{"id":494,"date":"2017-12-26T14:26:07","date_gmt":"2017-12-26T07:26:07","guid":{"rendered":"http:\/\/localhost\/vietmywood\/?p=494"},"modified":"2017-12-27T18:13:25","modified_gmt":"2017-12-27T11:13:25","slug":"dac-theo-thong-quoc-te-nhla","status":"publish","type":"post","link":"\/?p=494","title":{"rendered":"\u0110o \u0111\u1ea1c theo h\u1ec7 th\u1ed1ng qu\u1ed1c t\u1ebf (NHLA)"},"content":{"rendered":"

G\u1ed7 c\u1ee9ng x\u1ebb Hoa K\u1ef3 \u0111\u01b0\u1ee3c ph\u00e2n h\u1ea1ng theo nh\u1eefng ti\u00eau chu\u1ea9n do Hi\u1ec7p h\u1ed9i G\u1ed7 c\u1ee9ng x\u1ebb Hoa K\u1ef3 (NHLA) \u0111\u1ec1 ra. Nh\u1eefng ti\u00eau chu\u1ea9n c\u1ee7a NHLA \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp v\u1edbi xu h\u01b0\u1edbng th\u01b0\u01a1ng m\u1ea1i \u0111\u1ed3 g\u1ed7, quy \u0111\u1ecbnh m\u1ed9t t\u1ef7 l\u1ec7 ph\u1ea7n tr\u0103m nh\u1ea5t \u0111\u1ecbnh v\u1ec1 m\u1eb7t g\u1ed7 s\u1ea1ch, kh\u00f4ng khi\u1ebfm khuy\u1ebft cho t\u1eebng h\u1ea1ng g\u1ed7.<\/em><\/span><\/p>\n

C\u00e1ch ph\u00e2n h\u1ea1ng c\u1ee7a NHLA d\u1ef1a tr\u00ean t\u1ef7 l\u1ec7 g\u1ed7 s\u1ea1ch tr\u00ean m\u1ed9t thanh g\u1ed7. C\u00e1ch \u0111o \u0111\u1ea1c t\u1ef7 l\u1ec7 n\u00e0y g\u1ecdi l\u00e0 c\u00e1c \u0111o\u1ea1n g\u1ed7 s\u1ea1ch. Ngo\u1ea1i tr\u1eeb ph\u00e2n h\u1ea1ng FAS, ph\u00e2n h\u1ea1ng c\u1ee7a m\u1ed9t thanh g\u1ed7 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh t\u1eeb t\u1ef7 l\u1ec7 c\u1ee7a nh\u1eefng \u0111o\u1ea1n g\u1ed7 s\u1ea1ch n\u00e0y v\u00e0 kh\u00f4ng x\u00e9t \u0111\u1ebfn c\u00e1c khi\u1ebfm khuy\u1ebft b\u00ean ngo\u00e0i v\u00f9ng g\u1ed7 s\u1ea1ch.<\/span><\/p>\n

C\u00e1ch \u0111o:<\/strong><\/span><\/p>\n

C\u00e1c ph\u00e2n h\u1ea1ng NHLA d\u1ef1a tr\u00ean h\u1ec7 inches v\u00e0 feet. H\u01a1n n\u1eefa, c\u00e1c quy \u0111\u1ecbnh \u0111\u01b0\u1ee3c \u0111\u01b0a ra d\u1ef1a tr\u00ean chi\u1ec1u d\u00e0i v\u00e0 r\u1ed9ng ng\u1eabu nhi\u00ean. Boardfoot (BF) l\u00e0 \u0111\u01a1n v\u1ecb \u0111o.<\/span><\/p>\n

BF: 1 foot d\u00e0i, 1 foot r\u1ed9ng, 1 inch d\u00e0y<\/span>
\n(1foot = 0,3025m, 1inch = 25,4mm)<\/span><\/p>\n

