TCW TtEu cHuAr.r euoc ctA

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cHAr cHUA xHi HoA loncgnU AXETvLEN vA KHf s6r HoA r-6nrc) -

R\-RKIEM TRA TAI THOI DIEM NAP KHI

Cytinder for tiquefied gases (excluding acetylene and LPG) -lnspectian at time of filling

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ic6'wc rv cd pnAN KIEM DINH vAHUAN LUYEN KTAT LAO DONG

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TAI LIEU KIEM SOATSO:............

Add: 8 Hoang Quoc Viet, Cau Giay, HN j

Tel: (84'4) 37564268. Fax: (S4-4) 3S361556

Website: www.tcvninfo.org.vn

I

tnls cgpy has been made by lnlormailon i

Ccnlrr ler Standar.ds, Metro!ogy and (luallty

HA ruQl " aooa

Add: 8 Horng Quoc Viet, Cau Giav,.HN

Iel: {8,{-4i 3i56a?68. Fax' (81-t i 3836 1 556

Websile: www.tcvninfo.org. vn

6714:2ti0U

HUAN LUYEN KTAT LAO DONG--.-\ ; A', ;

TAX LXEU KXEM SOAT

TY CO PHAN KIEM DINH VA

SO:Ldl n6i d8u

TCVN 6714 :2000 hoAn toan tudng dfttng ISO 11113 : 1995 E"

TCVN 6714:2000 do Ban ki thuAl ti6u chudn TCVN/TC 58 Binh chfaFr bi6n soan, Tdng cqc Ti6u chudn - Do lrJdng - Ghdt h.rpng dd nghi,

89 Khoa hgc, C6ng ngh6 vir M6itrudng (nay lA B9 Khoa hoc vi C6ng

nghQ) ban hnnh.

Ti€u chudn niy dE dugc chuydn ddi nam 2OOB tir Ti6u chudn ViQt

Nam c&ng sd hiQu thinh Ti6u chudn Qudc gia theo quy dinh tqi

KhoAn 1 Didu 69 c0a Lugt Ti6u chudn vi Quy chudn ki thuft vittidm a, Didu 6, Nghi dinh s6 127ftA,7lND-CP cfla Chinh ph0 quy

tlinh chi tidt thi hAnh mQt sd didu c&a Luqt Ti6u chudn vi Quy

chudn ki thuQt.

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This copy has been made by lntcrmafiiln

Center lor Slandards, Metrolo[y rnd 0ualitv

3

.:jg,lycorffi*t* ruy€n KTAT r.oo pdruc-ral r,rfifl srrs'n,r o;i l

TIEU CHU -aN QUOC GI

vi kht d6t hori l6ng) - Kidm

- lnspection" at time of filling

l^1 Phgm vi 6p dt1ng

Ti€u chudn niy qui dlnh c6c y€u cdu t6i tntdu C6i v6i viQc kidm tra xdc nhgn tfnh toin ven c0a chai

ch0a khf vfn chuydn dugc dd tidp trlc srl dung. CAc ydu cdu ndy phAn 6nh tinh hinh thgc td vi c5c kinh

nghiOm hien hinh.

Ti6u chudn nAy 6p dr,rng cho chai chfa c6 dung tfch nu6c tU 0,5 I ddn 150 I dDng dd v6n.chuydn khf

ho6 l6ng (trU acetylen vi khi ddt h6a l6ng (LPG)).

Chri thfch 1 - Phdn l6n c6c y6u cdu chung niy cr)ng 6p dgng cho chai ch0a c6 dung tich nu6c nhd hdn 0,5 l.

Tl6u chudn niy kh6ng Ap dgng cho giAn chai ho{c ki6n chai cOng nhu vigc kidm tra hoflc th0 nghiOm

tldi v6i su nhi6m bdn b€n trong.

a2 Ti6u chui'n trich d5n

TCVN 6291:1997 (lSO 448:1981) Chai chfa kht ding trong c6ng nghi6p - chi nhdn dd nhAn bidt

khi ch0a

3 Dinh nghia

Trong ti6u chudn nAy sr? dgng cdrc dinh nghia sau:

3.1 Tf s6 ngp (lllling ratlo): Tf sd gi0a kh6i tugng khf trong chal v6i dung tich nu6c cOa chai.

Th6ng thuong dugc tinh blng kitogarn tr€n lit.

