered certification marks and NRTLs. The following organizations are currently OSHA-recognized NRTLs: * Canadian Standards Association (CSA) (also known as CSA International) * Communication Certification Laboratory (CCL) * Curtis-Straus LLC (CSL) * FM Approvals LLC (FM) (formerly Factory Mutual Research Corporation) * Intertek Testing Services NA (ITSNA) (formerly ETL) * MET Laboratories (MET) (formerly Maryland Electrical Testing) * NSF International (NSF) (formerly National Sanitation Foundation) * National Technical Systems (NTS) * SGS U. …

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.153
Threshold uncertainty score0.543

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.025
GPT teacher head0.244
Teacher spread0.219 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it