Bibliographic record
Abstract
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. …
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.007 | 0.025 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.007 | 0.005 |
| Science and technology studies | 0.002 | 0.001 |
| Scholarly communication | 0.007 | 0.008 |
| Open science | 0.002 | 0.004 |
| Research integrity | 0.003 | 0.003 |
| Insufficient payload (model declined to judge) | 0.145 | 0.095 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".