3.2 Khdl lu{ng n4p (flltlng welght): Khdilugng khf hoi l6ng l6n nh6l dugc ph6p nap vdo chai.

TCVN 6714 z 2000

3.3 Co cdu giim dp (pressure rellef device): Co cdudugc l{p vAo chai ho{c van chal vA dugc

thidt kd cd tam gi6m 6p sudt khi trong truong hgp I didu kiQn btt thudng d$n ddn 6p sudt b6n trong

chai ting vugt qu6 gi6 tri qui dinh.

3.4 Khdl lrrgng chal (cyllnder maee): Khdi luqng chai kd cA cilc phr,r tlng kdm theo, nhu tA vdng

ddu, vOng cd hoec vdng chai, nhung kh6ng tfnh van, m0 van ho{c nip blo vQ van.

3.5 Khdl lrrgng bl (tare weight): Khdi ludng chai kd cA c6c phU tirng k6m thio vA cAc phr; kiQn khdc

kh6ng bi th6o ra trong quA trinh nqp, nhr/ lA van, dng vA c6c thi6t bl bAo vB van'dudc l6p cd dinh hodc' bdn cd cinh.

Ch0 thich 2 - Tri sd c0a khdi luong vA / ho{c khdi lugng bl thudng duqc d6ng trdn chai rrong khi chd rgo. t

4 Kidm tra nqp t y

Phai kidm tra titng chai trudc, trong vi ngay sau khi nqp. Vi6c kldm tra khi nqp bao gdm cdc bt/dc

du6i ddy.

4.1 Tru6c khl ngp

nhf,n bidt chai ch8a (xem 5.1);

xAc minh ch0 s8 h0u chai ndu c6 yOu cdu (xem 5.2);

- x6c dlinh didu ki6n c6 thd srl dqng duEc (xem 5"3);

kidm tra x6c nhAn kh6i lugng bi c0a chai (xem 5"4);

- x6c dinh rSng cd guan c6 thdm quydn cho ph6p chai dtng dd chr?a khidd tlinh.

4.2 Trong khl nqp ^ i

- kidm tra vi€c rd khi; ,l

- kidm tra xAc nhin su vAn hAnh c0a van.

4.3 Sau khl n4p

kidm tra x6c nhfn khdi lugng nap;

kidm tra x6c nhQn d0 rd khf;

kidm tra x6c nhin su nhan bidt khi ch&a.

5 Qui trinh kidm tra tru6c khi n4p

C6c y€u cdu cr; thd ddi v6i vi$c ki6m tra dugc Iiet kO trong cAc didu tif 4.1 ddn 4.3 nhu sau

coNc.ry cd pnfrq frHUAN i-uyEll KTAT leo pot 6714 ; 2000

5.1 Nhan bldt chalTAI tI6U KIde{ so{T

SO:......

Tru6c khi nqp, chai phli tluoc x6c djnh ring

chaichfa iluqc ph6p nep t?i trqm ngp;

chaich0a kh6ng qu6 hqn kidm tra lai;

- chai chr?a (kd cl phg Xien) la thlch hgp v6i logi khf de dinh vA kh6i lugng nap;

- lo4i khi nqp ghi tr€n chai phir hop v6i mAu sdn tr6n vaichai vA v6i cdc nhdn hi€u kh6c (bdt ky sU

kh6ng tldng nhdt ndo gi[ra cic chi d5n vd Xni chrta vi mAu son phAi tlugc sfia ddi lai tru6c khi n9p).

r PhU luc A hu6ng d5n c6ch ghi cdc th6ng tin tr€n v6 chai,

5"2 Nhln bldt chri s8 hitu vi quyin duqc nqprl'

F\

Ndu co quan c6 thdm quydn cdc cdp ho{c c6ng ty c6 y€u cdu, tru6c khi nap phAi nhfln bidt chrl s& hffu

chai vi c6 sr-r cho phdp nap c0a chrl sd hftr chai.