\u0110\u1ec3 x\u00e1c \u0111\u1ecbnh board feet tr\u00ean m\u1ed9t thanh g\u1ed7: Nh\u00e2n chi\u1ec1u r\u1ed9ng b\u1eb1ng inch v\u1edbi chi\u1ec1u d\u00e0i b\u1eb1ng feet v\u00e0 chia cho 12. N\u1ebfu thanh g\u1ed7 x\u1ebb d\u00e0y h\u01a1n 1inch, nh\u00e2n v\u1edbi \u0111\u1ed9 d\u00e0y.<\/span><\/p>\n

Di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t (surface measure \u2013 S.M) l\u00e0 di\u1ec7n t\u00edch thanh g\u1ed7 t\u00ednh b\u1eb1ng feet vu\u00f4ng. T\u1ef7 l\u1ec7 g\u1ed7 s\u1ea1ch y\u00eau c\u1ea7u c\u1ee7a m\u1ed7i ph\u00e2n h\u1ea1ng d\u1ef1a tr\u00ean di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t (S.M), kh\u00f4ng ph\u1ea3i board feet, do \u0111\u00f3 m\u1ecdi thanh g\u1ed7 \u0111\u1ec1u \u0111\u01b0\u1ee3c ph\u00e2n h\u1ea1ng nh\u01b0 nhau b\u1ea5t k\u1ec3 \u0111\u1ed9 d\u00e0y.<\/span><\/p>\n

\u0110\u1ec3 x\u00e1c \u0111\u1ecbnh di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t: Nh\u00e2n chi\u1ec1u r\u1ed9ng to\u00e0n b\u1ed9 v\u1edbi chi\u1ec1u d\u00e0i ti\u00eau chu\u1ea9n c\u1ee7a thanh g\u1ed7 v\u00e0 chia cho 12, l\u00e0m tr\u00f2n \u0111\u1ebfn s\u1ed1 nguy\u00ean g\u1ea7n nh\u1ea5t.<\/span><\/p>\n

V\u00ed d\u1ee5 v\u1ec1 x\u00e1c \u0111\u1ecbnh di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t:<\/span>
\n6 \u00bd \u201c x 8\u2019 :12 = 4 1\/3= 4\u2019 S.M<\/span>
\n8\u201d x 12\u2019 : 12 = 8\u2019 S.M<\/span>
\n10\u201d x 13\u2019 : 12 = 10 10\/12 = 11\u2019 S.M<\/span><\/p>\n

Khi \u0111\u00e3 x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c ph\u00e2n h\u1ea1ng, nh\u00e2n S.M v\u1edbi \u0111\u1ed9 d\u00e0y \u0111\u1ec3 t\u00ednh board feet.<\/span><\/p>\n

Chuy\u1ec3n \u0111\u1ed5i sang h\u1ec7 m\u00e9t:<\/strong><\/span><\/p>\n

1\u201d = 25,4mm<\/span>
\n1m = 3,281feet<\/span>
\n1.000B F. (1 MBF) = 2.36m3<\/sup>
\n1m3<\/sup>\u00a0= 424 board feet<\/span>
\n1m3<\/sup>\u00a0= 35,315 feet kh\u1ed1i (Cu.Ft.)<\/span><\/p>\n

C\u00e1c \u0111\u1ed9 d\u00e0y ti\u00eau chu\u1ea9n c\u1ee7a g\u1ed7 x\u1ebb th\u00f4 v\u00e0 b\u00e0o l\u00e1ng:<\/strong><\/span><\/p>\n

