標(biāo)準(zhǔn)解讀

《GB/T 15688-2024 動植物油脂 不溶性雜質(zhì)含量的測定》與《GB/T 15688-2008 動植物油脂 不溶性雜質(zhì)含量的測定》相比,主要在以下幾個方面進(jìn)行了調(diào)整和更新:

  1. 適用范圍與規(guī)范性引用文件:新版標(biāo)準(zhǔn)可能根據(jù)近年來動植物油脂行業(yè)的發(fā)展和技術(shù)進(jìn)步,更新了適用的油品種類范圍,并修訂了規(guī)范性引用文件,確保所引用的標(biāo)準(zhǔn)是最新的,以適應(yīng)檢測技術(shù)和設(shè)備的更新。

  2. 檢測方法的改進(jìn):2024版標(biāo)準(zhǔn)可能對不溶性雜質(zhì)含量的檢測方法進(jìn)行了優(yōu)化或新增了更精確、高效的分析技術(shù),比如引入自動化檢測手段,提高檢測效率和準(zhǔn)確性,減少人為誤差。

  3. 精密度與準(zhǔn)確度的要求:新標(biāo)準(zhǔn)可能對實(shí)驗(yàn)結(jié)果的精密度(如重復(fù)性和再現(xiàn)性)以及準(zhǔn)確度提出了更高或更具體的要求,確保測試結(jié)果的一致性和可靠性。

  4. 樣品處理步驟的調(diào)整:為了更好地適應(yīng)不同種類油脂的特性,新版標(biāo)準(zhǔn)可能對樣品的預(yù)處理步驟進(jìn)行了修改,如調(diào)整了溶劑的使用量、加熱溫度和時(shí)間等,以更有效地分離不溶性雜質(zhì)。

  5. 環(huán)保與安全要求:鑒于對環(huán)境保護(hù)和實(shí)驗(yàn)室操作安全的重視增加,2024版標(biāo)準(zhǔn)可能加入了更多關(guān)于實(shí)驗(yàn)廢棄物處理、有害化學(xué)物質(zhì)使用限制及操作人員防護(hù)措施的指導(dǎo),符合當(dāng)前的環(huán)保和安全法規(guī)要求。

  6. 術(shù)語和定義的更新:隨著行業(yè)知識的發(fā)展,標(biāo)準(zhǔn)中涉及的專業(yè)術(shù)語和定義可能得到了修訂或增補(bǔ),以更準(zhǔn)確地反映當(dāng)前的技術(shù)理解和實(shí)踐。

  7. 驗(yàn)證和確認(rèn)程序:新版標(biāo)準(zhǔn)可能對實(shí)驗(yàn)室能力驗(yàn)證、儀器校準(zhǔn)及檢測方法確認(rèn)的具體流程進(jìn)行了細(xì)化或強(qiáng)化,確保檢測結(jié)果的可比性和實(shí)驗(yàn)室間的互認(rèn)性。


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文檔簡介

ICS

67.040

CCS

X04

中華人民共和國國家標(biāo)準(zhǔn)

GB/T15688—2024/ISO663:2017

代替GB/T15688—2008

動植物油脂不溶性雜質(zhì)含量的測定

Animalandvegetablefatsandoils—

Determinationofinsolubleimpuritiescontent

(ISO663:2017,IDT)

2024-08-23發(fā)布2025-03-01實(shí)施

國家市場監(jiān)督管理總局發(fā)布

國家標(biāo)準(zhǔn)化管理委員會

GB/T15688—2024/ISO663:2017

目次

前言

·····································································································

1

范圍

··································································································

1

2

規(guī)范性引用文件

······················································································

1

3

術(shù)語和定義

···························································································

1

4

原理

··································································································

1

5

試劑

··································································································

1

6

儀器

··································································································

2

7

扦樣

··································································································

2

8

試樣制備

······························································································

2

9

操作步驟

······························································································

2

9.1

試樣

······························································································

2

9.2

測定

······························································································

2

10

結(jié)果表示

····························································································

3

11

精密度

·······························································································

3

11.1

實(shí)驗(yàn)室間測試

···················································································

3

11.2

重復(fù)性

··························································································

3

11.3

再現(xiàn)性

··························································································

3

12

測試報(bào)告

····························································································

3

附錄A(資料性)

實(shí)驗(yàn)室間測試結(jié)果

·································································

4

參考文獻(xiàn)

··································································································

5

GB/T15688—2024/ISO663:2017

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/T15688—2008《動植物油脂不溶性雜質(zhì)含量的測定》,與GB/T15688—2008相比,

除結(jié)構(gòu)調(diào)整和編輯性改動外,主要技術(shù)內(nèi)容變化如下:

a)增加了不適用范圍(見第1章)。

本文件等同采用ISO663:2017《動植物油脂不溶性雜質(zhì)含量的測定》。

請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)識別專利的責(zé)任。

本文件由國家糧食和物資儲備局提出。

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

本文件起草單位:武漢市標(biāo)準(zhǔn)化研究院、武漢食品化妝品檢驗(yàn)所、武漢輕工大學(xué)、益海嘉里金龍魚

糧油食品股份有限公司、甘肅省標(biāo)準(zhǔn)化研究院。

本文件主要起草人:黃勇、江小明、黃青、張四紅、王格平、楊軼、方衛(wèi)星、任雯菁、楊永、

向小雪、肖榮輝。

本文件及其所代替文件的歷次版本發(fā)布情況為:

—1995年首次發(fā)布為GB/T15688—1995,2008第一次修訂;

—本次為第二次修訂。

GB/T15688—2024/ISO663:2017

動植物油脂不溶性雜質(zhì)含量的測定

1范圍

本文件描述了動植物油脂中不溶性雜質(zhì)含量的測定方法。

本文件適用于動植物油脂。如果皂類(特別是鈣皂)或氧化脂肪酸不作為不溶性雜質(zhì)含量進(jìn)行計(jì)

算,采用不同的溶劑和操作方法,使不溶性雜質(zhì)含量的測定符合相關(guān)要求。

本文件不適用于乳及乳制品(指從乳及乳制品中提煉的油脂)。

2規(guī)范性引用文件

下列文件中的內(nèi)容通過文中的規(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動植物油脂試樣的制備(Animalandvegetablefatsandoils—Preparationoftest

sample)

注:GB/T15687—2008動植物油脂試樣的制備(ISO661:2003,IDT)

3術(shù)語和定義

下列術(shù)語和定義適用于本文件。

3.1

不溶性雜質(zhì)含量insolubleimpuritiescontent

在本文件規(guī)定的條件下不溶于正己烷或石油醚的物質(zhì)及外來雜質(zhì)的量。

注1:含量用質(zhì)量分?jǐn)?shù)表示。

注2:這些雜質(zhì)包括機(jī)械雜質(zhì)、礦物質(zhì)、碳水化合物、含氮化合物、各種樹脂、鈣皂、氧化脂肪酸、脂肪酸內(nèi)酯和

(部分)堿皂、羥基脂肪酸及其甘油酯等。

4原理

用過量正己烷或石油醚溶解試樣,對所得溶液進(jìn)行過濾。再用同樣的溶劑沖洗殘留物和濾紙,使其

在103℃下干燥至恒重。

5試劑

警示─應(yīng)采用處理危險(xiǎn)品的操作規(guī)則,遵循各種技術(shù)、組織及個人的安全措施。

5.1正己

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