5.3 X6c nhQn tlnh trgng cfra chal

M6i chai, van" cd cdu giAm 5p ndu c6, vdng ttQm cd, mli van ndu c6, phAi clrtgc kidm tra b€n ngoAi

bing m5t dd x6c nh6n rlng chring 6 trong tinh tr4ng sfi dr,rng dugc.

5.3.1 Tru6c khi ngp chai, phAi x6c nhfn rlng chai sgch, hoAn toln kh6ng c6 vft lq vA kh6ng c6 bdt k!hu n6ng nghi6m trgng nio, nhU lA ch6y do hd quang, phinh (m6p), dn mdn 16, hu h6ng do nung n6ng /

nhigt hodc c6c hU h6ng co hoc d6ng kd.

_Odl v6l chaith6p kh6ng hin, c6 ttrd tidn hAnh kidm tra gO bria ho{c ph6p kidm tra phir hop kh6c.iA

Ch0 thfch 3 - Kidm tra blng brla c6 thd ktrOng phit hiQn ra tdt ce cic loSi in m0n, vf dqr in m6n cgc bQ.

Cht t - Dlc bl$t quan trgng lt phll kldm tra trn mdn ho{c gl ddy cfia ttrng chal hin.

Cdn c6 quydt tlintr c0a co quan c6 thdm quydn dd x6c ttlnh rlng d6 lA sg in mdn nghiEm trgng hay chi

ld gl nh-e.

Kh6ng drJgc n?p c6c chai c6 bidu hien rO ring bi 5n mOn nghiOm trgng n6u chua kidm tra kf, lAm sqch

vA son lqi.

Kh6ng dudc nap bat ky chai n'io c6 cdc hu h6ng nghiOm trgng. PhAi chuydn cAc chai nny kh6i nc,i n?p

vd xdp ri6ng dd kidm tra, ttAnh gi6 k! hdn.

5"3.2 Tru6c khi nqp tUng chai, phAl x6c tllnh ring van l{p tr6n chai lA thfch hgp v6i loai khi da dinh vA

cAc van 6 trong tinh trqng tho6 mf,n c6c y6u cdu, d6 lA

TCVN 6714:2000

c6 cldu ndi ra c0a van thfch hop [xem vf dr,r, TCVN 6551:1999 (tSO Sl 5)];

kh6ng c6 cAc cndt bdn;

- d6 thao t6c vA kh6ng bi tdc (xem phu luc C);

khi kidm tra blng mdt khong c6 hi6n tuqng h6ng h6c I ddulen vi than van;

- co cdu giAm 6p cOa n6 ndu c6, kh0ng b! hu h6ng vd phtr hgp;

tay vdn van holc trrgc mi khod kh6ng dugc hU h6ng vi phai l5p khit hoAn todn;

- ndi chfnh x6c vAo b0 ndi nap khf. r

5.3.3 Tru6c khi ngp, phAi xdc nh{n rlng vdng tlQm cd / ren duqc l5p khft so v6i y6u cdu vi vdng d6m

cd ndu c6, kh6ng bi mdt. Ren phii ttO, kh6ng bi sirt m6 sao cho m0 ndp l5p vdo drlgc dAm bAo. Ndu .6 I Im0 bAo vQ van thtldng xuydn hoic vdng da'u duoc hAn thi ph6i kidm tra dd d6m bAo rlng n6 drroc gdn

d0ng, c6c mdi hAn kh6ng bi bong vA kh6ng bi bidn dang bdt thuong.

5.4 Kidm tra xdc nhf n khdi luqng bl cfra chai

Khdi lugng bi cOa chai phAi dugc kidm tra x6c nhfln trrr6c khi nqp l0c chai dudc det tr6n cAn nqp hodc

k€n thidt bi cin, Khdi lugng bi dt/gc d6ng tr€n chai ho{c tr6n tdm nhin phAi duoc kidm tra xAc nh6n

b&ng sd doc thr,lc td tren thang do c0a cAn, v6i sai l6ch trong khodng t 1,0 %. Khi mA h9 thdng ldp d6t

6 noi c6 tinh ddn sd lrrgng vA chAlt lugng s6n phdm cdn du, kh6ng cdn phAi xAc dinh khdi luong bi.

