langchain/docs/modules/indexes/document_loaders/examples/web_base.ipynb

{
 "cells": [
  {
   "cell_type": "markdown",
   "id": "bf920da0",
   "metadata": {},
   "source": [
    "# WebBaseLoader\n",
    "\n",
    "This covers how to use `WebBaseLoader` to load all text from `HTML` webpages into a document format that we can use downstream. For more custom logic for loading webpages look at some child class examples such as `IMSDbLoader`, `AZLyricsLoader`, and `CollegeConfidentialLoader`"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "id": "00b6de21",
   "metadata": {},
   "outputs": [],
   "source": [
    "from langchain.document_loaders import WebBaseLoader"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "id": "0231df35",
   "metadata": {},
   "outputs": [],
   "source": [
    "loader = WebBaseLoader(\"https://www.espn.com/\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "id": "f06bdc4e",
   "metadata": {},
   "outputs": [],
   "source": [
    "data = loader.load()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "id": "a390d79f",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "[Document(page_content=\"\\n\\n\\n\\n\\n\\n\\n\\n\\nESPN - Serving Sports Fans. Anytime. Anywhere.\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n        Skip to main content\\n    \\n\\n        Skip to navigation\\n    \\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n<\\n\\n>\\n\\n\\n\\n\\n\\n\\n\\n\\n\\nMenuESPN\\n\\n\\nSearch\\n\\n\\n\\nscores\\n\\n\\n\\nNFLNBANCAAMNCAAWNHLSoccer…MLBNCAAFGolfTennisSports BettingBoxingCFLNCAACricketF1HorseLLWSMMANASCARNBA G LeagueOlympic SportsRacingRN BBRN FBRugbyWNBAWorld Baseball ClassicWWEX GamesXFLMore ESPNFantasyListenWatchESPN+\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n  \\n\\nSUBSCRIBE NOW\\n\\n\\n\\n\\n\\nNHL: Select Games\\n\\n\\n\\n\\n\\n\\n\\nXFL\\n\\n\\n\\n\\n\\n\\n\\nMLB: Select Games\\n\\n\\n\\n\\n\\n\\n\\nNCAA Baseball\\n\\n\\n\\n\\n\\n\\n\\nNCAA Softball\\n\\n\\n\\n\\n\\n\\n\\nCricket: Select Matches\\n\\n\\n\\n\\n\\n\\n\\nMel Kiper's NFL Mock Draft 3.0\\n\\n\\nQuick Links\\n\\n\\n\\n\\nMen's Tournament Challenge\\n\\n\\n\\n\\n\\n\\n\\nWomen's Tournament Challenge\\n\\n\\n\\n\\n\\n\\n\\nNFL Draft Order\\n\\n\\n\\n\\n\\n\\n\\nHow To Watch NHL Games\\n\\n\\n\\n\\n\\n\\n\\nFantasy Baseball: Sign Up\\n\\n\\n\\n\\n\\n\\n\\nHow To Watch PGA TOUR\\n\\n\\n\\n\\n\\n\\nFavorites\\n\\n\\n\\n\\n\\n\\n      Manage Favorites\\n      \\n\\n\\n\\nCustomize ESPNSign UpLog InESPN Sites\\n\\n\\n\\n\\nESPN Deportes\\n\\n\\n\\n\\n\\n\\n\\nAndscape\\n\\n\\n\\n\\n\\n\\n\\nespnW\\n\\n\\n\\n\\n\\n\\n\\nESPNFC\\n\\n\\n\\n\\n\\n\\n\\nX Games\\n\\n\\n\\n\\n\\n\\n\\nSEC Network\\n\\n\\nESPN Apps\\n\\n\\n\\n\\nESPN\\n\\n\\n\\n\\n\\n\\n\\nESPN Fantasy\\n\\n\\nFollow ESPN\\n\\n\\n\\n\\nFacebook\\n\\n\\n\\n\\n\\n\\n\\nTwitter\\n\\n\\n\\n\\n\\n\\n\\nInstagram\\n\\n\\n\\n\\n\\n\\n\\nSnapchat\\n\\n\\n\\n\\n\\n\\n\\nYouTube\\n\\n\\n\\n\\n\\n\\n\\nThe ESPN Daily Podcast\\n\\n\\nAre you ready for Opening Day? Here's your guide to MLB's offseason chaosWait, Jacob deGrom is on the Rangers now? Xander Bogaerts and Trea Turner signed where? And what about Carlos Correa? Yeah, you're going to need to read up before Opening Day.12hESPNIllustration by ESPNEverything you missed in the MLB offseason3h2:33World Series odds, win totals, props for every teamPlay