Para os compradores de embalagens, essa n\u00e3o \u00e9 apenas uma quest\u00e3o de laborat\u00f3rio. Uma garrafa que parece perfeitamente transparente ao sair da f\u00e1brica pode passar v\u00e1rias semanas no mar e v\u00e1rios meses em um dep\u00f3sito antes de chegar \u00e0 linha de envase. Se a composi\u00e7\u00e3o do vidro, o estado da superf\u00edcie, a embalagem ou o ambiente de armazenamento n\u00e3o forem adequados, podem ocorrer altera\u00e7\u00f5es vis\u00edveis na superf\u00edcie durante esse per\u00edodo.<\/p>\n\n\n\n
\u00c9 por isso que A resist\u00eancia hidrol\u00edtica \u00e9 um importante indicador da durabilidade qu\u00edmica das garrafas de vidro<\/strong>.<\/p>\n\n\n\n Neste guia, explicamos o que significa resist\u00eancia hidrol\u00edtica, por que ocorre a efloresc\u00eancia alcalina, como os recipientes de vidro s\u00e3o testados, o que afeta sua durabilidade qu\u00edmica e o que os compradores de embalagens para perfumes e cosm\u00e9ticos devem levar em considera\u00e7\u00e3o ao avaliar frascos de vidro.<\/p>\n\n\n\n A resist\u00eancia hidrol\u00edtica descreve a capacidade de uma superf\u00edcie de vidro de resistir ao ataque qu\u00edmico da \u00e1gua.<\/p>\n\n\n\n Quando a \u00e1gua entra em contato com o vidro de cal-soda-s\u00edlica, pode ocorrer um processo de troca i\u00f4nica na superf\u00edcie. Os \u00edons alcalinos \u2014 especialmente os \u00edons de s\u00f3dio \u2014 podem migrar do vidro e ser substitu\u00eddos por esp\u00e9cies que cont\u00eam hidrog\u00eanio provenientes da \u00e1gua.<\/p>\n\n\n\n Quanto melhor for a resist\u00eancia hidrol\u00edtica, menor ser\u00e1 a quantidade de \u00e1lcali liberada sob condi\u00e7\u00f5es de ensaio especificadas.<\/p>\n\n\n\n Essa propriedade \u00e9 particularmente importante quando o conte\u00fado permanece em contato direto com o vidro por longos per\u00edodos ou quando o recipiente \u00e9 exposto a temperaturas elevadas durante o processamento. \u00c9 tamb\u00e9m um indicador \u00fatil da durabilidade qu\u00edmica geral de um recipiente de vidro.<\/p>\n\n\n\n Uma das formas vis\u00edveis mais comuns de deteriora\u00e7\u00e3o da superf\u00edcie do vidro \u00e9 descrita como:<\/p>\n\n\n\n Em alguns mercados, esse fen\u00f4meno tamb\u00e9m \u00e9 conhecido informalmente como \u201cmofo do vidro\u201d. O processo geralmente come\u00e7a com a umidade.<\/p>\n\n\n\n As mol\u00e9culas de \u00e1gua do ar \u00famido s\u00e3o adsorvidas na superf\u00edcie do vidro. Mesmo quando uma garrafa de vidro est\u00e1 vazia, a umidade da atmosfera ao redor pode interagir com a superf\u00edcie do vidro.<\/p>\n\n\n\n No vidro convencional de soda-cal-s\u00edlica, os \u00edons alcalinos m\u00f3veis, particularmente os \u00edons de s\u00f3dio, podem migrar em dire\u00e7\u00e3o \u00e0 superf\u00edcie e participar de rea\u00e7\u00f5es de troca i\u00f4nica com a \u00e1gua. A superf\u00edcie, portanto, passa gradualmente a apresentar caracter\u00edsticas qu\u00edmicas diferentes das do vidro original.<\/p>\n\n\n\n O \u00e1lcali liberado pode reagir com a umidade e o di\u00f3xido de carbono presentes no ar. Com o tempo, carbonatos que cont\u00eam s\u00f3dio e outros compostos alcalinos sol\u00faveis podem se acumular na superf\u00edcie. Como esses compostos costumam ser higrosc\u00f3picos, eles podem atrair mais umidade e acelerar novas rea\u00e7\u00f5es na superf\u00edcie.<\/p>\n\n\n\n \u00c0 medida que o processo avan\u00e7a, a garrafa pode apresentar:<\/p>\n\n\n\n Em um est\u00e1gio inicial, alguns res\u00edduos superficiais ainda podem ser removidos por meio de limpeza. No entanto, se a pr\u00f3pria superf\u00edcie do vidro j\u00e1 tiver sofrido danos qu\u00edmicos, a opacidade resultante pode se tornar permanente.<\/p>\n\n\n\n N\u00e3o exatamente. Essa distin\u00e7\u00e3o \u00e9 importante.<\/p>\n\n\n\n Resist\u00eancia \u00e0 hidr\u00f3lise<\/strong> \u00e9 uma medi\u00e7\u00e3o em laborat\u00f3rio que avalia como uma superf\u00edcie de vidro se comporta quando exposta \u00e0 \u00e1gua em condi\u00e7\u00f5es controladas.