Calibration Specification rau Flash Point Measuring Instruments

Lub calibration specification rau qhib / kaw flash point ntsuas ntsuas lub hom phiaj los xyuas kom meej qhov tseeb thiab kev ntseeg tau ntawm kev ntsuas ntsuas. Nws yog feem ntau raws li lub teb chaws metrological technical specification JJF 1384-2012 "Calibration Specification for Open/Closed Flash Point Measuring Instruments."

Cov ntsiab lus tseem ceeb yog raws li nram no:

1. Cov xwm txheej Calibration

Environmental Requirements

Kub: 0 ​​degree mus rau 40℃(qee specifications pom zoo 20 ± 5℃kom txo qhov cuam tshuam ntawm kub thiab av noo hloov).

Humidity: Tsawg dua los yog sib npaug rau 85% RH (kom tiv thaiv kom tsis txhob muaj qhov cuam tshuam rau hauv Circuit Court).

Lwm yam: Tsis muaj corrosive gases, muaj zog electromagnetic cuam tshuam, los yog kev co qhov chaw; xyuas kom ruaj khov fais fab mov voltage (hloov ntau yam yuav tsum tau raws li cov khoom yuav tsum tau).

Cov ntaub ntawv siv

Xaiv cov qauv qauv ntawv pov thawj los ntawm lub teb chaws metrology department. Lawv qhov flash point qhov tseem ceeb yuav tsum npog qhov ntsuas qhov ntsuas (piv txwv li, chav tsev kub txog 400 degree), nrog qhov tsis paub tseeb tsawg dua lossis sib npaug li ± 0.5 degree.

Piv txwv li: n-Heptane (tus qauv tus nqi -4 degree, tsis paub meej ± 0.3 degree) yog siv rau qhov ntsuas kub qis.

2. Calibration Projects thiab txheej txheem

Kev tshuaj xyuas qhov muag

Paub meej tias cov qauv ntsuas, specifications, serial tooj, thiab lwm yam ntaub ntawv tiav. Tshawb xyuas kev puas tsuaj rau cov khoom siv hluav taws xob, kev sib txuas hluav taws xob ib txwm, thiab cov khoom ua tiav (piv txwv li, ignition device, kub sensor).

Zero Point Calibration

Ua ntej ntxiv cov qauv, xoom lub ntsuas kom tshem tawm cov kev ua yuam kev.

Standard Sample Test

Siv cov khoom siv hluav taws xob hluav taws xob ze ze rau qhov ntsuas qhov ntsuas qhov ntsuas kub, ua raws li cov kauj ruam no:

Kev tswj cua sov: Teem lub cua sov (piv txwv li, 5-6℃/ min) raws li tus qauv (xws li ASTM D92 lossis GB / T 267-88).

Nplaim hluav taws xob scanning: Nyob rau hauv lub sijhawm ntsuas kub (piv txwv li, sim txhua 1℃thaum qhov xav tau flash point tsawg dua lossis sib npaug li 110 degree), cheb lub khob ntsuas nrog cov nplaim taws thiab sau qhov ntsuas kub qis tshaj plaws.

Kev ntsuas rov ua dua: ntsuas tsis tu ncua peb zaug thiab suav qhov rov ua dua ntawm qhov ntsuas (JJF 1384-2012 qhia tsawg dua lossis sib npaug rau 8.0 degree).

Kev suav ntawm Indication yuam kev

Kho qhov ntsuas ntsuas rau tus qauv atmospheric siab (101.3 kPa), muab piv nrog tus qauv tus nqi ntawm cov ntaub ntawv siv, thiab suav cov cim qhia yuam kev (JJF 1384-2012 qhia tsawg dua lossis sib npaug rau 12.0℃).

Piv txwv: Yog tias tus qauv tus nqi yog 150℃thiab qhov ntsuas tus nqi yog 155 degree, qhov yuam kev yog +5℃(txiav txim siab yog tias nws tshaj qhov txwv).

Atmospheric Pressure Compensation

Hloov kho qhov ntsuas ntsuas raws li qhov ntsuas huab cua nyob ib puag ncig kom ntsuas qhov sib xws ntawm qhov siab sib txawv (xws li, thaum huab cua siab qis hauv qhov siab siab, tus nqi flash point yuav tsum tau kho downward).

3. Calibration voj voog thiab cov ntaub ntawv

Calibration voj voog

Pom zoo txhua xyoo, tab sis tuaj yeem hloov kho raws li kev siv zaus thiab ib puag ncig (xws li, rau kev siv ntau zaus lossis ib puag ncig hnyav, luv rau 6 lub hlis).

Calibration Record

Yuav tsum suav nrog cov ntaub ntawv ntsuas, hnub ntsuas ntsuas, ib puag ncig ib puag ncig, cov ntaub ntawv xov xwm txheej txheem, cov ntaub ntawv ntsuas ntsuas, ntsuas qhov tshwm sim, thiab lwm cov ntsiab lus ntsig txog.