fantasy baseball for free!TOP HEADLINESQB Jackson has requested trade from RavensSources: Texas hiring Terry as full-time coachJets GM: No rush on Rodgers; Lamar not optionLove to leave North Carolina, enter transfer portalBelichick to angsty Pats fans: See last 25 yearsEmbiid out, Harden due back vs. Jokic, NuggetsLynch: Purdy 'earned the right' to start for NinersMan Utd, Wrexham plan July friendly in San DiegoOn paper, Padres overtake DodgersLAMAR WANTS OUT OF BALTIMOREMarcus Spears identifies the two teams that need Lamar Jackson the most8h2:00Would Lamar sit out? Will Ravens draft a QB? Jackson trade request insightsLamar Jackson has asked Baltimore to trade him, but Ravens coach John Harbaugh hopes the QB will be back.3hJamison HensleyBallard, Colts will consider trading for QB JacksonJackson to Indy? Washington? Barnwell ranks the QB's trade fitsSNYDER'S TUMULTUOUS 24-YEAR RUNHow Washington’s NFL franchise sank on and off the field under owner Dan SnyderSnyder purchased one of the NFL's marquee franchises in 1999. Twenty-four years later, and with the team up for sale, he leaves a legacy of on-field futility and off-field scandal.13hJohn KeimESPNIOWA STAR STEPS UP AGAINJ-Will: Caitlin Clark is the biggest brand in college sports right now8h0:47'The better the opponent, the better she plays': Clark draws comparisons to TaurasiCaitlin Clark's performance on Sunday had longtime observers going back decades to find comparisons.16hKevin PeltonWOMEN'S ELITE EIGHT SCOREBOARDMONDAY'S GAMESCheck your bracket!NBA DRAFTHow top prospects fared on the road to the Fina
      ]
     },
     "execution_count": 4,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "data"
   ]
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  {
   "cell_type": "code",
   "execution_count": 11,
   "id": "878179f7",
   "metadata": {},
   "outputs": [],
   "source": [
    "\"\"\"\n",
    "# Use this piece of code for testing new custom BeautifulSoup parsers\n",
    "\n",
    "import requests\n",
    "from bs4 import BeautifulSoup\n",
    "\n",
    "html_doc = requests.get(\"{INSERT_NEW_URL_HERE}\")\n",
    "soup = BeautifulSoup(html_doc.text, 'html.parser')\n",
    "\n",
    "# Beautiful soup logic to be exported to langchain.document_loaders.webpage.py\n",
    "# Example: transcript = soup.select_one(\"td[class='scrtext']\").text\n",
    "# BS4 documentation can be found here: https://www.crummy.com/software/BeautifulSoup/bs4/doc/\n",
    "\n",
    "\"\"\";"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "150988e6",
   "metadata": {},
   "source": [
    "## Loading multiple webpages\n",
    "\n",
    "You can also load multiple webpages at once by passing in a list of urls to the loader. This will return a list of documents in the same order as the urls passed in."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "id": "e25bbd3b",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "[Document(page_content=\"\\n\\n\\n\\n\\n\\n\\n\\n\\nESPN - Serving Sports Fans. Anytime. Anywhere.