Kh6ng dugc n?p chai khi chua xdc dinh vA d6ng l6n chai khdi luQng bi chinh xAc. Xem phu luc B dd

x6c dlnh khdi lrrgng bi. Chl ngrJdi c6 thdm quydn m6i dugc ghi khdi tudng bi.

X6c dinh luong khi nqp vAo chai blng cAn ho{c blng 6p sudt theo bidu dd c&a khf khi, ndu nqp 6 ap { t '

sudt tndp hon didm ho6 l6ng. Khdi lugng khi ngp vAo chai duoc x6c dlnh bdi thd tich nu6c vA tf sd ngp

cldi v6i loai khi hoic blng chl s6 khdi luong nap. i

6 Qui trinh kidm tra trong khi nqp

Trong chu trinh nqp chai, ngudl n?p phAi x6c dinh

van kh6ng b! gay cAn tr8 i t5c vA thao tAc n?p khf dudc tidn hAnh thoA mdn theo y6u cdu;

van khdng bi rd ri 6 trqng th6i m8, vi dr; tai ndp cldy hoic vdng tlgm.

7 Qui trinh kldm tra sau khi nqp

7.1 Kidm tra x6c nhQn khdl lugng nap

I

coruc ry cc pHdr,r rrfnr pwH vAHUAN t Uye t't I(TAT I-eO OONC\ r;

TAi LitrU KTEFiI S(}AT 6774:2000

Ngay sau khi th6o kh6i ddy chuydn ngp, thich hqp c6 khintrng x6c dinh lUgng kht ch0a trong chai v6i dung sal cho trong 5.4.

Khdi lugng toAn bQ chai kh6ng dugc vugt qu6 kh6i lugng tdng (kh6i lugng bl c6ng khdi lrrgng ngp) cho

ph6p tt6iv6i chai.

7.2 Kldm tra xdc nhfn ilg ,rd rl

Sau khi n?p xong, nguoi n4p phAi kidm tra blng phdp th0 thlch hgp dd dam bAo rlng van ho{c co cdu

gitm 6p, n6u c6, kh6ng bi rO rl khi van d trang th6i d6ng vA di duoc ngdt kn6i bQ ndi dd nAp. ifguai

n?p c0ng phli kidm tra x6c nh{n kh6ng c6 16 ri d bd m{t gifra van vA chal"

.l

ChO thfch 4 - Oq rO ri crja mdi hdn tr€n chai dugc kidm tra x6c nhQn trong khi chd tgo vA tgl thdi didm kidm tra

dinh kV"

,l' n hai bi rd rlknong dugc srl dgng.

7.3 Kldm tra x6c nhf n kf hl$u khf chfa

Chai sau khi ngp ph6i ttuqc x6c dinh rdng khl ch0a trong chai dr.rQc kf hiQu tr6n chai ph0 hgp v6iTCVN

6291:1997 (lSO 44S). Kf hiQu d6 c6 thd drroc ghi vTnh c(lu tr€n chai, in blng khu6n th0ng ho{c nhdn

(xem vldU TCVN 6296:1997 (lSO 7225). Khi sfidr,rng mE mdu, phiixdc dinh n&ng chaidudc sdn mau

d[ng (xem vi du TCVN 6293:1997 (lSO 32).

^

)*#-;.

TCVN 6714 z 20A0

Phg lgc A(tham khAo)

DO ligu cri thd ghi tr6n v6 chai

A.1 Dir llQu nhf n bl61

khdilugng r6ng;

- ddu hiQu nh{n bi6t ddi v6i kidu dugc chdp nhfln;

nhdn I sd seri crSa ngudi ch6 tao;

ngAy th6ng nim chd tao; /|

ddu hi6u cOa co quan kidm tra c6 thdm quydn; ,\ I/

t6n / sd seri crla chO chai;

rip sudt thrl;

- cd lthd tfch:

kl hi€u y€u cdu ki thu?t cfra chai [lSO 4705; TCVN 6292:1997 (tSO 4706)1.

A.2 DO liQu nqp

kf hiQu crla khi ho{c nh6m khi;

6p sudt lAm viec;

- khdi lugng nap I thd tich nudc;

- khdiludns bi" { /l

/

A.3 Dit liQu kidm tra

ngiy th6ng ntm thr3ldn ddu; 'J

ngAy thAng ndm thfi lai;

_ngeyth6ngndmthfil9itidptheo(hidmkhiduocghinhdnvic6thddugcxdccl!nhtirngAyth&lai

cudi cing).

