Keilim2: 1
[א] כְּלֵי עֵץ, וּכְלֵי עוֹר, וּכְלֵי עֶצֶם, וּכְלֵי זְכוּכִית — פְּשׁוּטֵיהֶן טְהוֹרִים, וּמְקַבְּלֵיהֶן טְמֵאִים. נִשְׁבְּרוּ — טָהֵרוּ. חָזַר וְעָשָׂה מֵהֶם כֵּלִים — מְקַבְּלִין טֻמְאָה מִכָּאן וּלְהַבָּא. כְּלֵי חֶרֶס וּכְלֵי נֶתֶר — טֻמְאָתָן שָׁוָה: מִתְטַמְּאִין וּמְטַמְּאִין בָּאֲוִיר, וּמִטַּמְּאִין מֵאֲחוֹרֵיהֶן, וְאֵינָן מִטַּמְּאִין מִגַּבֵּיהֶן, וּשְׁבִירָתָן הִיא טָהֳרָתָן.
Wooden utensils, leather utensils, bone utensils, and glass utensils: Their flatwares are tahor but their hollowares are tamei; [if] they break, they become tahor; [if] one remade [the broken utensils] into [new] utensils, they are susceptible to tumah from then on. Earthenware utensils and nesser utensils are identical in their [laws of] tumah: They contract tumah and transmit tumah via airspace; they contract tumah via [a receptacle in] their exterior; they do not contract tumah via their exterior; their breakage is their taharah.
Keilim2: 2
[ב] הַדַּקִּין שֶׁבִּכְלֵי חֶרֶס, וְקַרְקְרוֹתֵיהֶן, וְדַפְנוֹתֵיהֶן יוֹשְׁבִין שֶׁלֹּא מְסוּמָּכִין — שִׁעוּרָן מִכְּדֵי סִיכַת קָטָן וְעַד לֹג. מִלֹּג וְעַד סְאָה — בִּרְבִיעִית. מִסְּאָה וְעַד סָאתַיִם — בַּחֲצִי לֹג. מִסָּאתַיִם וְעַד שָׁלֹשׁ וְעַד חָמֵשׁ סְאִין — בְּלֹג; דִבְרֵי רַבִּי יִשְׁמָעֵאל. רַבִּי עֲקִיבָא אוֹמֵר: אֲנִי אֵינִי נוֹתֵן בָּהֶם מִדָּה, אֶלָּא, הַדַּקִּין שֶׁבִּכְלֵי חֶרֶס, וְקַרְקְרוֹתֵיהֶן, וְדַפְנוֹתֵיהֶן יוֹשְׁבִין שֶׁלֹּא מְסוּמָּכִין — שִׁעוּרָן מִכְּדֵי סִיכַת קָטָן וְעַד קְדֵרוֹת הַדַּקּוֹת. מֵהַקְּדֵרוֹת הַדַּקּוֹת וְעַד חָבִיּוֹת לוּדִיּוֹת — בִּרְבִיעִית. מִלוּדִיּוֹת וְעַד לַחְמִיּוֹת — בַּחֲצִי לֹג. מִלַחְמִיּוֹת וְעַד חֲצָבִים גְּדוֹלִים — בְּלֹג. רַבָּן יוֹחָנָן בֶּן זַכַּאי אוֹמֵר: חֲצָבִים גְּדוֹלִים שִׁעוּרָן בִּשְׁנֵי לֻגִּין. הַפַּכִּים הַגְּלִילִים וְהַחֶבְיוֹנוֹת — שִׁעוּר קַרְקְרוֹתֵיהֶן כָּל שֶׁהֵן, וְאֵין לָהֶם דְּפָנוֹת.
The smallest of the earthenware utensils and their bottoms or walls [which can] rest without support, their measure [for susceptibility to tumah] is from enough [oil] to anoint an infant and up to a log. [Utensils containing] from a log up to a se’ah [are measured] with a quarter-[log]. [Utensils containing] from a se’ah up to two se’ah [are measured] with a half-log. [Utensils containing] from two se’ah up to three [se’ah] and up to five se’ah [are measured] with a log; [these are] the words of R’ Yishmael. R’ Akiva says: I do not assign them a measurement; rather, small earthenware utensils and their bottoms or walls [which can] rest without support, their measure [for contraction of tumah] is enough [oil] to anoint an infant, and [this applies] up [to utensils the size of] small pots. [Utensils] from [the size of] small pots [up] to Lodian barrels [are measured] with a quarter-[log]. [Utensils] from [the size of] Lodian [barrels up] to Lechemian [barrels are measured] with a half-log. [Utensils] from [the size of] Lechemian [barrels up] to large casks [are measured] with a log. R’ Yochanan ben Zakkai says: Large casks — their measure is two lugin. Galilean flasks and small barrels — the measure [for] their bottoms is the smallest amount, and they have no walls.