\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n        Skip to main content\\n    \\n\\n        Skip to navigation\\n    \\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n<\\n\\n>\\n\\n\\n\\n\\n\\n\\n\\n\\n\\nMenuESPN\\n\\n\\nSearch\\n\\n\\n\\nscores\\n\\n\\n\\nNFLNBANCAAMNCAAWNHLSoccer…MLBNCAAFGolfTennisSports BettingBoxingCFLNCAACricketF1HorseLLWSMMANASCARNBA G LeagueOlympic SportsRacingRN BBRN FBRugbyWNBAWorld Baseball ClassicWWEX GamesXFLMore ESPNFantasyListenWatchESPN+\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n  \\n\\nSUBSCRIBE NOW\\n\\n\\n\\n\\n\\nNHL: Select Games\\n\\n\\n\\n\\n\\n\\n\\nXFL\\n\\n\\n\\n\\n\\n\\n\\nMLB: Select Games\\n\\n\\n\\n\\n\\n\\n\\nNCAA Baseball\\n\\n\\n\\n\\n\\n\\n\\nNCAA Softball\\n\\n\\n\\n\\n\\n\\n\\nCricket: Select Matches\\n\\n\\n\\n\\n\\n\\n\\nMel Kiper's NFL Mock Draft 3.0\\n\\n\\nQuick Links\\n\\n\\n\\n\\nMen's Tournament Challenge\\n\\n\\n\\n\\n\\n\\n\\nWomen's Tournament Challenge\\n\\n\\n\\n\\n\\n\\n\\nNFL Draft Order\\n\\n\\n\\n\\n\\n\\n\\nHow To Watch NHL Games\\n\\n\\n\\n\\n\\n\\n\\nFantasy Baseball: Sign Up\\n\\n\\n\\n\\n\\n\\n\\nHow To Watch PGA TOUR\\n\\n\\n\\n\\n\\n\\nFavorites\\n\\n\\n\\n\\n\\n\\n      Manage Favorites\\n      \\n\\n\\n\\nCustomize ESPNSign UpLog InESPN Sites\\n\\n\\n\\n\\nESPN Deportes\\n\\n\\n\\n\\n\\n\\n\\nAndscape\\n\\n\\n\\n\\n\\n\\n\\nespnW\\n\\n\\n\\n\\n\\n\\n\\nESPNFC\\n\\n\\n\\n\\n\\n\\n\\nX Games\\n\\n\\n\\n\\n\\n\\n\\nSEC Network\\n\\n\\nESPN Apps\\n\\n\\n\\n\\nESPN\\n\\n\\n\\n\\n\\n\\n\\nESPN Fantasy\\n\\n\\nFollow ESPN\\n\\n\\n\\n\\nFacebook\\n\\n\\n\\n\\n\\n\\n\\nTwitter\\n\\n\\n\\n\\n\\n\\n\\nInstagram\\n\\n\\n\\n\\n\\n\\n\\nSnapchat\\n\\n\\n\\n\\n\\n\\n\\nYouTube\\n\\n\\n\\n\\n\\n\\n\\nThe ESPN Daily Podcast\\n\\n\\nAre you ready for Opening Day? Here's your guide to MLB's offseason chaosWait, Jacob deGrom is on the Rangers now? Xander Bogaerts and Trea Turner signed where? And what about Carlos Correa? Yeah, you're going to need to read up before Opening Day.12hESPNIllustration by ESPNEverything you missed in the MLB offseason3h2:33World Series odds, win totals, props for every teamPlay fantasy baseball for free!TOP HEADLINESQB Jackson has requested trade from RavensSources: Texas hiring Terry as full-time coachJets GM: No rush on Rodgers; Lamar not optionLove to leave North Carolina, enter transfer portalBelichick to angsty Pats fans: See last 25 yearsEmbiid out, Harden due back vs. Jokic, NuggetsLynch: Purdy 'earned the right' to start for NinersMan Utd, Wrexham plan July friendly in San DiegoOn paper, Padres overtake DodgersLAMAR WANTS OUT OF BALTIMOREMarcus Spears identifies the two teams that need Lamar Jackson the most7h2:00Would Lamar sit out? Will Ravens draft a QB? Jackson trade request insightsLamar Jackson has asked Baltimore to trade him, but Ravens coach John Harbaugh hopes the QB will be back.3hJamison HensleyBallard, Colts will consider trading for QB JacksonJackson to Indy? Washington? Barnwell ranks the QB's trade fitsSNYDER'S TUMULTUOUS 24-YEAR RUNHow Washington’s NFL franchise sank on and off the field under owner Dan SnyderSnyder purchased one of the NFL's marquee franchises in 1999. Twenty-four years later, and with the team up for sale, he leaves a legacy of on-field futility and off-field scandal.13hJohn KeimESPNIOWA STAR STEPS UP AGAINJ-Will: Caitlin Clark is the biggest brand in college sports right now8h0:47'The better the opponent, the better she plays': Clark draws comparisons to TaurasiCaitlin Clark's performance on Sunday had longtime observers going back decades to find comparisons.16hKevin PeltonWOMEN'S ELITE EIGHT SCOREBOARDMONDAY'S GAMESCheck your bracket!NBA DRAFTHow top prospects fared on the road to the Fina