<\/p>\n\n\n\n Intemperismo do vidro ou efloresc\u00eancia alcalina<\/strong> \u00e9 uma deteriora\u00e7\u00e3o vis\u00edvel da superf\u00edcie que pode ocorrer durante o armazenamento ou a exposi\u00e7\u00e3o ambiental.<\/p>\n\n\n\n Os dois est\u00e3o relacionados porque ambos envolvem a intera\u00e7\u00e3o entre a \u00e1gua e a superf\u00edcie do vidro, mas n\u00e3o s\u00e3o indicadores de qualidade id\u00eanticos.<\/p>\n\n\n\n Uma garrafa de vidro pode atender a um requisito espec\u00edfico de resist\u00eancia hidrol\u00edtica e, mesmo assim, exigir embalagem e armazenamento adequados para minimizar o desgaste causado pelas intemp\u00e9ries a longo prazo. Para os compradores, a abordagem correta \u00e9, portanto, n\u00e3o se basear apenas no resultado de um \u00fanico teste. A composi\u00e7\u00e3o do vidro, as condi\u00e7\u00f5es de fabrica\u00e7\u00e3o, o tratamento de superf\u00edcie, o m\u00e9todo de embalagem, o ambiente de armazenamento e o conte\u00fado pretendido devem ser avaliados em conjunto.<\/p>\n\n\n\n One internationally recognized method is ISO 4802-1:2023 \u2014 Glassware \u2014 Hydrolytic resistance of the interior surfaces of glass containers \u2014 Part 1: Determination by titration method and classification.<\/strong><\/p>\n\n\n\n The principle of the test is relatively straightforward. A specified amount of water is placed inside the glass container. The bottle is then exposed to elevated temperature under controlled conditions. Alkali released from the inner glass surface enters the water.<\/p>\n\n\n\n The extraction solution is subsequently titrated with a standardized acid solution. The amount of acid required indicates how much alkaline material has been released from the glass.<\/p>\n\n\n\n A typical test procedure includes:<\/p>\n\n\n\n 1. Selecting the required number of glass containers.<\/p>\n\n\n\n 2. Cleaning the samples according to the standard.<\/p>\n\n\n\n 3. Filling them with the specified test water.<\/p>\n\n\n\n 4. Heating the containers under controlled temperature and time conditions.<\/p>\n\n\n\n 5. Collecting the extraction solution.<\/p>\n\n\n\n 6. Titrating the solution using a standardized acid.<\/p>\n\n\n\n 7. Calculating and classifying the result according to the applicable standard.<\/p>\n\n\n\n For formal quality control, the exact test temperature, filling volume, sample quantity, titration method and acceptance limits must always follow the applicable standard.<\/p>\n\n\n\n Under ISO 4802-1 terminology, glass containers may be classified according to their inner-surface hydrolytic resistance. A simplified interpretation is:<\/p>\n\n\n\n Glass containers with very high hydrolytic resistance. This category is typically associated with glass compositions such as borosilicate or neutral glass, where high chemical resistance is primarily achieved through the glass composition itself.<\/p>\n\n\n\n Usually soda-lime-silica glass containers whose inner surfaces have been specially treated to improve hydrolytic resistance.<\/p>\n\n\n\n Typically untreated soda-lime-silica glass containers with moderate hydrolytic resistance.<\/p>\n\n\n\n However, buyers should not simply specify the highest possible class without considering the actual application. Pharmaceutical, food, beverage, perfume and cosmetic packaging have very different performance and regulatory requirements.<\/p>\n\n\n\n For glass containers manufactured and tested in China, GB\/T 4548<\/strong> is an important standard relating to the hydrolytic resistance of the inner surface of glass containers.<\/p>\n\n\n\n The new edition, GB\/T 4548-2026<\/strong>, was published on April 30, 2026 and is scheduled to take effect on November 1, 2026<\/strong>.<\/p>\n\n\n\n Until its effective date, manufacturers and laboratories should confirm which edition is currently applicable to the specific inspection or customer requirement.<\/p>\n\n\n\n Various Chinese standards for food and beverage glass containers have historically specified hydrolytic-resistance requirements such as HC3. However, this does n\u00e3o<\/strong> mean that HC3 is automatically a mandatory requirement for every perfume or cosmetic glass bottle.