GB/T 22500-2024動(dòng)植物油脂紫外吸光度的測(cè)定

ICS

67.200.10

CCS

X14

中華人民共和國(guó)國(guó)家標(biāo)準(zhǔn)

GB/T22500—2024/ISO3656：2011

代替GB/T22500—2008

動(dòng)植物油脂紫外吸光度的測(cè)定

Animalandvegetablefatsandoils—Determinationofultravioletabsorbance

expressedasspecificUVextinction

(ISO3656：2011,IDT)

2024-10-26發(fā)布2025-05-01實(shí)施

國(guó)家市場(chǎng)監(jiān)督管理總局發(fā)布

國(guó)家標(biāo)準(zhǔn)化管理委員會(huì)

GB/T22500—2024/ISO3656：2011

目次

前言

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Ⅲ

1

范圍

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2

規(guī)范性引用文件

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3

術(shù)語(yǔ)和定義

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4

原理

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5

試劑和材料

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6

儀器和設(shè)備

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7

扦樣

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8

試樣制備

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9

分析步驟

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3

9.1

測(cè)試溶液制備

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3

9.2

測(cè)定

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3

10

結(jié)果表示

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3

10.1

特定波長(zhǎng)下試樣的比消光系數(shù)

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3

10.2

比消光系數(shù)的變化值

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11

精密度

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4

11.1

實(shí)驗(yàn)室間測(cè)試

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4

11.2

重復(fù)性

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4

11.3

再現(xiàn)性

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4

12

測(cè)試報(bào)告

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4

附錄A（資料性）

實(shí)驗(yàn)室間比對(duì)試驗(yàn)統(tǒng)計(jì)結(jié)果

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5

參考文獻(xiàn)

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8

Ⅰ

GB/T22500—2024/ISO3656：2011

前言

本文件按照GB/T1.1—2020《標(biāo)準(zhǔn)化工作導(dǎo)則

第1部分：標(biāo)準(zhǔn)化文件的結(jié)構(gòu)和起草規(guī)則》的規(guī)

定起草。

本文件代替GB/T22500—2008《動(dòng)植物油脂

紫外吸光度的測(cè)定》，與GB/T22500—2008相

比，除結(jié)構(gòu)調(diào)整和編輯性改動(dòng)外，主要技術(shù)變化如下：

—更改了原理（見(jiàn)第4章，2008年版的第3章）；

—更改了試劑和材料（見(jiàn)5.2、5.3、5.4，2008年版的第4章）；

—更改了儀器和設(shè)備（見(jiàn)6.2，2008年版的第5章）；

—更改了測(cè)試溶液的制備（見(jiàn)9.1.2、9.1.3、9.1.4，2008年版的8.1）；

—更改了結(jié)果計(jì)算公式（見(jiàn)10.1、10.2，2008年版的第9章）。

本文件等同采用ISO3656：2011《動(dòng)植物油脂紫外吸光度的測(cè)定》。

本文件做了下列最小限度的編輯性改動(dòng)：

—納入了ISO3656：2011/Amd.1：2017的修正內(nèi)容，所涉及的條款的外側(cè)頁(yè)邊空白位置用垂直

雙線（‖）進(jìn)行了標(biāo)示；

—對(duì)有關(guān)公式進(jìn)行了編號(hào)。

請(qǐng)注意本文件的某些內(nèi)容可能涉及專利。本文件的發(fā)布機(jī)構(gòu)不承擔(dān)識(shí)別專利的責(zé)任。

本文件由國(guó)家糧食和物資儲(chǔ)備局提出。

本文件由全國(guó)糧油標(biāo)準(zhǔn)化技術(shù)委員會(huì)（SAC/TC270）歸口。

本文件起草單位：國(guó)家糧食和物資儲(chǔ)備局科學(xué)研究院、國(guó)家糧食和物資儲(chǔ)備局標(biāo)準(zhǔn)質(zhì)量中心、云南

滇雪糧油有限公司、山東金勝糧油食品有限公司、費(fèi)縣中糧油脂工業(yè)有限公司、中糧工科（西安）國(guó)際

工程有限公司、譜尼測(cè)試集團(tuán)股份有限公司、張家港海關(guān)綜合技術(shù)中心、陜西科儀陽(yáng)光檢測(cè)技術(shù)服務(wù)有

限公司、山東香馳糧油有限公司、長(zhǎng)壽花食品股份有限公司、國(guó)貿(mào)食品科學(xué)研究院有限公司、中糧營(yíng)養(yǎng)

健康研究院有限公司、日照市質(zhì)量檢驗(yàn)檢測(cè)研究院。

本文件主要起草人：段章群、楊茜、袁強(qiáng)、薛雅琳、劉安迪、魯源、劉配蓮、張小勇、韓建勛、

顧強(qiáng)、候國(guó)峰、張姍姍、王月華、陳修紅、王翔宇、苗輝。

本文件及其所代替文件的歷次版本發(fā)布情況為：

—2008年首次發(fā)布為GB/T22500—2008；

—本次為第一次修訂。

Ⅲ

GB/T22500—2024/ISO3656：2011

動(dòng)植物油脂紫外吸光度的測(cè)定

1范圍

本文件描述了動(dòng)植物油脂紫外吸光度測(cè)定的方法。

本文件適用于動(dòng)植物油脂，不適用于乳和乳制品（或從乳和乳制品中獲得的脂肪）。

2規(guī)范性引用文件

下列文件中的內(nèi)容通過(guò)文中的規(guī)范性引用而構(gòu)成本文件必不可少的條款。其中，注日期的引用文

件，僅該日期對(duì)應(yīng)的版本適用于本文件；不注日期的引用文件，其最新版本（包括所有的修改單）適用

于本文件。

ISO661動(dòng)植物油脂

試樣的制備（Animalandvegetablefatsandoils—Preparationoftest

sample）

注：GB/T15687—2008動(dòng)植物油脂

試樣的制備（ISO661：2003,IDT）

3術(shù)語(yǔ)和定義

下列術(shù)語(yǔ)和定義適用于本文件。

3.1

比消光系數(shù)specificextinction（K232-K268-K270）

1g樣品溶解于100mL異辛烷或環(huán)己烷中，在10mm比色皿中測(cè)定232nm、268nm和