       " Document(page_content='GoogleSearch Images Maps Play YouTube News Gmail Drive More »Web History | Settings | Sign in\\xa0Advanced searchAdvertisingBusiness SolutionsAbout Google© 2023 - Privacy - Terms   ', lookup_str='', metadata={'source': 'https://google.com'}, lookup_index=0)]"
      ]
     },
     "execution_count": 4,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "loader = WebBaseLoader([\"https://www.espn.com/\", \"https://google.com\"])\n",
    "docs = loader.load()\n",
    "docs"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "641be294",
   "metadata": {},
   "source": [
    "### Load multiple urls concurrently\n",
    "\n",
    "You can speed up the scraping process by scraping and parsing multiple urls concurrently.\n",
    "\n",
    "There are reasonable limits to concurrent requests, defaulting to 2 per second.  If you aren't concerned about being a good citizen, or you control the server you are scraping and don't care about load, you can change the `requests_per_second` parameter to increase the max concurrent requests.  Note, while this will speed up the scraping process, but may cause the server to block you.  Be careful!"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 9,
   "id": "9f9cf30f",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Requirement already satisfied: nest_asyncio in /Users/harrisonchase/.pyenv/versions/3.9.1/envs/langchain/lib/python3.9/site-packages (1.5.6)\n"
     ]
    }
   ],
   "source": [
    "!pip install nest_asyncio\n",
    "\n",
    "# fixes a bug with asyncio and jupyter\n",
    "import nest_asyncio\n",
    "\n",
    "nest_asyncio.apply()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 10,
   "id": "49586eac",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "[Document(page_content=\"\\n\\n\\n\\n\\n\\n\\n\\n\\nESPN - Serving Sports Fans. Anytime. Anywhere.\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n        Skip to main content\\n    \\n\\n        Skip to navigation\\n    \\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n<\\n\\n>\\n\\n\\n\\n\\n\\n\\n\\n\\n\\nMenuESPN\\n\\n\\nSearch\\n\\n\\n\\nscores\\n\\n\\n\\nNFLNBANCAAMNCAAWNHLSoccer…MLBNCAAFGolfTennisSports BettingBoxingCFLNCAACricketF1HorseLLWSMMANASCARNBA G LeagueOlympic SportsRacingRN BBRN FBRugbyWNBAWorld Baseball ClassicWWEX GamesXFLMore ESPNFantasyListenWatchESPN+\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n  \\n\\nSUBSCRIBE NOW\\n\\n\\n\\n\\n\\nNHL: Select Games\\n\\n\\n\\n\\n\\n\\n\\nXFL\\n\\n\\n\\n\\n\\n\\n\\nMLB: Select Games\\n\\n\\n\\n\\n\\n\\n\\nNCAA Baseball\\n\\n\\n\\n\\n\\n\\n\\nNCAA Softball\\n\\n\\n\\n\\n\\n\\n\\nCricket: Select Matches\\n\\n\\n\\n\\n\\n\\n\\nMel Kiper's NFL Mock Draft 3.0\\n\\n\\nQuick Links\\n\\n\\n\\n\\nMen's Tournament Challenge\\n\\n\\n\\n\\n\\n\\n\\nWomen's Tournament Challenge\\n\\n\\n\\n\\n\\n\\n\\nNFL Draft Order\\n\\n\\n\\n\\n\\n\\n\\nHow To Watch NHL Games\\n\\n\\n\\n\\n\\n\\n\\nFantasy Baseball: Sign Up\\n\\n\\n\\n\\n\\n\\n\\nHow To Watch PGA TOUR\\n\\n\\n\\n\\n\\n\\nFavorites\\n\\n\\n\\n\\n\\n\\n      Manage Favorites\\n      \\n\\n\\n\\nCustomize ESPNSign UpLog InESPN Sites\\n\\n\\n\\n\\nESPN Deportes\\n\\n\\n\\n\\n\\n\\n\\nAndscape\\n\\n\\n\\n\\n\\n\\n\\nespnW\\n\\n\\n\\n\\n\\n\\n\\nESPNFC\\n\\n\\n\\n\\n\\n\\n\\nX