<\/p>\n\n\n\n For fragrance and cosmetic packaging, the appropriate requirement should be determined according to:<\/p>\n\n\n\n Chemical composition is one of the most important factors. Soda-lime-silica packaging glass is primarily based on a silica network, with sodium, calcium and other oxides added to achieve suitable melting, forming and mechanical properties.<\/p>\n\n\n\n In general, a stronger and more chemically stable glass network reduces the mobility and release of alkali ions. Increasing chemical durability typically involves controlling the proportion and interaction of the oxides that form and modify the glass network.<\/p>\n\n\n\n Borosilicate glass normally provides higher intrinsic hydrolytic resistance than conventional soda-lime glass. This is one reason borosilicate glass is widely used in demanding pharmaceutical applications.<\/p>\n\n\n\n However, borosilicate glass is not automatically required for conventional perfume bottles, cosmetic bottles, beverage bottles or food jars. The correct glass type should always be selected according to the intended application.<\/p>\n\n\n\n Glass production does not end when the bottle leaves the mould. The melting process, forming temperature and annealing conditions can influence the final properties of the glass. Poor process control may create inconsistent performance even when the nominal glass composition remains unchanged. Correct annealing is particularly important for controlling residual stress and ensuring stable quality.<\/p>\n\n\n\n For some applications, the inner surface of soda-lime glass may be treated to reduce alkali release. This process is commonly referred to as dealkalization or internal surface treatment<\/strong>.<\/p>\n\n\n\n The purpose is to reduce the concentration or mobility of alkaline species at the inner surface of the bottle. Appropriate treatment can significantly improve the hydrolytic resistance of soda-lime-silica glass containers.<\/p>\n\n\n\n However, the treatment should be verified by standardized testing rather than assumed from the treatment process alone.<\/p>\n\n\n\n Temperature strongly influences chemical reaction rates. A glass bottle stored for months in a hot warehouse can therefore experience more aggressive surface weathering than an identical bottle stored under cool and stable conditions.<\/p>\n\n\n\n This becomes especially important during international shipping. Shipping containers exposed to direct sunlight may experience significantly higher temperatures than normal indoor storage environments.<\/p>\n\n\n\n Humidity is one of the main drivers of glass weathering. Water adsorbed from humid air provides the medium necessary for ion exchange and subsequent surface reactions. For this reason, long-term storage in tropical, coastal or otherwise humid regions requires greater attention.<\/p>\n\n\n\n Glass weathering is time-dependent. A bottle that looks perfect immediately after production may behave differently after six or twelve months of poor storage.<\/p>\n\n\n\n This is particularly relevant for imported packaging, where empty containers may move through the following chain:<\/p>\n\n\n\n The actual storage period can therefore be much longer than many buyers initially expect.<\/p>\n\n\n\n Perfume packaging is different from pharmaceutical packaging, but chemical durability still matters.<\/p>\n\n\n\n A luxury perfume bottle is not merely a container. It is part of the brand experience.<\/p>\n\n\n\n White haze, surface fogging or visible alkaline deposits can make an otherwise functional bottle commercially unacceptable. A small visual defect that might be tolerated on a commodity container can be unacceptable on a premium perfume bottle displayed under strong retail lighting.<\/p>\n\n\n\n Perfume bottles exported internationally may spend several weeks in containers and warehouses. Routes passing through the Middle East, Southeast Asia and other hot or humid regions can expose glass packaging to challenging environmental conditions. Glass quality therefore needs to be supported by suitable packaging and storage conditions.