A.4 DO llQu khAc

- gi6i han ch6y / gi6i hAn bdn k6o;

- chil kf hiQu nhi6t luyQn;

- kf hiQu v{t li6u I m6c tudng hgp;

- ct6 giSn nd cAn hdi / d0 gi6n nE rtAn hdit6i han;

10

chidu dAy ntrd nh6't c0a v6 chai cho ph6p;

kV hi6u ren;

- c6 6ng do mrlc ga.

CONG TY CC PHAN K]EM Dl,\rYll g

FIUAN LUYEI.I KTAT LAO DONG ;,o\ A A'

'TAi r,Ipu KIEM SOATSO:.......,....

14 :2000

t

It

- Jt^

-fl ^\/

11

TCVN 6714:2000

PhU lgc B(tham khlo)

Qui trlnh miu dd x6c dlnh kh6'i lugng bt chinh xic

Dd x6c dinh kh6i lugng bi itrinh xac tidn hinh nhu sau:

8.1 Ndu chai c6 ndp van, tidn hAnh lAm sqch toAn bQ nhilng thrl cdn thidt va th6o theo thr? tu dd thao

van vA kidm tra dQ an toirn c0a chai.

8.2 Ldy van ra (xem phu lqc C).

8.3 Kidm tra s{ dn mdn, thira son 6 b6n ngoii, chdt bdn holc srl tfch tu ldng dgng E bdn trong chai* !

bing mdt ben trong vA b6n ngoAi chai. LAm sach n6u cdn, vi dU thdi v.v, XAc'itinh laitinh chdt ndu cdn,

vi dr; ddu higu dn mdn ddi h6i phAi thr? lai...

8.4 CAn chai tr6n cAn chudn hodc thidt bi c6n

a) Khi tidn hAnh cdn dAm b8o chdc ch5n rlng chl cdn nhlng chai r6ng, sgch c6 mgt l6p son vA l6p

van, lhidt bi cAn c6 dQ chinh xdc thfch hop (t 1,0 %). Phei dim bAo chai kh6ng chr?a bdt k| sAn

phdm nAo tnr6c khi cAn.

b) Ddt l6n cdn

(1) van kidu thich hop

(2) m0 van (ndu c6) drrqc ldp l6u dAi tr6n chai

(3) chai phAic6n {T ,

c) Theo sd chl c0a cdn, x6c dinh khdi lugng bi chinh x5c c0a chai kd cA van.

d) So sAnh sd chi cOa cAn v6i kh6'i luqng bi d6ng tr6n chai ndu c6. Gach b6 nhan khtii luong bic0

ndu c6 vl dd trd n6n c0" Xem B.5"

8.5 D6ng m6t gach ch6o l6n khdi ludng bi c0 ndu c6, sao cho n6 v5n d6 tfoc dd tham khAo vd sau.

Didu nAy 6p dr;ng ddi v6i khdi luqng bi 'gdc'. tldU c6 nhidu khdi lrrong bi c0, xo6 b6 gi6 tri nh6 nhdt,

ch0 f kh6ng lirm 3nh hudng ddn tfnh toAn vgn cfia'ihal. Chl gir l4i kh6i luong bi gdc (vdi gach ch6o) vA

khdi luong bi m6i.

12

h.r

\t

14: 2000

Qui trlnh duqc chip nhfn khi c6 nghi ngd van chai bi tic

C.1 N€u c6 bdt ky sr,f nghi,ngd nao khi van chai md mA khf kh6ng tho6t ra vi chai v6n cdn ch0a ludng

khi cdn lai dtJ6i 6p sudt thi phii tiSn hAnh kidm tra dd x6c dlnh ring khf qua van lA khong bi tdc.

Fhrrong ph6p dugc chdp nhfn phAi lA mQt trong c6c quy trinh sau ho{c mQt qui trinh c6 dQ an toAn

tudng duong

a) Nap khf 6 ap sudt ddn 5 bar vir kidm tra khi ndng xi cta van"

b) Dirng thi€t bi trong hlnh C.1 dd bom khi tro vdo chai blng tay.