Games\\n\\n\\n\\n\\n\\n\\n\\nSEC Network\\n\\n\\nESPN Apps\\n\\n\\n\\n\\nESPN\\n\\n\\n\\n\\n\\n\\n\\nESPN Fantasy\\n\\n\\nFollow ESPN\\n\\n\\n\\n\\nFacebook\\n\\n\\n\\n\\n\\n\\n\\nTwitter\\n\\n\\n\\n\\n\\n\\n\\nInstagram\\n\\n\\n\\n\\n\\n\\n\\nSnapchat\\n\\n\\n\\n\\n\\n\\n\\nYouTube\\n\\n\\n\\n\\n\\n\\n\\nThe ESPN Daily Podcast\\n\\n\\nAre you ready for Opening Day? Here's your guide to MLB's offseason chaosWait, Jacob deGrom is on the Rangers now? Xander Bogaerts and Trea Turner signed where? And what about Carlos Correa? Yeah, you're going to need to read up before Opening Day.12hESPNIllustration by ESPNEverything you missed in the MLB offseason3h2:33World Series odds, win totals, props for every teamPlay fantasy baseball for free!TOP HEADLINESQB Jackson has requested trade from RavensSources: Texas hiring Terry as full-time coachJets GM: No rush on Rodgers; Lamar not optionLove to leave North Carolina, enter transfer portalBelichick to angsty Pats fans: See last 25 yearsEmbiid out, Harden due back vs. Jokic, NuggetsLynch: Purdy 'earned the right' to start for NinersMan Utd, Wrexham plan July friendly in San DiegoOn paper, Padres overtake DodgersLAMAR WANTS OUT OF BALTIMOREMarcus Spears identifies the two teams that need Lamar Jackson the most7h2:00Would Lamar sit out? Will Ravens draft a QB? Jackson trade request insightsLamar Jackson has asked Baltimore to trade him, but Ravens coach John Harbaugh hopes the QB will be back.3hJamison HensleyBallard, Colts will consider trading for QB JacksonJackson to Indy? Washington? Barnwell ranks the QB's trade fitsSNYDER'S TUMULTUOUS 24-YEAR RUNHow Washington’s NFL franchise sank on and off the field under owner Dan SnyderSnyder purchased one of the NFL's marquee franchises in 1999. Twenty-four years later, and with the team up for sale, he leaves a legacy of on-field futility and off-field scandal.13hJohn KeimESPNIOWA STAR STEPS UP AGAINJ-Will: Caitlin Clark is the biggest brand in college sports right now8h0:47'The better the opponent, the better she plays': Clark draws comparisons to TaurasiCaitlin Clark's performance on Sunday had longtime observers going back decades to find comparisons.16hKevin PeltonWOMEN'S ELITE EIGHT SCOREBOARDMONDAY'S GAMESCheck your bracket!NBA DRAFTHow top prospects fared on the road to the Fina
       " Document(page_content='GoogleSearch Images Maps Play YouTube News Gmail Drive More »Web History | Settings | Sign in\\xa0Advanced searchAdvertisingBusiness SolutionsAbout Google© 2023 - Privacy - Terms   ', lookup_str='', metadata={'source': 'https://google.com'}, lookup_index=0)]"
      ]
     },
     "execution_count": 10,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "loader = WebBaseLoader([\"https://www.espn.com/\", \"https://google.com\"])\n",
    "loader.requests_per_second = 1\n",
    "docs = loader.aload()\n",
    "docs"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "e337b130",
   "metadata": {},
   "source": [
    "## Loading a xml file, or using a different BeautifulSoup parser\n",
    "\n",