<\/p>\n\n\n\n Perfume brands often purchase packaging several months before filling. Packaging distributors may hold bottles for even longer periods. The longer the storage period, the more important it becomes to control humidity, temperature and inventory rotation.<\/p>\n\n\n\n Hydrolytic resistance is important, but it does n\u00e3o<\/strong> prove complete compatibility with a perfume formula.<\/p>\n\n\n\n Fragrance products may contain:<\/p>\n\n\n\n For important projects, a compatibility test using the actual fragrance formula is more meaningful than relying only on the hydrolytic-resistance classification.<\/p>\n\n\n\n The complete packaging system should also be evaluated, including:<\/p>\n\n\n\n Normally, no.<\/p>\n\n\n\n Processes such as:<\/p>\n\n\n\n are mainly applied to the outside surface<\/strong> of the bottle. They should not be confused with internal surface treatment.<\/p>\n\n\n\n A sprayed or frosted perfume bottle may still have essentially the same inner-surface hydrolytic properties as the original clear bottle before decoration. This is an important distinction when reviewing a supplier\u2019s technical specifications.<\/p>\n\n\n\n There is no single solution. The best results come from controlling several factors together.<\/p>\n\n\n\n The glass formulation should provide adequate chemical durability for the intended application. For conventional perfume and cosmetic packaging, properly manufactured soda-lime glass is widely used and suitable for most applications. For more demanding applications, higher-performance glass compositions may be considered.<\/p>\n\n\n\n Stable melting, forming and annealing conditions are essential for maintaining consistent quality from one production batch to another. Process control is just as important as the nominal glass formulation.<\/p>\n\n\n\n When an application requires increased hydrolytic resistance, an appropriate internal surface treatment may be specified. The effectiveness of the treatment should then be verified by laboratory testing.<\/p>\n\n\n\n Empty bottles should be stored in a dry and ventilated environment. Persistent condensation and high humidity should be avoided. Large temperature fluctuations that cause moisture to condense inside cartons can also increase the risk of glass weathering.<\/p>\n\n\n\n Cartons, partitions, trays and protective packaging should remain dry. Wet or moisture-absorbing packaging materials can create a localized high-humidity environment around the glass surface. This may accelerate the formation of haze or alkaline deposits.<\/p>\n\n\n\n Bottle-to-bottle contact can cause mechanical marks and may also trap moisture between adjacent glass surfaces. Proper cardboard partitions, trays or protective packaging can reduce both physical and moisture-related damage.<\/p>\n\n\n\n A practical first-in, first-out (FIFO)<\/strong> inventory system is strongly recommended. The longer empty bottles remain in storage, especially in high-temperature and high-humidity conditions, the greater the risk of weathering.<\/p>\n\n\n\n When glass chemical durability matters, do not simply ask: \u201cIs the glass quality good?\u201d<\/strong> That question is too vague. Ask for measurable specifications.<\/p>\n\n\n\n A professional buyer may ask:<\/p>\n\n\n\n 1. What type of glass is used?<\/p>\n\n\n\n 2. Is the bottle made from soda-lime-silica or borosilicate glass?<\/p>\n\n\n\n 3. Which hydrolytic-resistance standard is used?<\/p>\n\n\n\n 4. What acceptance class is required?<\/p>\n\n\n\n 5. Has the inner surface received any special treatment?<\/p>\n\n\n\n 6. Is the test performed in-house or by an independent laboratory?<\/p>\n\n\n\n 7. What storage conditions are recommended?<\/p>\n\n\n\n 8. How long can the empty bottles normally be stored?<\/p>\n\n\n\n 9. Are production retention samples maintained?<\/p>\n\n\n\n 10. Has compatibility testing been carried out using the intended product formulation?<\/p>\n\n\n\n For perfume packaging, buyers should also confirm neck tolerances, pump compatibility, crimping performance and leakage resistance.