כלים ב׳Kelim 2

Mishnah 1א׳

כְּלֵי עֵץ, וּכְלֵי עוֹר, וּכְלֵי עֶצֶם, וּכְלֵי זְכוּכִית, פְּשׁוּטֵיהֶן טְהוֹרִים, וּמְקַבְּלֵיהֶן טְמֵאִים. נִשְׁבְּרוּ, טָהָרוּ. חָזַר וְעָשָׂה מֵהֶם כֵּלִים, מְקַבְּלִין טֻמְאָה מִכָּאן וּלְהַבָּא. כְּלֵי חֶרֶס וּכְלֵי נֶתֶר, טֻמְאָתָן שָׁוָה. מִטַּמְּאִין וּמְטַמְּאִין בַּאֲוִיר, וּמִטַּמְּאִין מֵאֲחוֹרֵיהֶן, וְאֵינָן מִטַּמְּאִין מִגַּבֵּיהֶן, וּשְׁבִירָתָן הִיא טָהֳרָתָן:

Wooden vessels, leather vessels, bone vessels and glass vessels - their flat surfaces are pure and their concave surfaces are impure. If they break [and are impure], they become pure. If someone went back and made vessels from [the broken pieces], they can be rendered impure from then and onward. Clay vessels and lye vessels are equal in [the manner of their] impurity - they can be rendered and render [objects] impure in its interior space; and render impure by [contact] with its exterior, but do not become impure by [contact] from its outside; and their breaking [if they are impure] is their purification.

Mishnah 2ב׳

הַדַּקִּין שֶׁבִּכְלֵי חֶרֶס, וְקַרְקְרוֹתֵיהֶן, וְדָפְנוֹתֵיהֶן יוֹשְׁבִין שֶׁלֹּא מְסֻמָּכִין, שִׁעוּרָן, מִכְּדֵי סִיכַת קָטָן וְעַד לֹג. מִלֹּג וְעַד סְאָה, בִּרְבִיעִית. מִסְּאָה וְעַד סָאתַיִם, בַּחֲצִי לֹג. מִסָּאתַיִם וְעַד שָׁלֹשׁ וְעַד חָמֵשׁ סְאִין, בְּלֹג, דִּבְרֵי רַבִּי יִשְׁמָעֵאל. רַבִּי עֲקִיבָא אוֹמֵר, אֲנִי אֵינִי נוֹתֵן בָּהֶן מִדָּה, אֶלָּא, הַדַּקִּין שֶׁבִּכְלֵי חֶרֶס, וְקַרְקְרוֹתֵיהֶן, וְדָפְנוֹתֵיהֶן יוֹשְׁבִין שֶׁלֹּא מְסֻמָּכִין, שִׁעוּרָן מִכְּדֵי סִיכַת קָטָן וְעַד קְדֵרוֹת הַדַּקּוֹת. מֵהַקְּדֵרוֹת הַדַּקּוֹת וְעַד חָבִיּוֹת לוּדִיּוֹת, בִּרְבִיעִית. מִלּוּדִיּוֹת וְעַד לַחְמִיּוֹת, בַּחֲצִי לֹג. מִלַּחְמִיּוֹת וְעַד חֲצָבִים גְּדוֹלִים, בְּלֹג. רַבָּן יוֹחָנָן בֶּן זַכַּאי אוֹמֵר, חֲצָבִים גְּדוֹלִים, שִׁעוּרָן בִּשְׁנֵי לֻגִּין. הַפַּכִּים הַגְּלִילִים וְהֶחָבִיּוֹנוֹת, שִׁעוּר קַרְקְרוֹתֵיהֶן כָּל שֶׁהֵן, וְאֵין לָהֶם דְּפָנוֹת:

The smaller clay vessels or their bottoms or their sides - [if they] sit upright without something to support them - their measurement [to be eligible for impurity] is enough [to store oil] to smear an infant. [This is in the case that these items only ever had the capacity of] up to a log (about a third of liter); from a log to a seah (slightly over eight liters), [the measurement required for eligibility] is a revi'it (about 86 cubic centimeters); from one seah to two seah, half a log; from two seah to three [or even] to five seah, a log - these are the words of Rabbi Yishmael. Rabbi Akiva says, "I do not give them a measurement [to determine what is required for eligibility], but rather the smaller clay vessels or their bottoms or their sides - [if they] sit upright without something to support them - their measurement is enough to smear an infant. [This is in the case that these items were ever only] up to a small pot; from small pots to Lyddean barrels, [the measurement required] is a revi'it; from Lyddean [barrels] to Bethlehemite ones, half a log; from Bethlehemite ones to large vats, a log." Rabban Yochanan be Zakkai says, "The measurement for large vats is two log." Gallilean jars and firkins - the [required measurement] of their bottoms is any bit, but they do not have sides [that can become impure by themselves].