\u0110\u1ed9 d\u00e0y c\u1ee7a g\u1ed7 x\u1ebb \u0111\u01b0\u1ee3c di\u1ec5n t\u1ea3 b\u1eb1ng ph\u1ea7n t\u01b0 c\u1ee7a 1inch. Khi ph\u00e2n h\u1ea1ng g\u1ed7 x\u1ebb, c\u00e1c khi\u1ebfm khuy\u1ebft nh\u01b0 n\u1ee9t, v\u1ebft \u1ed1, cong v\u00eanh kh\u00f4ng b\u1ecb xem nh\u01b0 khi\u1ebfm khuy\u1ebft n\u1ebfu ch\u00fang c\u00f3 th\u1ec3 b\u00e0o \u0111i \u1edf \u0111\u1ed9 d\u00e0y ti\u00eau chu\u1ea9n (S2S). C\u00e1c \u0111\u1ed9 d\u00e0y ti\u00eau chu\u1ea9n v\u00e0 \u0111\u1ed9 d\u00e0y b\u00e0o \u0111i c\u00f9ng v\u1edbi s\u1ed1 \u0111o theo h\u1ec7 m\u00e9t nh\u01b0 sau:<\/p>\n\n\n\n\n\n\n\n
\n

Th\u00f4 (Inch)<\/strong><\/span><\/p>\n<\/td>\n

\n

Th\u00f4 (Mm)<\/strong><\/span><\/p>\n<\/td>\n

\n

B\u00e0o l\u00e1ng\u00a0(Mm)<\/strong><\/span><\/p>\n<\/td>\n

\n

D\u00e0y (Inch)<\/strong><\/span><\/p>\n<\/td>\n

\n

Th\u00f4 (Mm)<\/strong><\/span><\/p>\n<\/td>\n

\n

B\u00e0o l\u00e1ng\u00a0(Mm)<\/strong><\/span><\/p>\n<\/td>\n<\/tr>\n

\n

3\/4<\/strong><\/span><\/p>\n<\/td>\n

\n

19.0<\/strong><\/span><\/p>\n<\/td>\n

\n

14.2<\/strong><\/span><\/p>\n<\/td>\n

\n

8\/4<\/strong><\/span><\/p>\n<\/td>\n

\n

50.8<\/strong><\/span><\/p>\n<\/td>\n

\n

44.4<\/strong><\/span><\/p>\n<\/td>\n<\/tr>\n

\n

4\/4<\/strong><\/span><\/p>\n<\/td>\n

\n

25.4<\/strong><\/span><\/p>\n<\/td>\n

\n

20.6<\/strong><\/span><\/p>\n<\/td>\n

\n

10\/4<\/strong><\/span><\/p>\n<\/td>\n

\n

63.5<\/strong><\/span><\/p>\n<\/td>\n

\n

57.2<\/strong><\/span><\/p>\n<\/td>\n<\/tr>\n

\n

5\/4<\/strong><\/span><\/p>\n<\/td>\n

\n

31.8<\/strong><\/span><\/p>\n<\/td>\n

\n

27.0<\/strong><\/span><\/p>\n<\/td>\n

\n

12\/4<\/strong><\/span><\/p>\n<\/td>\n

\n

76.2<\/strong><\/span><\/p>\n<\/td>\n

\n

69.8<\/strong><\/span><\/p>\n<\/td>\n<\/tr>\n

\n

6\/4<\/strong><\/span><\/p>\n<\/td>\n

\n

38.1<\/strong><\/span><\/p>\n<\/td>\n

\n

33.3<\/strong><\/span><\/p>\n<\/td>\n

\n

16\/4<\/strong><\/span><\/p>\n<\/td>\n

\n

101.6<\/strong><\/span><\/p>\n<\/td>\n

\n

95.2<\/strong><\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

C\u00e1ch \u0111o g\u1ed7 x\u1ebb \u0111\u00e3 s\u1ea5y:<\/strong><\/span><\/p>\n

Net Tally: board feet th\u1ef1c t\u1ebf sau khi \u0111\u00e3 s\u1ea5y kh\u00f4<\/span>
\nGreen Tally: board feet th\u1ef1c t\u1ebf tr\u01b0\u1edbc khi s\u1ea5y kh\u00f4<\/span>
\nCo r\u00fat: Chi\u1ec1u r\u1ed9ng c\u00f3 th\u1ec3 l\u00e0 \u00bc\u201d it h\u01a1n chi\u1ec1u r\u1ed9ng t\u1ed1i thi\u1ec3u y\u00eau c\u1ea7u<\/span>
\n\u0110\u1ed9 d\u00e0y c\u00f3 th\u1ec3 1\/16\u201d m\u1ecfng h\u01a1n \u0111\u1ed9 d\u00e0y t\u1ed1i thi\u1ec3u y\u00eau c\u1ea7u<\/span><\/p>\n