<\/p>\n\n\n\n There is no universal answer. This is an area where buyers sometimes make an incorrect assumption.<\/p>\n\n\n\n A hydrolytic-resistance class that is appropriate for one type of glass container should not automatically be applied to every other type.<\/p>\n\n\n\n For a conventional soda-lime perfume bottle, the appropriate specification depends on:<\/p>\n\n\n\n If a customer specifically requires an HC or HCT classification, the requirement should be clearly written into the technical specification before mass production. For particularly sensitive formulations or demanding storage conditions, additional compatibility testing should be performed.<\/p>\n\n\n\n Sometimes\u2014but not always.<\/p>\n\n\n\n If the haze is caused mainly by early-stage soluble surface deposits, appropriate cleaning may restore the original appearance. If the surface reaction has already caused permanent chemical damage to the glass structure, cleaning may not completely restore transparency.<\/p>\n\n\n\n This is why preventing glass weathering is much better than attempting to repair bottles after long-term storage.<\/p>\n\n\n\n No. Optical clarity and chemical durability are different properties.<\/p>\n\n\n\n A very clear high-flint perfume bottle may have excellent visual quality, but appearance alone does not determine hydrolytic resistance. Chemical composition, manufacturing conditions and surface treatment must also be considered.<\/p>\n\n\n\n A reliable glass container must satisfy much more than appearance. Depending on the intended application, quality control may include:<\/p>\n\n\n\n For perfume packaging in particular, FEA neck tolerances, pump compatibility, crimping quality and long-term fragrance compatibility<\/strong> may be just as important as glass hydrolytic resistance.<\/p>\n\n\n\n A strong quality-control system therefore evaluates the bottle as part of a complete packaging system rather than judging it by one parameter alone.<\/p>\n\n\n\n Glass is chemically stable, but it is not chemically indestructible.<\/p>\n\n\n\n Water, humidity, heat and time can interact with a glass surface and cause alkali release, weathering and visible haze, especially when soda-lime glass is stored for long periods under unfavorable conditions.<\/p>\n\n\n\n Understanding glass bottle hydrolytic resistance<\/strong> helps manufacturers and packaging buyers identify these risks before they become quality problems or customer complaints.<\/p>\n\n\n\n For perfume and cosmetic packaging, the most effective strategy is to combine:<\/p>\n\n\n\n The goal should not simply be to purchase a glass bottle that looks perfect when it leaves the factory.<\/p>\n\n\n\n The real goal is to make sure that the bottle still looks and performs correctly after shipping, storage, filling and the entire life cycle of the finished product<\/strong>.<\/p>\n\n\n\n For custom perfume bottles, cosmetic glass packaging or projects requiring specific hydrolytic-resistance standards, Xuzhou Daxin Glass Products Co., Ltd. can incorporate agreed testing methods and acceptance criteria into the product specification before mass production.<\/strong><\/p>","protected":false},"excerpt":{"rendered":" Glass is widely used for perfume, cosmetics, food, beverages and pharmaceutical packaging because of its transparency, barrier properties, chemical stability and premium appearance. However, glass is not completely inert. When a glass surface is exposed to water, moisture, heat or certain chemical environments for a long period, small quantities of alkali ions can migrate from […]<\/p>\n","protected":false},"featured_media":37041,"menu_order":0,"template":"","news-category":[],"class_list":["post-37039","news","type-news","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"\n![\"Ilustra\u00e7\u00e3o](\"https:\/\/www.daxinglassbottles.com\/wp-content\/uploads\/2026\/08\/Illustration-moisture-driven-glass-weathering-alkali-migration-and-white-haze-formation-1024x683.png\")
O que \u00e9 a resist\u00eancia hidrol\u00edtica de uma garrafa de vidro?<\/strong><\/strong><\/h1>\n\n\n\n
