Equipment Safety: UL Ratings and More
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Notice bibliographique
Résumé
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. …
Récupéré en direct depuis OpenAlex et désinversé. Les résumés ne sont pas conservés dans cette base de données : les index inversés représentent 8,6 Go des 9,3 Go de texte de la base, et le serveur dispose de 13 Go libres.
Prédiction distillée sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Apprise à partir de 10 348 étiquettes directes de Codex et de 10 348 étiquettes directes de Gemma. Le mode candidate est l'union des têtes enseignantes seuillées; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont ni des étiquettes humaines ni des étiquettes directes de modèles de pointe.
Scores Codex et Gemma par catégorie
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,001 | 0,000 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,000 | 0,000 |
| Bibliométrie | 0,000 | 0,000 |
| Études des sciences et des technologies | 0,000 | 0,000 |
| Communication savante | 0,000 | 0,000 |
| Science ouverte | 0,000 | 0,000 |
| Intégrité de la recherche | 0,000 | 0,000 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,000 | 0,000 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découle