    "You can also look at `SitemapLoader` for an example of how to load a sitemap file, which is an example of using this feature."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "id": "16530c50",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "[Document(page_content='\\n\\n10\\nEnergy\\n3\\n2018-01-01\\n2018-01-01\\nfalse\\nUniform test method for the measurement of energy efficiency of commercial packaged boilers.\\n§ 431.86\\nSection § 431.86\\n\\nEnergy\\nDEPARTMENT OF ENERGY\\nENERGY CONSERVATION\\nENERGY EFFICIENCY PROGRAM FOR CERTAIN COMMERCIAL AND INDUSTRIAL EQUIPMENT\\nCommercial Packaged Boilers\\nTest Procedures\\n\\n\\n\\n\\n§\\u2009431.86\\nUniform test method for the measurement of energy efficiency of commercial packaged boilers.\\n(a) Scope. This section provides test procedures, pursuant to the Energy Policy and Conservation Act (EPCA), as amended, which must be followed for measuring the combustion efficiency and/or thermal efficiency of a gas- or oil-fired commercial packaged boiler.\\n(b) Testing and Calculations. Determine the thermal efficiency or combustion efficiency of commercial packaged boilers by conducting the appropriate test procedure(s) indicated in Table 1 of this section.\\n\\nTable 1—Test Requirements for Commercial Packaged Boiler Equipment Classes\\n\\nEquipment category\\nSubcategory\\nCertified rated inputBtu/h\\n\\nStandards efficiency metric(§\\u2009431.87)\\n\\nTest procedure(corresponding to\\nstandards efficiency\\nmetric required\\nby §\\u2009431.87)\\n\\n\\n\\nHot Water\\nGas-fired\\n≥300,000 and ≤2,500,000\\nThermal Efficiency\\nAppendix A, Section 2.\\n\\n\\nHot Water\\nGas-fired\\n>2,500,000\\nCombustion Efficiency\\nAppendix A, Section 3.\\n\\n\\nHot Water\\nOil-fired\\n≥300,000 and ≤2,500,000\\nThermal Efficiency\\nAppendix A, Section 2.\\n\\n\\nHot Water\\nOil-fired\\n>2,500,000\\nCombustion Efficiency\\nAppendix A, Section 3.\\n\\n\\nSteam\\nGas-fired (all*)\\n≥300,000 and ≤2,500,000\\nThermal Efficiency\\nAppendix A, Section 2.\\n\\n\\nSteam\\nGas-fired (all*)\\n>2,500,000 and ≤5,000,000\\nThermal Efficiency\\nAppendix A, Section 2.\\n\\n\\n\\u2003\\n\\n>5,000,000\\nThermal Efficiency\\nAppendix A, Section 2.OR\\nAppendix A, Section 3 with Section 2.4.3.2.\\n\\n\\n\\nSteam\\nOil-fired\\n≥300,000 and ≤2,500,000\\nThermal Efficiency\\nAppendix A, Section 2.\\n\\n\\nSteam\\nOil-fired\\n>2,500,000 and ≤5,000,000\\nThermal Efficiency\\nAppendix A, Section 2.\\n\\n\\n\\u2003\\n\\n>5,000,000\\nThermal Efficiency\\nAppendix A, Section 2.OR\\nAppendix A, Section 3. with Section 2.4.3.2.\\n\\n\\n\\n*\\u2009Equipment classes for commercial packaged boilers as of July 22, 2009 (74 FR 36355) distinguish between gas-fired natural draft and all other gas-fired (except natural draft).\\n\\n(c) Field Tests. The field test provisions of appendix A may be used only to test a unit of commercial packaged boiler with rated input greater than 5,000,000 Btu/h.\\n[81 FR 89305, Dec. 9, 2016]\\n\\n\\nEnergy Efficiency Standards\\n\\n', lookup_str='', metadata={'source': 'https://www.govinfo.gov/content/pkg/CFR-2018-title10-vol3/xml/CFR-2018-title10-vol3-sec431-86.xml'}, lookup_index=0)]"
      ]
     },
     "execution_count": 2,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "loader = WebBaseLoader(\"https://www.govinfo.gov/content/pkg/CFR-2018-title10-vol3/xml/CFR-2018-title10-vol3-sec431-86.xml\")\n",
    "loader.default_parser = \"xml\"\n",
    "docs = loader.load()\n",
    "docs\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "1dd8ab23",
   "metadata": {},
   "outputs": [],
   "source": []
  }
 ],
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