Uma alta resist\u00eancia hidrol\u00edtica significa que h\u00e1 menor libera\u00e7\u00e3o de \u00e1lcali da superf\u00edcie do vidro quando este \u00e9 exposto \u00e0 \u00e1gua.<\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n Por que as garrafas de vidro apresentam uma n\u00e9voa branca ou uma camada alcalina?<\/strong><\/strong><\/h1>\n\n\n\n
\n
1. A umidade atinge a superf\u00edcie do vidro<\/strong><\/strong><\/h2>\n\n\n\n
2. Os \u00edons alcalinos migram<\/strong><\/strong><\/h2>\n\n\n\n
3. Formul\u00e1rio de produtos alcalinos para superf\u00edcies<\/strong><\/strong><\/h2>\n\n\n\n
4. Aparecem manchas, res\u00edduos ou uma camada opaca<\/strong><\/strong><\/h2>\n\n\n\n
\n
A forma\u00e7\u00e3o de sal alcalino \u00e9 o mesmo que baixa resist\u00eancia hidrol\u00edtica?<\/strong><\/strong><\/h1>\n\n\n\n
Como \u00e9 testada a resist\u00eancia hidrol\u00edtica de recipientes de vidro?<\/strong><\/strong><\/h1>\n\n\n\n
The lower the amount of extractable alkali, the better the hydrolytic resistance of the glass surface.<\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n Understanding HCT1, HCT2 and HCT3 Glass Classes<\/strong><\/strong><\/h1>\n\n\n\n
HCT1<\/strong><\/strong><\/h2>\n\n\n\n
HCT2<\/strong><\/strong><\/h2>\n\n\n\n
HCT3<\/strong><\/strong><\/h2>\n\n\n\n
Within these classifications, HCT1 represents higher hydrolytic resistance than HCT2, and HCT2 is higher than HCT3.<\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n A Note on GB\/T 4548 in China<\/strong><\/strong><\/h1>\n\n\n\n
\n
What Factors Affect the Hydrolytic Resistance of Glass?<\/strong><\/strong><\/h1>\n\n\n\n
1. Glass Composition<\/strong><\/strong><\/h2>\n\n\n\n
2. Manufacturing and Annealing Conditions<\/strong><\/strong><\/h2>\n\n\n\n
3. Inner-Surface Treatment<\/strong><\/strong><\/h2>\n\n\n\n
4. Temperature<\/strong><\/strong><\/h2>\n\n\n\n
5. Humidity<\/strong><\/strong><\/h2>\n\n\n\n
6. Storage Time<\/strong><\/strong><\/h2>\n\n\n\n
glass factory \u2192 export warehouse \u2192 ocean freight \u2192 import warehouse \u2192 filling factory \u2192 finished product warehouse<\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n Why Hydrolytic Resistance Matters for Perfume and Cosmetic Glass Bottles<\/strong><\/strong><\/h1>\n\n\n\n
Appearance Is Part of the Product<\/strong><\/strong><\/h2>\n\n\n\n
International Shipping Creates Harsh Conditions<\/strong><\/strong><\/h2>\n\n\n\n
Long-Term Inventory Increases Risk<\/strong><\/strong><\/h2>\n\n\n\n
Product Compatibility Must Be Evaluated Separately<\/strong><\/strong><\/h2>\n\n\n\n
\n
\n
Does External Spraying or Frosting Improve Hydrolytic Resistance?<\/strong><\/strong><\/h1>\n\n\n\n
\n
How Can Glass Bottle Weathering and Alkali Bloom Be Reduced?<\/strong><\/strong><\/h1>\n\n\n\n
Choose the Appropriate Glass Composition<\/strong><\/strong><\/h2>\n\n\n\n
Control the Manufacturing Process<\/strong><\/strong><\/h2>\n\n\n\n
Use Inner-Surface Treatment When Required<\/strong><\/strong><\/h2>\n\n\n\n
Keep Bottles Dry During Storage<\/strong><\/strong><\/h2>\n\n\n\n
Keep Packaging Materials Dry<\/strong><\/strong><\/h2>\n\n\n\n
Use Suitable Bottle Separation<\/strong><\/strong><\/h2>\n\n\n\n
Control Inventory Age<\/strong><\/strong><\/h2>\n\n\n\n
What Should Buyers Ask a Glass Bottle Supplier?<\/strong><\/strong><\/h1>\n\n\n\n
Is HC3 Good Enough for a Perfume Bottle?<\/strong><\/strong><\/h1>\n\n\n\n
\n
Can White Haze on Glass Bottles Be Removed?<\/strong><\/strong><\/h1>\n\n\n\n
Is Clearer Glass Always More Chemically Stable?<\/strong><\/strong><\/h1>\n\n\n\n
Transparency should never be used as the sole indicator of glass chemical durability.<\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n Hydrolytic Resistance Is Only One Part of Glass Bottle Quality<\/strong><\/strong><\/h1>\n\n\n\n
\n
Considera\u00e7\u00f5es finais<\/strong><\/strong><\/h1>\n\n\n\n
appropriate glass composition + controlled manufacturing + suitable surface treatment when required + proper storage + standardized testing + product compatibility evaluation<\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n