C\u00e1c ph\u00e2n h\u1ea1ng chu\u1ea9n:<\/strong><\/span><\/p>\n

T\u1ea5t c\u1ea3 c\u00e1c thanh g\u1ed7 \u0111\u01b0\u1ee3c ph\u00e2n h\u1ea1ng t\u1eeb m\u1eb7t x\u1ea5u. T\u1ef7 l\u1ec7 g\u1ed7 s\u1ea1ch c\u1ee7a m\u1ed7i thanh \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1eb1ng c\u00e1ch \u0111o chi\u1ec1u r\u1ed9ng c\u1ee7a di\u1ec7n t\u00edch g\u1ed7 s\u1ea1ch t\u00ednh b\u1eb1ng inch nh\u00e2n v\u1edbi chi\u1ec1u d\u00e0i c\u1ee7a di\u1ec7n t\u00edch g\u1ed7 s\u1ea1ch b\u1eb1ng feet.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

G\u1ed7 c\u1ee9ng x\u1ebb Hoa K\u1ef3 \u0111\u01b0\u1ee3c ph\u00e2n h\u1ea1ng theo nh\u1eefng ti\u00eau chu\u1ea9n do Hi\u1ec7p h\u1ed9i G\u1ed7 c\u1ee9ng x\u1ebb Hoa K\u1ef3 (NHLA) \u0111\u1ec1 ra. Nh\u1eefng ti\u00eau chu\u1ea9n c\u1ee7a NHLA \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp v\u1edbi xu h\u01b0\u1edbng th\u01b0\u01a1ng m\u1ea1i \u0111\u1ed3 g\u1ed7, quy \u0111\u1ecbnh m\u1ed9t t\u1ef7 l\u1ec7 ph\u1ea7n tr\u0103m nh\u1ea5t \u0111\u1ecbnh v\u1ec1 m\u1eb7t g\u1ed7 s\u1ea1ch, kh\u00f4ng khi\u1ebfm khuy\u1ebft cho t\u1eebng h\u1ea1ng g\u1ed7. C\u00e1ch ph\u00e2n h\u1ea1ng c\u1ee7a NHLA d\u1ef1a tr\u00ean t\u1ef7 l\u1ec7 g\u1ed7 s\u1ea1ch tr\u00ean m\u1ed9t thanh g\u1ed7. C\u00e1ch \u0111o \u0111\u1ea1c t\u1ef7 l\u1ec7 n\u00e0y g\u1ecdi l\u00e0 c\u00e1c \u0111o\u1ea1n g\u1ed7 s\u1ea1ch. Ngo\u1ea1i tr\u1eeb ph\u00e2n h\u1ea1ng FAS, ph\u00e2n h\u1ea1ng c\u1ee7a m\u1ed9t thanh g\u1ed7 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh t\u1eeb <\/p>\n","protected":false},"author":5,"featured_media":645,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"status","meta":{"footnotes":""},"categories":[1],"tags":[],"_links":{"self":[{"href":"\/index.php?rest_route=\/wp\/v2\/posts\/494"}],"collection":[{"href":"\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"\/index.php?rest_route=\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=494"}],"version-history":[{"count":1,"href":"\/index.php?rest_route=\/wp\/v2\/posts\/494\/revisions"}],"predecessor-version":[{"id":495,"href":"\/index.php?rest_route=\/wp\/v2\/posts\/494\/revisions\/495"}],"wp:featuredmedia":[{"embeddable":true,"href":"\/index.php?rest_route=\/wp\/v2\/media\/645"}],"wp:attachment":[{"href":"\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=494"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=494"},{"taxonomy":"post_tag","embeddable":true,"href":"\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=494"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}