Fc) D6i v6i chai khf ddt ho6 l6ng, phii kldm tra dd x6c dinh r8ng khdi luqng tdng crla chai dring nhu

khdi lugng bl ghi tr€n chai. Ndu c6 sai lQch duong, c6 thd chai con ch0a khi ho6 l6ng dudi 6p sudt

hoic tap chdt.

C.2 Khi da x6c dinh rSng van kh6ng bi tdc vd 6p sudt trong chai bing 6p sua't khf quydn thi c6 thd

th6o van.

C.3 Khi phSt hi6n van bi tdc hodc bi hu h6ng i kh6ng hoat d6ng thi phii xdp chai ra mdt "nd

Od ""txdt nhU sau:

a) D6ng md nhidu ldn hof,c th6ng van cho d6n khl c6 sr/ th6ng khf qua van"

b) N6i ho{c m& thidt b! an todn bEng c6c phudng ph6p kidm so6t dugc.

CRe" phuong ph6p niy duoc ep dgng cho c6c chai ch0a khf kh6ng dOc, kh6ng bdt lfra vA khf kh6ng c6

dFC. Cdn phai ch( f c6c bi6n ph6p an toAn thich hgp itd dim blo kh6ng gdy hau qui dang kd do xA

bdt ky lugng khl cdn lgi nAo khi kh6ng kidm so5t tluoc.

Ndu chai chrla khf dQc hofc khf dE ch5y ho{c CFC, phuong ph6p tJu ti6n li n6i m6t phdn van b6n trong

m[ chr;p eugc gdn ch{t vA ndi v6i chai vir van xi mQt c6ch an todn. Nguydn lf cta thidt bi thfch hgp

dUoc n6u trdn hinh C.2,

c6c qui trinh niry phii do nhfrng ngudi drrgc ddo tgo thqrc hiQn" Khi khf, ndu c6, de duoc th6o ra vi 6p

sua't trong chai dE giim xudng b8ng 6p sudt fhf quydn vA khi kh6ng c6"suong ho{c nu6c 6 b€n ngodi

chai thl c6 thd th6o van ra.

J-iijnN LUYEN KTAT LAO DQfiffiI;i|

13

TCVN 6714 : 2000

Vd bao boc hrjr

dng cao su (O rrong 8;O ngoAi 1g) tAm <tQm hinh qui

oliu vA ndi vAo nhau.

Hlnh C.l - Thldt bl dd phdt hlQn van b!t{c {"

Vdng li6n kCt

Nhu mQt khi ning dC

kgp, v6 bqc hrit c6 rhd

drrqc li+n ren dd gdn

vAo vdng cd oa Ougc

li€n ren.

Kgp(ndu y0u c{u lhtc6 thrlkgp duti phCn dd chalvdl thanh k6o dAi hoo)

i Frn bAng d6n9 (o trong g:j O nOoAi E) r

14

Hlnh C.2 - Thidt bt tl6u bidu dC van bi hu h6ng ho{c t8c

TCVN 6714: 2000

-u

Phg lgc D

(tham khSo)

Thumgc

11] ISO 32:1977 Gas cylinders for medical use - Marking for identilication of content"

121 ISO 4705:1983 Relillable seamless steel gas cylinders.

[3J TCVN 6292:1997 (lSO 4706:1989) Chai chrla khi btng th6p hdn c6 thd nap lai.

t4l TCVN 6551:1999 (lSO 5145:1990) Ddu ra c0a van chai chfa khivA h6n hgp khi - Lrra chon vd x6c

dlnh kich thudc.

rl,iJ ISO 6406:1992 Periodic inspection and testing of seamless steelgas cylinders.

t6l ISO 7225:1994 Gas cylinders - Precautionary labels.

I7l ISO 10297:1999 Gas cylinder valves - Specifications and testing.

t8] ISO 10460:1993 Welded carbon steel gas cylinders - Periodic inspection and testing.

l9l ISO 11 117:1998 Gas cylinders - Valve protection caps and valve guards for industrial anb medical

gas cylinders * Design, construction and tests.

^1fq

15